Federal Income Tax Reform: New federal tax brackets have been added for tax year 2018! More information will be available soon.
Tax season is open, and returns are due on April 18th! Save by eFiling your taxes early with TurboTax start now

Colorado Free Printable  for 2019 Colorado — E-Filer Attachment Form

It appears you don't have a PDF plugin for this browser. Please use the link below to download 2018-colorado-form-dr-1778.pdf, and you can print it directly from your computer.

More about the Colorado Form DR 1778


eFile your Colorado tax return now

eFiling is easier, faster, and safer than filling out paper tax forms. File your Colorado and Federal tax returns online with TurboTax in minutes. FREE for simple returns, with discounts available for Tax-Brackets.org users!

File Now with TurboTax

We last updated Colorado Form DR 1778 in January 2019 from the Colorado Department of Revenue. This form is for income earned in tax year 2018, with tax returns due in April 2019. We will update this page with a new version of the form for 2020 as soon as it is made available by the Colorado government.

Other Colorado Individual Income Tax Forms:

In addition to information about Colorado's income tax brackets, Tax-Brackets.org provides a total of 65 Colorado income tax forms, as well as many federal income tax forms. Here's a list of some of the most commonly used Colorado tax forms:

Form Code Form Name
Form 104 Colorado Income Tax Return
Form 104EP Estimated Tax - Individual Coupon
Form 104PN Part-Year/Nonresident Computation Form
Form DR 1059 Military Spouse -- Exemption from Withholding
Form DR 1778 E-Filer Attachment Form

Download all CO tax forms View all 65 Colorado Income Tax Forms


Disclaimer: While we do our best to keep Form DR 1778 up to date and complete on Tax-Brackets.org, we cannot be held liable for errors or omissions. Is this form missing or out-of-date? Please let us know so we can fix it!

Tax Form Sources:

** This Document Provided By Tax-Brackets.org **
Source: http://www.tax-brackets.org/coloradotaxforms/form-dr-1778