diff --git a/.gitignore b/.gitignore
index aa9bf3d2..dcdaa3a6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,4 +12,7 @@ composer.phar
 .phpunit.result.cache
 test/unit/_html
 
-PrivateKey.key
\ No newline at end of file
+PrivateKey.key
+
+# Local development
+.lando.yml
\ No newline at end of file
diff --git a/composer.json b/composer.json
index 08c4163d..f007bd8c 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
     "guzzlehttp/guzzle": "^7.0",
     "symfony/yaml": "^5.0 || ^6.0 || ^7.0",
     "netresearch/jsonmapper": "^5.0",
-    "symfony/console": "^4.4 || ^5.4 || ^6.0"
+    "symfony/console": "^4.4 || ^5.4 || ^6.0 || ^7.0"
   },
   "authors": [
     {
diff --git a/src/BitPaySDK/Client.php b/src/BitPaySDK/Client.php
index cb91d1e2..4fb9403e 100644
--- a/src/BitPaySDK/Client.php
+++ b/src/BitPaySDK/Client.php
@@ -18,6 +18,7 @@
 use BitPaySDK\Client\RateClient;
 use BitPaySDK\Client\RefundClient;
 use BitPaySDK\Client\SettlementClient;
+use BitPaySDK\Client\SubscriptionClient;
 use BitPaySDK\Client\TokenClient;
 use BitPaySDK\Client\WalletClient;
 use BitPaySDK\Exceptions\BitPayApiException;
@@ -36,6 +37,7 @@
 use BitPaySDK\Model\Rate\Rate;
 use BitPaySDK\Model\Rate\Rates;
 use BitPaySDK\Model\Settlement\Settlement;
+use BitPaySDK\Model\Subscription\Subscription;
 use BitPaySDK\Model\Wallet\Wallet;
 use BitPaySDK\Util\RESTcli\RESTcli;
 use Exception;
@@ -576,7 +578,7 @@ public function getBill(string $billId, string $facade = Facade::MERCHANT, bool
      *
      * @see https://developer.bitpay.com/reference/retrieve-bills-by-status Retrieve Bills by Status
      *
-     * @param string|null The status to filter the bills.
+     * @param $status string|null The status to filter the bills.
      * @return Bill[]
      * @throws BitPayApiException
      * @throws BitPayGenericException
@@ -625,6 +627,75 @@ public function deliverBill(string $billId, string $billToken, bool $signRequest
         return $billClient->deliver($billId, $billToken, $signRequest);
     }
 
+    /**
+     * Create a BitPay Subscription.
+     *
+     * @see https://developer.bitpay.com/reference/create-a-subscription Create a Subscription
+     *
+     * @param Subscription $subscription A Subscription object with request parameters defined.
+     * @return Subscription Created Subscription object
+     * @throws BitPayApiException
+     * @throws BitPayGenericException
+     */
+    public function createSubscription(Subscription $subscription): Subscription
+    {
+        $subscriptionClient = $this->getSubscriptionClient();
+
+        return $subscriptionClient->create($subscription);
+    }
+
+    /**
+     * Retrieve a BitPay subscription by its ID.
+     *
+     * @see https://developer.bitpay.com/reference/retrieve-a-subscription Retrieve a Subscription
+     *
+     * @param $subscriptionId string The ID of the subscription to retrieve.
+     * @return Subscription
+     * @throws BitPayApiException
+     * @throws BitPayGenericException
+     */
+    public function getSubscription(string $subscriptionId): Subscription
+    {
+        $subscriptionClient = $this->getSubscriptionClient();
+
+        return $subscriptionClient->get($subscriptionId);
+    }
+
+    /**
+     * Retrieve a collection of BitPay subscriptions.
+     *
+     * @see https://developer.bitpay.com/reference/retrieve-subscriptions-by-status Retrieve Subscriptions by Status
+     *
+     * @param $status string|null The status on which to filter the subscriptions.
+     * @return Subscription[] Filtered list of Subscription objects
+     * @throws BitPayApiException
+     * @throws BitPayGenericException
+     */
+    public function getSubscriptions(?string $status = null): array
+    {
+        $subscriptionClient = $this->getSubscriptionClient();
+
+        return $subscriptionClient->getSubscriptions($status);
+    }
+
+    /**
+     * Update a BitPay Subscription.
+     *
+     * @see https://developer.bitpay.com/reference/update-a-subscription Update a Subscription
+     *
+     * @param Subscription $subscription A Subscription object with the parameters to update defined.
+     * @param string $subscriptionId The ID of the Subscription to update.
+     * @return Subscription Updated Subscription object
+     * @throws BitPayApiException
+     * @throws BitPayGenericException
+     */
+    public function updateSubscription(Subscription $subscription, string $subscriptionId): Subscription
+    {
+        $subscriptionClient = $this->getSubscriptionClient();
+
+        return $subscriptionClient->update($subscription, $subscriptionId);
+    }
+
     /**
      * Retrieve the exchange rate table maintained by BitPay.
      * @see https://bitpay.com/bitcoin-exchange-rates
@@ -1113,6 +1184,16 @@ protected function getBillClient(): BillClient
         return BillClient::getInstance($this->tokenCache, $this->restCli);
     }
 
+    /**
+     * Gets subscription client
+     *
+     * @return SubscriptionClient the subscription client
+     */
+    protected function getSubscriptionClient(): SubscriptionClient
+    {
+        return SubscriptionClient::getInstance($this->tokenCache, $this->restCli);
+    }
+
     /**
      * Gets rate client
      *
diff --git a/src/BitPaySDK/Client/SubscriptionClient.php b/src/BitPaySDK/Client/SubscriptionClient.php
new file mode 100644
index 00000000..5588d33d
--- /dev/null
+++ b/src/BitPaySDK/Client/SubscriptionClient.php
@@ -0,0 +1,172 @@
+<?php
+
+/**
+ * Copyright (c) 2025 BitPay
+ **/
+
+declare(strict_types=1);
+
+namespace BitPaySDK\Client;
+
+use BitPaySDK\Exceptions\BitPayApiException;
+use BitPaySDK\Exceptions\BitPayExceptionProvider;
+use BitPaySDK\Exceptions\BitPayGenericException;
+use BitPaySDK\Model\Subscription\Subscription;
+use BitPaySDK\Model\Facade;
+use BitPaySDK\Tokens;
+use BitPaySDK\Util\JsonMapperFactory;
+use BitPaySDK\Util\RESTcli\RESTcli;
+use Exception;
+
+/**
+ * Handles interactions with the subscriptions endpoints.
+ *
+ * @package BitPaySDK\Client
+ * @author BitPay Integrations <integrations@bitpay.com>
+ * @license http://www.opensource.org/licenses/mit-license.php MIT
+ */
+class SubscriptionClient
+{
+    private static ?self $instance = null;
+    private Tokens $tokenCache;
+    private RESTcli $restCli;
+
+    private function __construct(Tokens $tokenCache, RESTcli $restCli)
+    {
+        $this->tokenCache = $tokenCache;
+        $this->restCli = $restCli;
+    }
+
+    /**
+     * Factory method for Subscription Client.
+     *
+     * @param Tokens $tokenCache
+     * @param RESTcli $restCli
+     * @return static
+     */
+    public static function getInstance(Tokens $tokenCache, RESTcli $restCli): self
+    {
+        if (!self::$instance) {
+            self::$instance = new self($tokenCache, $restCli);
+        }
+
+        return self::$instance;
+    }
+
+    /**
+     * Create a BitPay Subscription.
+     *
+     * @param Subscription $subscription A Subscription object with request parameters defined.
+     * @return Subscription Created Subscription object
+     * @throws BitPayApiException
+     * @throws BitPayGenericException
+     */
+    public function create(Subscription $subscription): Subscription
+    {
+        $subscription->setToken($this->tokenCache->getTokenByFacade(Facade::MERCHANT));
+
+        $responseJson = $this->restCli->post("subscriptions", $subscription->toArray());
+
+        try {
+            return $this->mapJsonToSubscriptionClass($responseJson);
+        } catch (Exception $e) {
+            BitPayExceptionProvider::throwDeserializeResourceException('Subscription', $e->getMessage());
+        }
+    }
+
+    /**
+     * Retrieve a BitPay subscription by its resource ID.
+     *
+     * @param $subscriptionId      string The id of the subscription to retrieve.
+     * @return Subscription Retrieved Subscription object
+     * @throws BitPayApiException
+     * @throws BitPayGenericException
+     */
+    public function get(string $subscriptionId): Subscription
+    {
+        $params = [];
+        $params["token"] = $this->tokenCache->getTokenByFacade(Facade::MERCHANT);
+
+        $responseJson = $this->restCli->get("subscriptions/" . $subscriptionId, $params);
+
+        try {
+            return $this->mapJsonToSubscriptionClass($responseJson);
+        } catch (Exception $e) {
+            BitPayExceptionProvider::throwDeserializeResourceException('Subscription', $e->getMessage());
+        }
+    }
+
+    /**
+     * Retrieve a collection of BitPay subscriptions.
+     *
+     * @param string|null $status The status to filter the subscriptions.
+     * @return Subscription[] Filtered list of Subscription objects
+     * @throws BitPayApiException
+     * @throws BitPayGenericException
+     */
+    public function getSubscriptions(?string $status = null): array
+    {
+        $params = [];
+        $params["token"] = $this->tokenCache->getTokenByFacade(Facade::MERCHANT);
+        if ($status) {
+            $params["status"] = $status;
+        }
+
+        $responseJson = $this->restCli->get("subscriptions", $params);
+
+        try {
+            $mapper = JsonMapperFactory::create();
+            return $mapper->mapArray(
+                json_decode($responseJson, true, 512, JSON_THROW_ON_ERROR),
+                [],
+                Subscription::class
+            );
+        } catch (Exception $e) {
+            BitPayExceptionProvider::throwDeserializeResourceException('Subscription', $e->getMessage());
+        }
+    }
+
+    /**
+     * Update a BitPay Subscription.
+     *
+     * @param Subscription $subscription A Subscription object with the parameters to update defined.
+     * @param string $subscriptionId The ID of the Subscription to update.
+     * @return Subscription Updated Subscription object
+     * @throws BitPayApiException
+     * @throws BitPayGenericException
+     */
+    public function update(Subscription $subscription, string $subscriptionId): Subscription
+    {
+        $subscriptionToken = $this->get($subscription->getId())->getToken();
+        $subscription->setToken($subscriptionToken);
+
+        $responseJson = $this->restCli->update("subscriptions/" . $subscriptionId, $subscription->toArray());
+
+        try {
+            $mapper = JsonMapperFactory::create();
+
+            return $mapper->map(
+                json_decode($responseJson, true, 512, JSON_THROW_ON_ERROR),
+                $subscription
+            );
+        } catch (Exception $e) {
+            BitPayExceptionProvider::throwDeserializeResourceException('Subscription', $e->getMessage());
+        }
+    }
+
+    /**
+     * @param string|null $responseJson
+     * @return Subscription
+     * @throws \JsonException
+     * @throws \JsonMapper_Exception
+     */
+    private function mapJsonToSubscriptionClass(?string $responseJson): Subscription
+    {
+        $mapper = JsonMapperFactory::create();
+
+        return $mapper->map(
+            json_decode($responseJson, true, 512, JSON_THROW_ON_ERROR),
+            new Subscription()
+        );
+    }
+}
diff --git a/src/BitPaySDK/Env.php b/src/BitPaySDK/Env.php
index 2c1a9e09..7e8d3d40 100644
--- a/src/BitPaySDK/Env.php
+++ b/src/BitPaySDK/Env.php
@@ -20,4 +20,5 @@ interface Env
     public const BITPAY_PLUGIN_INFO = "BitPay_PHP_Client_v9.2.0";
     public const BITPAY_API_FRAME = "std";
     public const BITPAY_API_FRAME_VERSION = "1.0.0";
+    public const BITPAY_DATETIME_FORMAT = 'Y-m-d\TH:i:s\Z';
 }
diff --git a/src/BitPaySDK/Model/Settlement/Settlement.php b/src/BitPaySDK/Model/Settlement/Settlement.php
index 43d0204b..9c95ce0d 100644
--- a/src/BitPaySDK/Model/Settlement/Settlement.php
+++ b/src/BitPaySDK/Model/Settlement/Settlement.php
@@ -141,6 +141,7 @@ public function setPayoutInfo(PayoutInfo $payoutInfo): void
      * Gets Status of the settlement. Possible statuses are "new", "processing", "rejected" and "completed".
      *
      * @return string|null
+     * @see SettlementStatus
      */
     public function getStatus(): ?string
     {
@@ -151,6 +152,7 @@ public function getStatus(): ?string
      * Sets Status of the settlement. Possible statuses are "new", "processing", "rejected" and "completed".
      *
      * @param string $status
+     * @see SettlementStatus
      */
     public function setStatus(string $status): void
     {
diff --git a/src/BitPaySDK/Model/Settlement/SettlementStatus.php b/src/BitPaySDK/Model/Settlement/SettlementStatus.php
new file mode 100644
index 00000000..e848653a
--- /dev/null
+++ b/src/BitPaySDK/Model/Settlement/SettlementStatus.php
@@ -0,0 +1,29 @@
+<?php
+
+/**
+ * Copyright (c) 2025 BitPay
+ **/
+
+/**
+ * @author BitPay Integrations <integrations@bitpay.com>
+ * @license http://www.opensource.org/licenses/mit-license.php MIT
+ */
+
+namespace BitPaySDK\Model\Settlement;
+
+/**
+ * Status of the settlement.
+ * Possible statuses are "new", "processing", "rejected" and "completed".
+ *
+ * @package BitPaySDK\Model\Settlement
+ * @author BitPay Integrations <integrations@bitpay.com>
+ * @license http://www.opensource.org/licenses/mit-license.php MIT
+ * @see https://developer.bitpay.com/reference/settlements Settlements
+ */
+interface SettlementStatus
+{
+    public const NEW = "new";
+    public const PROCESSING = "processing";
+    public const REJECTED = "rejected";
+    public const COMPLETED = "completed";
+}
diff --git a/src/BitPaySDK/Model/Subscription/BillData.php b/src/BitPaySDK/Model/Subscription/BillData.php
new file mode 100644
index 00000000..74611b73
--- /dev/null
+++ b/src/BitPaySDK/Model/Subscription/BillData.php
@@ -0,0 +1,485 @@
+<?php
+
+/**
+ * Copyright (c) 2025 BitPay
+ **/
+
+declare(strict_types=1);
+
+namespace BitPaySDK\Model\Subscription;
+
+use BitPaySDK\Env;
+use BitPaySDK\Exceptions\BitPayExceptionProvider;
+use BitPaySDK\Exceptions\BitPayValidationException;
+use BitPaySDK\Model\Currency;
+
+/**
+ * @package BitPaySDK\Model\Subscription
+ * @author BitPay Integrations <integrations@bitpay.com>
+ * @license http://www.opensource.org/licenses/mit-license.php MIT
+ */
+class BillData
+{
+    protected ?bool $emailBill = null;
+    protected ?array $cc = null;
+    protected ?string $number = null;
+    protected ?string $currency = null;
+    protected ?string $name = null;
+    protected ?string $address1 = null;
+    protected ?string $address2 = null;
+    protected ?string $city = null;
+    protected ?string $state = null;
+    protected ?string $zip = null;
+    protected ?string $country = null;
+    protected ?string $email = null;
+    protected ?string $phone = null;
+    protected ?string $dueDate = null;
+    protected ?bool $passProcessingFee = null;
+    protected array $items = [];
+
+    /**
+     * Constructor, create a minimal request BillData object.
+     *
+     * @param string|null $number Recurring bill identifier, specified by merchant
+     * @param string|null $currency The three digit currency code used to compute the billData's amount.
+     * @param string|null $email The email address of the receiver for this billData.
+     * @param string|\DateTime|null $dueDate Date and time at which a bill is due, ISO-8601 format yyyy-mm-ddThh:mm:ssZ
+     *                                       (UTC).
+     * @param array|null $items The list of line items to add to this billData.
+     */
+    public function __construct(
+        ?string $number = null,
+        ?string $currency = null,
+        ?string $email = null,
+        string|\DateTime|null $dueDate = null,
+        ?array $items = null
+    ) {
+        $this->number = $number;
+        $this->currency = $currency ?: Currency::USD;
+        $this->email = $email;
+        $this->setEmailBill();
+
+        if (!$dueDate || is_a($dueDate, \DateTime::class)) {
+            $dueDate = ($dueDate ? new \DateTime('now') : $dueDate)->format(Env::BITPAY_DATETIME_FORMAT);
+        }
+        $this->dueDate = $dueDate;
+
+        if (!$items) {
+            $items = [];
+        }
+        $this->setItems($items);
+    }
+
+    /**
+     * Gets billData emailBill
+     *
+     * If set to `true`, BitPay will automatically issue recurring bills to the `email` address provided once the
+     * status of the subscription is set to `active`.
+     *
+     * @return bool|null
+     */
+    public function getEmailBill(): ?bool
+    {
+        return $this->emailBill;
+    }
+
+    /**
+     * Sets billData's emailBill
+     *
+     * If set to `true`, BitPay will automatically issue recurring bills to the `email` address provided once the
+     * status of the subscription is set to `active`.
+     *
+     * @param bool|null $emailBill
+     * @return void
+     */
+    public function setEmailBill(?bool $emailBill = true): void
+    {
+        $this->emailBill = $emailBill;
+    }
+
+    /**
+     * Gets items from billData
+     *
+     * @return Item[]
+     */
+    public function getItems(): array
+    {
+        return $this->items;
+    }
+
+    /**
+     * Sets BillData's items
+     *
+     * @param Item[] $items List of line items
+     */
+    public function setItems(array $items): void
+    {
+        $itemsArray = [];
+
+        foreach ($items as $item) {
+            if ($item instanceof Item) {
+                $itemsArray[] = $item;
+            } else {
+                $itemsArray[] = Item::createFromArray((array)$item);
+            }
+        }
+
+        $this->items = $itemsArray;
+    }
+
+    /**
+     * Gets items as array from billData
+     *
+     * @return array|null items as array from billData
+     */
+    public function getItemsAsArray(): ?array
+    {
+        $items = [];
+
+        foreach ($this->items as $item) {
+            $items[] = $item->toArray();
+        }
+
+        return $items;
+    }
+
+    /**
+     * Get billData data as array
+     *
+     * @return array billData data as array
+     */
+    public function toArray(): array
+    {
+        $elements = [
+            'emailBill' => $this->emailBill,
+            'cc' => $this->getCc(),
+            'number' => $this->getNumber(),
+            'currency' => $this->getCurrency(),
+            'name' => $this->getName(),
+            'address1' => $this->getAddress1(),
+            'address2' => $this->getAddress2(),
+            'city' => $this->getCity(),
+            'state' => $this->getState(),
+            'zip' => $this->getZip(),
+            'country' => $this->getCountry(),
+            'email' => $this->getEmail(),
+            'phone' => $this->getPhone(),
+            'dueDate' => $this->getDueDate(),
+            'passProcessingFee' => $this->getPassProcessingFee(),
+            'items' => $this->getItemsAsArray(),
+        ];
+
+        foreach ($elements as $key => $value) {
+            if (empty($value)) {
+                unset($elements[$key]);
+            }
+        }
+
+        return $elements;
+    }
+
+    /**
+     * Gets BillData cc
+     *
+     * Email addresses to which a copy of the billData must be sent
+     *
+     * @return array|null the cc
+     */
+    public function getCc(): ?array
+    {
+        return $this->cc;
+    }
+
+    /**
+     * Sets BillData's cc
+     *
+     * Email addresses to which a copy of the billData must be sent
+     *
+     * @param array $cc Email addresses to which a copy of the billData must be sent
+     */
+    public function setCc(array $cc): void
+    {
+        $this->cc = $cc;
+    }
+
+    /**
+     * Gets billData number
+     *
+     * BillData identifier, specified by merchant
+     *
+     * @return string|null the number
+     */
+    public function getNumber(): ?string
+    {
+        return $this->number;
+    }
+
+    /**
+     * Sets BillData's number
+     *
+     * BillData identifier, specified by merchant
+     *
+     * @param string $number BillData identifier, specified by merchant
+     */
+    public function setNumber(string $number): void
+    {
+        $this->number = $number;
+    }
+
+    /**
+     * Gets billData currency
+     *
+     * ISO 4217 3-character currency code. This is the currency associated with the price field
+     *
+     * @return string|null the billData currency
+     */
+    public function getCurrency(): ?string
+    {
+        return $this->currency;
+    }
+
+    /**
+     * Sets BillData's currency
+     *
+     * ISO 4217 3-character currency code. This is the currency associated with the price field
+     *
+     * @param string $currency 3-character currency code
+     * @throws BitPayValidationException
+     */
+    public function setCurrency(string $currency): void
+    {
+        if (!Currency::isValid($currency)) {
+            BitPayExceptionProvider::throwInvalidCurrencyException($currency);
+        }
+
+        $this->currency = $currency;
+    }
+
+    /**
+     * Gets BillData recipient's name
+     *
+     * @return string|null the name
+     */
+    public function getName(): ?string
+    {
+        return $this->name;
+    }
+
+    /**
+     * Sets BillData recipient's name
+     *
+     * @param string $name BillData recipient's name
+     */
+    public function setName(string $name): void
+    {
+        $this->name = $name;
+    }
+
+    /**
+     * Gets BillData recipient's address
+     *
+     * @return string|null the address1
+     */
+    public function getAddress1(): ?string
+    {
+        return $this->address1;
+    }
+
+    /**
+     * Sets BillData recipient's address
+     *
+     * @param string $address1 BillData recipient's address
+     */
+    public function setAddress1(string $address1): void
+    {
+        $this->address1 = $address1;
+    }
+
+    /**
+     * Gets BillData recipient's address
+     *
+     * @return string|null the address2
+     */
+    public function getAddress2(): ?string
+    {
+        return $this->address2;
+    }
+
+    /**
+     * Sets BillData recipient's address
+     *
+     * @param string $address2 BillData recipient's address
+     */
+    public function setAddress2(string $address2): void
+    {
+        $this->address2 = $address2;
+    }
+
+    /**
+     * Gets BillData recipient's city
+     *
+     * @return string|null the city
+     */
+    public function getCity(): ?string
+    {
+        return $this->city;
+    }
+
+    /**
+     * Sets BillData recipient's city
+     *
+     * @param string $city BillData recipient's city
+     */
+    public function setCity(string $city): void
+    {
+        $this->city = $city;
+    }
+
+    /**
+     * Gets BillData recipient's state or province
+     *
+     * @return string|null the state
+     */
+    public function getState(): ?string
+    {
+        return $this->state;
+    }
+
+    /**
+     * Sets BillData recipient's state or province
+     *
+     * @param string $state BillData recipient's state or province
+     */
+    public function setState(string $state): void
+    {
+        $this->state = $state;
+    }
+
+    /**
+     * Gets BillData recipient's ZIP code
+     *
+     * @return string|null the zip
+     */
+    public function getZip(): ?string
+    {
+        return $this->zip;
+    }
+
+    /**
+     * Sets BillData recipient's ZIP code
+     *
+     * @param string $zip BillData recipient's ZIP code
+     */
+    public function setZip(string $zip): void
+    {
+        $this->zip = $zip;
+    }
+
+    /**
+     * Gets BillData recipient's country
+     *
+     * @return string|null the country
+     */
+    public function getCountry(): ?string
+    {
+        return $this->country;
+    }
+
+    /**
+     * Sets BillData recipient's country
+     *
+     * @param string $country BillData recipient's country
+     */
+    public function setCountry(string $country): void
+    {
+        $this->country = $country;
+    }
+
+    /**
+     * Gets billData email
+     *
+     * @return string|null the email
+     */
+    public function getEmail(): ?string
+    {
+        return $this->email;
+    }
+
+    /**
+     * Sets BillData's email
+     *
+     * @param string $email BillData's email
+     */
+    public function setEmail(string $email): void
+    {
+        $this->email = $email;
+    }
+
+    /**
+     * Gets BillData recipient's phone number
+     *
+     * @return string|null the phone
+     */
+    public function getPhone(): ?string
+    {
+        return $this->phone;
+    }
+
+    /**
+     * Sets BillData recipient's phone number
+     *
+     * @param string $phone BillData recipient's phone number
+     */
+    public function setPhone(string $phone): void
+    {
+        $this->phone = $phone;
+    }
+
+    /**
+     * Gets BillData due date
+     *
+     * Date and time at which a billData is due, ISO-8601 format yyyy-mm-ddThh:mm:ssZ. (UTC)
+     *
+     * @return string|null the number
+     * @see Env::BITPAY_DATETIME_FORMAT
+     */
+    public function getDueDate(): ?string
+    {
+        return $this->dueDate;
+    }
+
+    /**
+     * Sets BillData's due date
+     *
+     * Date and time at which a billData is due, ISO-8601 format yyyy-mm-ddThh:mm:ssZ. (UTC)
+     *
+     * @param string $dueDate Date and time at which a billData is due
+     * @see Env::BITPAY_DATETIME_FORMAT
+     */
+    public function setDueDate(string $dueDate): void
+    {
+        $this->dueDate = $dueDate;
+    }
+
+    /**
+     * Gets billData pass processing fee
+     *
+     * @return bool|null the pass processing fee
+     */
+    public function getPassProcessingFee(): ?bool
+    {
+        return $this->passProcessingFee;
+    }
+
+    /**
+     * Sets BillData's pass processing fee
+     *
+     * If set to `true`, BitPay's processing fee will be included in the amount charged on the invoice
+     *
+     * @param bool $passProcessingFee BillData's pass processing fee
+     */
+    public function setPassProcessingFee(bool $passProcessingFee): void
+    {
+        $this->passProcessingFee = $passProcessingFee;
+    }
+}
diff --git a/src/BitPaySDK/Model/Subscription/Item.php b/src/BitPaySDK/Model/Subscription/Item.php
new file mode 100644
index 00000000..3432fb4a
--- /dev/null
+++ b/src/BitPaySDK/Model/Subscription/Item.php
@@ -0,0 +1,153 @@
+<?php
+
+/**
+ * Copyright (c) 2025 BitPay
+ **/
+
+declare(strict_types=1);
+
+/*
+ * @author BitPay Integrations <integrations@bitpay.com>
+ * @license http://www.opensource.org/licenses/mit-license.php MIT
+ */
+
+namespace BitPaySDK\Model\Subscription;
+
+/**
+ * @see https://developer.bitpay.com/reference/bills REST API Bills
+ *
+ * @package BitPaySDK\Model\Subscription
+ * @author BitPay Integrations <integrations@bitpay.com>
+ * @license http://www.opensource.org/licenses/mit-license.php MIT
+ */
+
+#[\AllowDynamicProperties]
+class Item
+{
+    protected ?string $id = null;
+    protected ?string $description = null;
+    protected ?float $price = null;
+    protected ?int $quantity = null;
+
+    public function __construct()
+    {
+    }
+
+    /**
+     * Gets id.
+     *
+     * @return string|null the id
+     */
+    public function getId(): ?string
+    {
+        return $this->id;
+    }
+
+    /**
+     * Sets id.
+     *
+     * @param string $id the id
+     */
+    public function setId(string $id): void
+    {
+        $this->id = $id;
+    }
+
+    /**
+     * Gets Line item description
+     *
+     * @return string|null the description
+     */
+    public function getDescription(): ?string
+    {
+        return $this->description;
+    }
+
+    /**
+     * Sets Line item description
+     *
+     * @param string $description the description
+     */
+    public function setDescription(string $description): void
+    {
+        $this->description = $description;
+    }
+
+    /**
+     * Gets Line item unit price for the corresponding currency
+     *
+     * @return float|null the price
+     */
+    public function getPrice(): ?float
+    {
+        return $this->price;
+    }
+
+    /**
+     * Sets Line item unit price for the corresponding currency
+     *
+     * @param float $price the price
+     */
+    public function setPrice(float $price): void
+    {
+        $this->price = $price;
+    }
+
+    /**
+     * Gets Line item number of units
+     *
+     * @return int|null the quantity
+     */
+    public function getQuantity(): ?int
+    {
+        return $this->quantity;
+    }
+
+    /**
+     * Sets Line item number of units
+     *
+     * @param int $quantity the quantity
+     */
+    public function setQuantity(int $quantity): void
+    {
+        $this->quantity = $quantity;
+    }
+
+    /**
+     * @param array $item List of line items
+     * @return Item
+     */
+    public static function createFromArray(array $item): Item
+    {
+        $instance = new self();
+
+        foreach ($item as $key => $value) {
+            $instance->{$key} = $value;
+        }
+
+        return $instance;
+    }
+
+    /**
+     * Gets Item data as array
+     *
+     * @return array item data as array
+     */
+    public function toArray(): array
+    {
+        $elements = [
+            'id'          => $this->getId(),
+            'description' => $this->getDescription(),
+            'price'       => $this->getPrice(),
+            'quantity'    => $this->getQuantity(),
+        ];
+
+        foreach ($elements as $key => $value) {
+            if (empty($value)) {
+                unset($elements[$key]);
+            }
+        }
+
+        return $elements;
+    }
+}
diff --git a/src/BitPaySDK/Model/Subscription/Subscription.php b/src/BitPaySDK/Model/Subscription/Subscription.php
new file mode 100644
index 00000000..80454ebc
--- /dev/null
+++ b/src/BitPaySDK/Model/Subscription/Subscription.php
@@ -0,0 +1,270 @@
+<?php
+
+/**
+ * Copyright (c) 2025 BitPay
+ **/
+
+declare(strict_types=1);
+
+namespace BitPaySDK\Model\Subscription;
+
+use BitPaySDK\Env;
+
+/**
+ * @package BitPaySDK\Model\Subscription
+ * @author BitPay Integrations <integrations@bitpay.com>
+ * @license http://www.opensource.org/licenses/mit-license.php MIT
+ */
+class Subscription
+{
+    protected ?string $id = null;
+    protected ?string $status = null;
+    protected BillData $billData;
+    protected ?string $merchant = null;
+    protected ?string $schedule = null;
+    protected ?string $nextDelivery = null;
+    protected ?string $createdDate = null;
+    protected ?string $token = null;
+
+    /**
+     * Constructor, create a minimal request Subscription object.
+     *
+     * @param BillData|null $billData Object containing the recurring billing information.
+     * @param string|null $schedule Schedule of recurring billing due dates
+     */
+    public function __construct(?BillData $billData = null, ?string $schedule = SubscriptionSchedule::MONTHLY)
+    {
+        $this->billData = $billData ?: new BillData();
+        $this->schedule = $schedule;
+    }
+
+    /**
+     * Get subscription data as array
+     *
+     * @return array subscription data as array
+     */
+    public function toArray(): array
+    {
+        $elements = [
+            'id' => $this->getId(),
+            'status' => $this->getStatus(),
+            'billData' => $this->getBillData()->toArray(),
+            'merchant' => $this->getMerchant(),
+            'schedule' => $this->getSchedule(),
+            'nextDelivery' => $this->getNextDelivery(),
+            'createdDate' => $this->getCreatedDate(),
+            'token' => $this->getToken(),
+        ];
+
+        foreach ($elements as $key => $value) {
+            if (empty($value)) {
+                unset($elements[$key]);
+            }
+        }
+
+        return $elements;
+    }
+
+    /**
+     * Get Subscription id
+     *
+     * Subscription resource id
+     *
+     * @return string|null the id
+     */
+    public function getId(): ?string
+    {
+        return $this->id;
+    }
+
+    /**
+     * Set Subscription id
+     *
+     * Subscription resource id
+     *
+     * @param string $id Subscription resource id
+     */
+    public function setId(string $id): void
+    {
+        $this->id = $id;
+    }
+
+    /**
+     * Get Subscription status
+     *
+     * @return string|null the status
+     * @see SubscriptionStatus
+     *
+     */
+    public function getStatus(): ?string
+    {
+        return $this->status;
+    }
+
+    /**
+     * Set Subscription status
+     *
+     * @param string $status Subscription's status
+     * @see SubscriptionStatus
+     *
+     */
+    public function setStatus(string $status): void
+    {
+        $this->status = $status;
+    }
+
+    /**
+     * Get Subscription billData
+     *
+     * Object containing the recurring billing information
+     *
+     * @return BillData
+     * @see BillData
+     */
+    public function getBillData(): BillData
+    {
+        return $this->billData;
+    }
+
+    /**
+     * Set Subscription billData
+     *
+     * @param BillData $billData Object containing the recurring billing information.
+     * @return void
+     * @see BillData
+     */
+    public function setBillData(BillData $billData): void
+    {
+        $this->billData = $billData;
+    }
+
+    /**
+     * Get Subscription merchant
+     *
+     * Internal identifier for BitPay, this field can be ignored by the merchants.
+     *
+     * @return string|null the merchant
+     */
+    public function getMerchant(): ?string
+    {
+        return $this->merchant;
+    }
+
+    /**
+     * Set Subscription merchant
+     *
+     * Internal identifier for BitPay, this field can be ignored by the merchants.
+     *
+     * @param string $merchant Internal identifier for BitPay
+     */
+    public function setMerchant(string $merchant): void
+    {
+        $this->merchant = $merchant;
+    }
+
+    /**
+     * Get Subscription created date
+     *
+     * Date and time of Subscription creation, ISO-8601 format yyyy-mm-ddThh:mm:ssZ. (UTC)
+     *
+     * @return string|null the created date
+     * @see Env::BITPAY_DATETIME_FORMAT
+     */
+    public function getCreatedDate(): ?string
+    {
+        return $this->createdDate;
+    }
+
+    /**
+     * Set Subscription created date
+     *
+     * Date and time of Subscription creation, ISO-8601 format yyyy-mm-ddThh:mm:ssZ. (UTC)
+     *
+     * @param string $createdDate Subscription's created date
+     * @see Env::BITPAY_DATETIME_FORMAT
+     */
+    public function setCreatedDate(string $createdDate): void
+    {
+        $this->createdDate = $createdDate;
+    }
+
+    /**
+     * Gets token
+     *
+     * API token for subscription resource. This token is actually derived from the API token used to create the
+     * subscription and is tied to the specific resource id created.
+     *
+     * @return string|null the token
+     */
+    public function getToken(): ?string
+    {
+        return $this->token;
+    }
+
+    /**
+     * Set Subscription token
+     *
+     * API token for subscription resource. This token is actually derived from the API token used to create the
+     * subscription and is tied to the specific resource id created.
+     *
+     * @param string $token API token for subscription resource
+     */
+    public function setToken(string $token): void
+    {
+        $this->token = $token;
+    }
+
+    /**
+     * Get Subscription schedule
+     *
+     * @return string|null
+     * @see SubscriptionSchedule
+     *
+     */
+    public function getSchedule(): ?string
+    {
+        return $this->schedule;
+    }
+
+    /**
+     * Set Subscription schedule
+     *
+     * @param string $schedule
+     * @return void
+     * @see SubscriptionSchedule
+     *
+     */
+    public function setSchedule(string $schedule): void
+    {
+        $this->schedule = $schedule;
+    }
+
+    /**
+     * Get Subscription's next delivery date
+     *
+     * Default is current date & time, ISO-8601 format yyyy-mm-ddThh:mm:ssZ (UTC). Current or past date indicates that
+     * the bill can be delivered immediately. BitPay may modify the hh:mm:ss values in order to distribute deliveries
+     * evenly throughout the day.
+     *
+     * @return string|null Subscription's next delivery date
+     */
+    public function getNextDelivery(): ?string
+    {
+        return $this->nextDelivery;
+    }
+
+    /**
+     * Set Subscription's next delivery date
+     *
+     * Default is current date & time, ISO-8601 format yyyy-mm-ddThh:mm:ssZ (UTC). Current or past date indicates that
+     * the bill can be delivered immediately. BitPay may modify the hh:mm:ss values in order to distribute deliveries
+     * evenly throughout the day.
+     *
+     * @param string $nextDelivery Subscription's next delivery date
+     * @return void
+     */
+    public function setNextDelivery(string $nextDelivery): void
+    {
+        $this->nextDelivery = $nextDelivery;
+    }
+}
diff --git a/src/BitPaySDK/Model/Subscription/SubscriptionSchedule.php b/src/BitPaySDK/Model/Subscription/SubscriptionSchedule.php
new file mode 100644
index 00000000..92c75a18
--- /dev/null
+++ b/src/BitPaySDK/Model/Subscription/SubscriptionSchedule.php
@@ -0,0 +1,46 @@
+<?php
+
+/**
+ * Copyright (c) 2025 BitPay
+ */
+
+/**
+ * @author BitPay Integrations <integrations@bitpay.com>
+ * @license http://www.opensource.org/licenses/mit-license.php MIT
+ */
+
+namespace BitPaySDK\Model\Subscription;
+
+/**
+ * Schedule of repeat bill due dates. Can be `weekly`, `monthly`, `quarterly`, `yearly`, or a simple cron expression
+ * specifying seconds, minutes, hours, day of month, month, and day of week. BitPay maintains the difference between
+ * the due date and the delivery date in all subsequent, automatically-generated bills.
+ *
+ * +-------------- second (0 - 59)
+ *
+ * | +------------ minute (0 - 59)
+ *
+ * | | +---------- hour (0 - 23)
+ *
+ * | | | +-------- day of month (1 - 31)
+ *
+ * | | | | +------ month (1 - 12)
+ *
+ * | | | | | +---- day of week (0 - 6) (Sunday=0 or 7)
+ *
+ * | | | | | |
+ *
+ * \* * * * * Cron expression
+ *
+ * @package BitPaySDK\Model\Subscription
+ * @author BitPay Integrations <integrations@bitpay.com>
+ * @license http://www.opensource.org/licenses/mit-license.php MIT
+ * @see https://developer.bitpay.com/reference/subscriptions Subscriptions
+ */
+interface SubscriptionSchedule
+{
+    public const WEEKLY = "weekly";
+    public const MONTHLY = "monthly";
+    public const QUARTERLY = "quarterly";
+    public const YEARLY = "yearly";
+}
diff --git a/src/BitPaySDK/Model/Subscription/SubscriptionStatus.php b/src/BitPaySDK/Model/Subscription/SubscriptionStatus.php
new file mode 100644
index 00000000..5c08977f
--- /dev/null
+++ b/src/BitPaySDK/Model/Subscription/SubscriptionStatus.php
@@ -0,0 +1,28 @@
+<?php
+
+/**
+ * Copyright (c) 2025 BitPay
+ **/
+
+/**
+ * @author BitPay Integrations <integrations@bitpay.com>
+ * @license http://www.opensource.org/licenses/mit-license.php MIT
+ */
+
+namespace BitPaySDK\Model\Subscription;
+
+/**
+ * Subscription object status. Can be `draft`, `active` or `cancelled`.
+ * Subscriptions in `active` state will create new Bills on the `nextDelivery` date.
+ *
+ * @package BitPaySDK\Model\Subscription
+ * @author BitPay Integrations <integrations@bitpay.com>
+ * @license http://www.opensource.org/licenses/mit-license.php MIT
+ * @see https://developer.bitpay.com/reference/subscriptions Subscriptions
+ */
+interface SubscriptionStatus
+{
+    public const DRAFT = "draft";
+    public const ACTIVE = "active";
+    public const CANCELLED = "cancelled";
+}
diff --git a/test/functional/BitPaySDK/SubscriptionClientTest.php b/test/functional/BitPaySDK/SubscriptionClientTest.php
new file mode 100644
index 00000000..2b2d7dba
--- /dev/null
+++ b/test/functional/BitPaySDK/SubscriptionClientTest.php
@@ -0,0 +1,99 @@
+<?php
+
+/**
+ * Copyright (c) 2019 BitPay
+ **/
+
+declare(strict_types=1);
+
+namespace BitPaySDK\Functional;
+
+use BitPaySDK\Model\Subscription\Item;
+use BitPaySDK\Model\Currency;
+use BitPaySDK\Model\Subscription\BillData;
+use BitPaySDK\Model\Subscription\Subscription;
+use BitPaySDK\Model\Subscription\SubscriptionSchedule;
+use BitPaySDK\Model\Subscription\SubscriptionStatus;
+
+class SubscriptionClientTest extends AbstractClientTestCase
+{
+    public function testCreateSubscription(): void
+    {
+        $subscription = $this->getSubscriptionExample();
+        $subscription = $this->client->createSubscription($subscription);
+
+        // Subscription tests
+        self::assertEquals(SubscriptionStatus::DRAFT, $subscription->getStatus());
+        self::assertEquals(SubscriptionSchedule::MONTHLY, $subscription->getSchedule());
+
+        // BillData tests
+        self::assertEquals(3.0, $subscription->getBillData()->getItems()[0]->getPrice());
+        self::assertEquals(2, $subscription->getBillData()->getItems()[0]->getQuantity());
+        self::assertEquals(1, $subscription->getBillData()->getItems()[1]->getQuantity());
+        self::assertEquals(7.0, $subscription->getBillData()->getItems()[1]->getPrice());
+        self::assertEquals("Test Item 1", $subscription->getBillData()->getItems()[0]->getDescription());
+        self::assertEquals("Test Item 2", $subscription->getBillData()->getItems()[1]->getDescription());
+        self::assertEquals(Currency::USD, $subscription->getBillData()->getCurrency());
+    }
+
+    public function testGetSubscription(): void
+    {
+        $subscription = $this->getSubscriptionExample();
+        $subscription = $this->client->createSubscription($subscription);
+        $subscription = $this->client->getSubscription($subscription->getId());
+
+        self::assertEquals(SubscriptionStatus::DRAFT, $subscription->getStatus());
+        self::assertCount(2, $subscription->getBillData()->getItems());
+        self::assertEquals(Currency::USD, $subscription->getBillData()->getCurrency());
+        self::assertEquals('billData1234-ABCD', $subscription->getBillData()->getNumber());
+        self::assertEquals('john.doe@example.com', $subscription->getBillData()->getEmail());
+    }
+
+    public function testGetSubscriptions(): void
+    {
+        $subscriptions = $this->client->getSubscriptions();
+
+        self::assertNotNull($subscriptions);
+        self::assertIsArray($subscriptions);
+        $isCount = count($subscriptions) > 0;
+        self::assertTrue($isCount);
+    }
+
+    public function testUpdateSubscription(): void
+    {
+        $subscription = $this->getSubscriptionExample();
+        $subscription = $this->client->createSubscription($subscription);
+        $subscription = $this->client->getSubscription($subscription->getId());
+
+        $bill = $subscription->getBillData();
+        $bill->setEmail("jane.doe@example.com");
+        $subscription->setBillData($bill);
+
+        $subscription = $this->client->updateSubscription($subscription, $subscription->getId());
+
+        self::assertEquals("jane.doe@example.com", $subscription->getBillData()->getEmail());
+    }
+
+    private function getSubscriptionExample(): Subscription
+    {
+        return new Subscription($this->getBillDataExample());
+    }
+
+    private function getBillDataExample(): BillData
+    {
+        $items = [];
+        $item = new Item();
+        $item->setPrice(3.0);
+        $item->setQuantity(2);
+        $item->setDescription("Test Item 1");
+        $items[] = $item;
+
+        $item = new Item();
+        $item->setPrice(7.0);
+        $item->setQuantity(1);
+        $item->setDescription("Test Item 2");
+        $items[] = $item;
+
+        return new BillData("billData1234-ABCD", Currency::USD, "john.doe@example.com", null, $items);
+    }
+}