diff --git a/django/contrib/localflavor/pl/forms.py b/django/contrib/localflavor/pl/forms.py
index ffa9ec4087..3e8d73f0f2 100644
--- a/django/contrib/localflavor/pl/forms.py
+++ b/django/contrib/localflavor/pl/forms.py
@@ -122,18 +122,18 @@ class PLNationalIDCardNumberField(RegexField):
 class PLNIPField(RegexField):
     """
     A form field that validates as Polish Tax Number (NIP).
-    Valid forms are: XXX-XXX-YY-YY or XX-XX-YYY-YYY.
+    Valid forms are: XXX-YYY-YY-YY, XXX-YY-YY-YYY or XXXYYYYYYY.
 
     Checksum algorithm based on documentation at
     http://wipos.p.lodz.pl/zylla/ut/nip-rego.html
     """
     default_error_messages = {
-        'invalid': _(u'Enter a tax number field (NIP) in the format XXX-XXX-XX-XX or XX-XX-XXX-XXX.'),
+        'invalid': _(u'Enter a tax number field (NIP) in the format XXX-XXX-XX-XX, XXX-XX-XX-XXX or XXXXXXXXXX.'),
         'checksum': _(u'Wrong checksum for the Tax Number (NIP).'),
     }
 
     def __init__(self, max_length=None, min_length=None, *args, **kwargs):
-        super(PLNIPField, self).__init__(r'^\d{3}-\d{3}-\d{2}-\d{2}$|^\d{2}-\d{2}-\d{3}-\d{3}$',
+        super(PLNIPField, self).__init__(r'^\d{3}-\d{3}-\d{2}-\d{2}$|^\d{3}-\d{2}-\d{2}-\d{3}$|^\d{10}$',
             max_length, min_length, *args, **kwargs)
 
     def clean(self,value):
diff --git a/docs/ref/contrib/localflavor.txt b/docs/ref/contrib/localflavor.txt
index 4671906fa1..1593598ba3 100644
--- a/docs/ref/contrib/localflavor.txt
+++ b/docs/ref/contrib/localflavor.txt
@@ -960,8 +960,8 @@ Poland (``pl``)
 
 .. class:: pl.forms.PLNIPField
 
-    A form field that validates input as a Polish Tax Number (NIP). Valid
-    formats are XXX-XXX-XX-XX or XX-XX-XXX-XXX. The checksum algorithm used
+    A form field that validates input as a Polish Tax Number (NIP). Valid formats
+    are XXX-XXX-XX-XX, XXX-XX-XX-XXX or XXXXXXXXXX. The checksum algorithm used
     for NIPs is documented at http://wipos.p.lodz.pl/zylla/ut/nip-rego.html.
 
 .. class:: pl.forms.PLCountySelect
diff --git a/tests/regressiontests/localflavor/pl/tests.py b/tests/regressiontests/localflavor/pl/tests.py
index 8c7af38397..52154f8804 100644
--- a/tests/regressiontests/localflavor/pl/tests.py
+++ b/tests/regressiontests/localflavor/pl/tests.py
@@ -420,14 +420,16 @@ class PLLocalFlavorTests(SimpleTestCase):
         self.assertFieldOutput(PLPostalCodeField, valid, invalid)
 
     def test_PLNIPField(self):
-        error_format = [u'Enter a tax number field (NIP) in the format XXX-XXX-XX-XX or XX-XX-XXX-XXX.']
+        error_format = [u'Enter a tax number field (NIP) in the format XXX-XXX-XX-XX, XXX-XX-XX-XXX or XXXXXXXXXX.']
         error_checksum = [u'Wrong checksum for the Tax Number (NIP).']
         valid = {
-            '64-62-414-124': '6462414124',
             '646-241-41-24': '6462414124',
+            '646-24-14-124': '6462414124',
+            '6462414124': '6462414124',
         }
         invalid = {
             '43-343-234-323': error_format,
+	    '64-62-414-124': error_format,
             '646-241-41-23': error_checksum,
         }
         self.assertFieldOutput(PLNIPField, valid, invalid)