File Colorado Form 104X
Prepare Form 104X now with TaxAct
E-Filing Options: TaxAct - e-File.com
Colorado Form 104X is a tax return document for residents 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 Colorado 104 tax documents. When filling out your 104X form, you will be given the chance to explain why you are making an amendment in your tax return.