Taxpayers who did not submit their income tax filing by the April deadline are reminded that the extension due date for Colorado's 2014 income tax filing is Thursday, Oct. 15.
Complete the paper Colorado 104 form and appropriate schedules first. Then enter the information into Revenue Online and submit your return. Filing through Revenue Online is free. Or, use the tax professional or tax software of your choice.
If you cannot file electronically, complete the 104 return and appropriate schedules. Include your payment by check if you owe. The Colorado 104 booklet is available at www.TaxColorado.com under Instructions and Forms > Individual Income Tax.