Correcting a return
Any changes to New Mexico taxable income, credits or rebates, and changes to federal taxable income require an amended New Mexico personal income tax return for the same year.
For tax years 2005 to present, file your amended return on the PIT-X form for that tax year. For example, to amend a return for the 2005 tax year, use Form 2005 PIT-X; to amend a return for tax year 2006, use Form 2006 PIT-X, etc.
For tax years beginning prior to January 1, 2005, there is no special form. File amended returns using the PIT-1 form for the appropriate tax year. Mark the “amended” checkbox or write “amended” at the top of the form. For these years do not file an amended return on Form PIT-X. The Department cannot accept a return filed on Form PIT-X for a year that begins before January 1, 2005.