diff --git a/issue7276.diff b/issue7276.diff
new file mode 100644
index 0000000..7e365cf
--- /dev/null
+++ b/issue7276.diff
@@ -0,0 +1,21 @@
+diff -r 0447f28ab266 trytond/trytond/modules/account/move.py
+--- a/trytond/trytond/modules/account/move.py	Wed Sep 12 15:56:58 2018 +0200
++++ b/trytond/trytond/modules/account/move.py	Wed Sep 12 16:09:55 2018 +0200
+@@ -635,7 +635,6 @@
+     party_required = fields.Function(fields.Boolean('Party Required'),
+         'on_change_with_party_required')
+     maturity_date = fields.Date('Maturity Date',
+-        states=_states, depends=_depends,
+         help='This field is used for payable and receivable lines. \n'
+         'You can put the limit date for the payment.')
+     state = fields.Selection([
+@@ -668,7 +667,8 @@
+     @classmethod
+     def __setup__(cls):
+         super(Line, cls).__setup__()
+-        cls._check_modify_exclude = {'reconciliation'}
++        cls._check_modify_exclude = {
++            'maturity_date', 'reconciliation', 'tax_lines'}
+         cls._reconciliation_modify_disallow = {
+             'account', 'debit', 'credit', 'party',
+             }
diff --git a/series b/series
index 518447e..4ac61d0 100644
--- a/series
+++ b/series
@@ -3,6 +3,7 @@ logging_jsonrpc_exeption.diff # [trytond] logging JSONRPC Exception
 domain_validation_warning.diff # [trytond] Increase the verbosity of domain_validation_error message
 
 issue3932.diff # [account] rule account move and account move line by company
+issue7276.diff # [account] Allow to edit maturity date and tax lines
 
 issue6253.diff # [account_invoice] add invoice type criteria
 issue4506.diff # [account_invoice] Add credit invoices keyword from account.invoice
@@ -15,5 +16,5 @@ search_warehouse.diff #[stock] search function for warehouse.
 issue240_631.diff # [stock_lot] stock_by_locations get all locations with that lot.
 issue10467.diff # stock_lot: add lot to grouping if lot it's required on product
 purchase_request.diff # purchase_request: as shippment_date it's not required we need to ensure operation could be done
-improve_performance_on_try_assign.diff # [stock] change browse of product to get default_uom to pysql	
+improve_performance_on_try_assign.diff # [stock] change browse of product to get default_uom to pysql
 commission.diff # [commission] I can't override property