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
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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.