diff --git a/TSCurrencyTextField/TSCurrencyTextField.h b/TSCurrencyTextField/TSCurrencyTextField.h
index afeff79..2064eec 100644
--- a/TSCurrencyTextField/TSCurrencyTextField.h
+++ b/TSCurrencyTextField/TSCurrencyTextField.h
@@ -13,5 +13,6 @@
 @property (nonatomic) NSNumberFormatter* currencyNumberFormatter;
 
 @property (nonatomic) NSNumber* amount;
+@property (nonatomic, assign) NSUInteger maximumLength;
 
 @end
diff --git a/TSCurrencyTextField/TSCurrencyTextField.m b/TSCurrencyTextField/TSCurrencyTextField.m
index 6c4b0f5..7c30d3b 100644
--- a/TSCurrencyTextField/TSCurrencyTextField.m
+++ b/TSCurrencyTextField/TSCurrencyTextField.m
@@ -43,6 +43,7 @@ - (id) initWithFrame: (CGRect) frame
 
 - (void) TSCurrencyTextField_commonInit
 {
+    _maximumLength = 0;
     _invalidInputCharacterSet = [[NSCharacterSet decimalDigitCharacterSet] invertedSet];
 
     _currencyNumberFormatter = [[NSNumberFormatter alloc] init];
@@ -155,7 +156,16 @@ - (BOOL) textField: (TSCurrencyTextField *) textField shouldChangeCharactersInRa
     int distanceFromEnd = textField.text.length - (range.location + range.length);
     
     NSString* changed = [textField.text stringByReplacingCharactersInRange: range withString: string];
-    [textField setText: changed];
+    if (textField.maximumLength > 0 && changed.length > textField.maximumLength)
+      return NO;
+  
+    if ([self.delegate respondsToSelector:@selector(textField:shouldChangeCharactersInRange:replacementString:)])
+    {
+      if ([self.delegate textField:textField shouldChangeCharactersInRange:range replacementString:string])
+        [textField setText:changed];
+    }
+    else
+      [textField setText:changed];
     
     int pos = textField.text.length - distanceFromEnd;
     if ( pos >= 0 && pos <= textField.text.length )