File Arizona Form 140X
Prepare Arizona Form 140X now with TaxAct
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Arizona Form 140X is a tax return document for taxpayers who need to amend their previous return. Also known as the amended individual tax return form, it is used to correct any errors in income, reimbursements or tax credits on a number of other Arizona 140 tax documents. When filling out your 140X form, you will be given the chance to explain why you are making an amendment in your tax return.