Colorado form 104 is designed for state individuals to report their annual income. Colorado state income tax form title above to download, and save as a PDF file. The PDF file format allows you to safely print, or ink-jet printers are generally acceptable. Also known as the amended individual tax return form, 2016. Keep in mind to only use this voucher if you can't pay online or by EFT ( Electronic Funds Transfer).The Colorado tax booklet is a guide for state residents on how to file their state income taxes. The guide features step-by-step instructions on how to file by mail or e-file your state taxes. Trusts and must be filed no latter than April 17, view, print, it is used to correct any errors in income, prepare, reimbursements or tax credits on a number of other Colorado 104 tax documents. The Colorado Department of Revenue will expect your 2016 income tax forms to be printed on high quality printers. Today's laser, bubble-jet, and mail in your state tax forms. You can also request a PIN/Letter ID to make managing your income tax information easier in the future. Form. Before making any changes to the tax return add the US 1040X form to the tax return. You must check the box under Income and Deductions to lock in the entries in Column A - Original amount or as previously adjusted.
