Modification of corporation tax returns and filing of previous years' returns
Here you will find everything you need to know if you need to amend a return or file a return from previous years.All these returns must be submitted electronically
How to modify a tax return already filed
How to correct a mistake in your return:amending and complementary documents
How to file a return for previous years
We inform you of everything you need to know about How to file a tax return for previous years.