diff --git a/bankbarcode/cuaderno57.py b/bankbarcode/cuaderno57.py
index d2f5a1c..dea428b 100644
--- a/bankbarcode/cuaderno57.py
+++ b/bankbarcode/cuaderno57.py
@@ -1,4 +1,5 @@
 # coding=utf-8
+from datetime import datetime
 
 from bankbarcode import BankBarcode
 from decimal import Decimal
@@ -76,6 +77,32 @@ def _check_amount(self, amount):
         description = 'amount lenth should be 10'
         return self._check_length(name, value, expected_length, description)
 
+    def _check_due_date(self, due_date, suffix):
+        """
+        Check due date (Fecha limite) and suffix
+
+        :param due_date: Due Date (Fecha limite)
+        :return: True if due date is a Datetime or string with format '%Y-%m-%d'
+                 and suffix bigger than 499, otherwise False
+        """
+        name = 'due_date'
+        if due_date is None:
+            return True
+        if isinstance(due_date, basestring):
+            try:
+                date = datetime.strptime(due_date, '%Y-%m-%d')
+            except:
+                raise ValueError(
+                    "{} must be string with format '%Y-%m-%d'".format(name))
+        else:
+            if not isinstance(due_date, datetime):
+                raise ValueError('{} must be a Datetime'.format(name))
+
+        if self._check_suffix(suffix) and int(suffix) <= 499:
+            raise ValueError('suffix with due date must be bigger than 499')
+        return True
+
+
 
 class Recibo507(Recibo):
     """
@@ -83,7 +110,8 @@ class Recibo507(Recibo):
         Autoservicio, V2001)
     """
 
-    def __init__(self, entity, suffix, ref, notice, amount):
+    def __init__(self, entity=None, suffix=None, ref=None, notice=None,
+                 amount=None, due_date=None):
         """
         Create and object of Recibo507 with checked values.
 
@@ -92,6 +120,7 @@ def __init__(self, entity, suffix, ref, notice, amount):
         :param ref: the reference code (Número de referencia)
         :param notice: the notice identification code (Identificación)
         :param amount: the amount (Importe)
+        :param due_date: Due date (Fecha limite)
         :return: an object of Recibo507
         """
         self.entity = entity
@@ -99,6 +128,7 @@ def __init__(self, entity, suffix, ref, notice, amount):
         self.ref = ref
         self.notice = notice
         self.amount = amount
+        self.due_date = due_date
 
     @property
     def entity(self):
@@ -199,6 +229,26 @@ def amount(self, value):
         if self._check_amount(unicode_value):
             self._amount = unicode_value
 
+    @property
+    def due_date(self):
+        """
+        Due date (Fecha limite)
+
+        :return: Datetime with Due date
+        """
+        return self._due_date
+
+    @due_date.setter
+    def due_date(self, due_date):
+        if due_date is None:
+            self._due_date = None
+        else:
+            if self._check_due_date(due_date, self.suffix):
+                if isinstance(due_date, basestring):
+                    due_date = datetime.strptime(due_date, '%Y-%m-%d')
+                self._due_date = due_date
+                self._notice = self._due_date.strftime('%d%m%y')
+
     def amount100(self):
         """
         Remove the decimal point of the amount (Importe)
diff --git a/spec/20150115_FOLLETO57.pdf b/spec/20150115_FOLLETO57.pdf
new file mode 100644
index 0000000..e3bccc9
Binary files /dev/null and b/spec/20150115_FOLLETO57.pdf differ
diff --git a/spec/cuaderno57_Recibo507_due_date_spec.py b/spec/cuaderno57_Recibo507_due_date_spec.py
new file mode 100644
index 0000000..9fcf148
--- /dev/null
+++ b/spec/cuaderno57_Recibo507_due_date_spec.py
@@ -0,0 +1,55 @@
+from datetime import datetime
+
+from expects import expect, equal, raise_error
+from bankbarcode.cuaderno57 import Recibo507
+
+with description('Recibo507 with due date of cuaderno57'):
+    with it('Validate than suffix is less than 500'):
+        def callback():
+            entity = '01234567'
+            suffix = '023'
+            ref = '12345678901'
+            notice = '123456'
+            amount = '6543.21'
+            due_date = datetime(2015, 11, 01)
+            recibo = Recibo507(entity, suffix, ref, notice, amount, due_date)
+        expect(callback).to(
+            raise_error(ValueError,
+                        'suffix with due date must be bigger than 499'))
+
+    with it('Overwrites introduced notice for due date DDMMAA'):
+        entity = '22350466'
+        suffix = '501'
+        ref = '00000000015'
+        notice = '300815'
+        amount = '53.98'
+        due_date = datetime(2015, 11, 01)
+        recibo = Recibo507(entity, suffix, ref, notice, amount, due_date)
+        expect(recibo.notice).not_to(equal(notice))
+        expect(recibo.notice).to(equal(due_date.strftime('%d%m%y')))
+
+    with it('accomplish the example of cuaderno57 with due date Datetime'):
+        entity = '22350466'
+        suffix = '501'
+        ref = '00000000015'
+        notice = '300815'
+        amount = '53.98'
+        checksum = '27'
+        due_date = datetime(2015, 11, 01)
+        recibo = Recibo507(entity, suffix, ref, notice, amount, due_date)
+        expect(recibo.notice).to(equal(due_date.strftime('%d%m%y')))
+        expect(recibo.checksum()).to(equal(checksum))
+
+    with it('accomplish the example of cuaderno57 with due date string'):
+        entity = '22350466'
+        suffix = '501'
+        ref = '00000000015'
+        notice = '300815'
+        amount = '53.98'
+        checksum = '27'
+        due_date = '2015-11-01'
+        recibo = Recibo507(entity, suffix, ref, notice, amount, due_date)
+        expect(recibo.notice).to(equal(
+            datetime.strptime(due_date, '%Y-%m-%d').strftime('%d%m%y'))
+        )
+        expect(recibo.checksum()).to(equal(checksum))
diff --git a/spec/cuaderno57_Recibo507_input_spec.py b/spec/cuaderno57_Recibo507_input_spec.py
index a06dfe4..071068a 100644
--- a/spec/cuaderno57_Recibo507_input_spec.py
+++ b/spec/cuaderno57_Recibo507_input_spec.py
@@ -129,3 +129,39 @@ def callback():
                 self.recibo507._check_amount(float_value)
 
             expect(callback).to(raise_error(ValueError, 'amount have more than 2 decimals'))
+
+    with context('Check amount'):
+
+        with it('return True if amount is a unicode with less than 100000000 with 2 decimals'):
+            value = unicode(round(uniform(0, 99999999.99), 2))
+            expect(self.recibo507._check_amount(value)).to(be_true)
+
+        with it('return True is amount is a int less than 100000000'):
+            value = randint(0, 99999999)
+            expect(self.recibo507._check_amount(value)).to(be_true)
+
+        with it('raise a value error if amount isn\'t less than 100000000'):
+            big_value = unicode(round(uniform(100000000, maxint), 2))
+
+            def callback():
+                self.recibo507._check_amount(big_value)
+
+            expect(callback).to(raise_error(ValueError, 'amount is too big'))
+
+        with it('raise a value error if amount have more than 2 decimals'):
+            float_value = unicode(round(random(), randint(3, 10)))
+
+            def callback():
+                self.recibo507._check_amount(float_value)
+
+            expect(callback).to(raise_error(ValueError, 'amount have more than 2 decimals'))
+
+    with context('Check due date'):
+        with it('raise a value error if due date is not Datetime'):
+
+            def callback():
+                self.recibo507.amount = 10
+                self.recibo507.due_date = 234
+
+            expect(callback).to(raise_error(ValueError,
+                                            'due_date must be a Datetime'))
diff --git a/spec/cuaderno57_Recibo_input_spec.py b/spec/cuaderno57_Recibo_input_spec.py
index c79f3f5..400b0cd 100644
--- a/spec/cuaderno57_Recibo_input_spec.py
+++ b/spec/cuaderno57_Recibo_input_spec.py
@@ -1,4 +1,5 @@
 from sys import maxint
+from datetime import datetime
 from expects import expect, be_true, raise_error
 from random import randint, uniform, random
 from bankbarcode.cuaderno57 import Recibo
@@ -123,3 +124,47 @@ def callback():
                 self.recibo._check_amount(float_value)
 
             expect(callback).to(raise_error(ValueError, 'amount have more than 2 decimals'))
+
+    with context('Check due date'):
+
+        with it('return True if due date is a Datetime and suffix > 499'):
+            value = datetime(2015, 1, 1)
+            expect(
+                self.recibo._check_due_date(value, '500')
+            ).to(be_true)
+
+        with it('return True if due date is string with format %Y-%m-%d and suffix > 499'):
+            value = '2015-01-01'
+            expect(
+                self.recibo._check_due_date(value, '500')
+            ).to(be_true)
+
+        with it('raise a value error if due date isn\'t Datetime'):
+            value = 2015
+            def callback():
+                self.recibo._check_due_date(value, '500')
+            expect(callback).to(raise_error(ValueError,
+                                            'due_date must be a Datetime'))
+
+        with it('raise a value error if due date isn\'t string with format %Y-%m-%d'):
+            value = 'qwerty'
+            def callback():
+                self.recibo._check_due_date(value, '500')
+            expect(callback).to(raise_error(ValueError,
+                                            "due_date must be string with format '%Y-%m-%d'"))
+
+        with it('raise a value error due date is datetime and suffix isn\'t bigger than 499'):
+            value = datetime(2015, 1, 1)
+            suffix = '499'
+            def callback():
+                self.recibo._check_due_date(value, suffix)
+            expect(callback).to(raise_error(ValueError,
+                                            'suffix with due date must be bigger than 499'))
+
+        with it('raise a value error due date is string if suffix isn\'t bigger than 499'):
+            value = '2015-01-01'
+            suffix = '499'
+            def callback():
+                self.recibo._check_due_date(value, suffix)
+            expect(callback).to(raise_error(ValueError,
+                                            'suffix with due date must be bigger than 499'))
\ No newline at end of file