Amended return
In short
A corrected return for a period already filed. The TPT-2 marks it with a checkbox rather than a separate form.
In full
An amended return corrects a period already filed. There is no separate amendment form — the TPT-2 carries a checkbox at the top marking the return as amended, and the corrected return replaces the original for that period.
Contracting produces two recurring reasons to amend. A contract that converts from MRRA to Modification changes what should have been reported and under which business code, and a contractor who buys materials exempt against a threshold that later moves may have reported a retail equivalent that no longer belongs.
Where the correction is a reclassification, amending the return is not the same thing as recovering the tax. The credit for materials tax already paid runs through the MRRA Credit Request, which is a separate submission with its own six-month expectation.
ADOR states that where a taxpayer determines they have filed incorrectly they should file amended returns, and that penalty abatement may be requested and is granted under the rules in place for abatement.
One trap is in the deduction codes. A deduction code that has been retired is disallowed on an amended return for periods after its expiry, and it may be disallowed even where the amendment is being filed for an unrelated reason.
Arizona Form TPT-2 (ADOR 11249, 5/19); ADOR Modification Contracting