Colorado State Taxes and CO Income Tax Forms

efile Colorado state tax return
Colorado
"The Centennial State"

The 2019 Colorado State Income Tax Return forms for Tax Year 2019 (Jan. 1 - Dec. 31, 2019) can be e-Filed together with the IRS Income Tax Return by the April 15, 2020 due date. If you file a tax extension you can e-File your Taxes until October 15, 2020 without a late filing penalty. However, if you owe Taxes and don't pay on time, you might face late tax payment penalties. Tip: File on time, even you can't pay on time, as the late filing penalties are higher than the late payment penalties.

eFile.com makes it easy for you to e-file your IRS and Colorado State Tax Return (e.g resident, nonresident, or part-year resident returns). However, the IRS and the respective State Tax Agencies require you to e-file a Federal Income Tax Return at the same time you e-file a State Tax Return. This is not an eFile.com policy but an IRS and State Agency policy. Thus, technically you cannot e-File anywhere - not just eFile.com - a Colorado Tax Return without also e-filing the associated IRS Tax Return. But there is good news, please read on.

Detailed instructions on how you can only prepare and mail in - not eFile - a Colorado 2019 Tax Return - here via eFile.com. However, you must download/print and sign the forms and mail them to the Tax Agency.

Function
 
Description
Where Is Your Colorado Tax Refund Money
Step 1: Sign into your eFile.com account and check acceptance by the Tax Agency.
Step 2: Check your Colorado Tax Refund Status.
Where is Your IRS Refund?
Step 1: Sign into your eFile.com account and check acceptance by the IRS.
Step 2: Check your IRS Tax Refund Status.
Colorado Income Tax Extension
How to correct a rejected Tax Return
If your CO Income Tax Return was rejected by the CO Tax Agency - not eFile.com - instructions on how to correct a rejected Colorado Tax Return.
Colorado, IRS Late Filing, Tax Payment Penalties

1. Late Filing Penalty: This penalty is $5 or a percentage of the unpaid tax equal to 5% (whichever is greater) for each month the tax return is filed after Tax Day, plus ½% for each full or partial month the tax remains unpaid. It will not exceed a total of 12%.
2. Late Payment Penalty: This penalty is the same as the late filing penalty.

3. IRS Penalties: Calculate and Estimate your potential IRS Income Tax Return Penalties.

 

Start Federal and Colorado Tax Returns

 

2020 Colorado Income Tax Return Filing Deadlines By Tax Year

The majority of deadlines listed here are for Tax Year 2019. Some apply to upcoming Tax Years and some are IRS or Federal deadlines.

Deadline
Type
Description
April 15, 2020
Tax Year 2019 Income Tax Return
Prepare and eFile an IRS (Due Date April 15, 2020) and Colorado State Income Tax Return (Due Date April 15, 2020) eFileIT*
Expires: April 15, 2020
2019 Income Tax Extension
October 15, 2020
Tax Year 2019 Income Tax Return after the automatic April 15, 2020 Colorado Tax Extension
Last day to eFile a 2019 Colorado State Income Tax Return for Tax Extension Filers and late eFilers. You can only eFile (to file by paper see below) Colorado Income Tax Return together with an IRS Tax ReturneFileIT*
October 15, 2020 via mail-in Forms. Forms incl. Mailing Address are listed below. 
Tax Year 2019 Income Tax Return after the automatic April 15, 2020 Colorado Tax Extension
Deadline for taxpayers who got an automatic CO Tax Extension to file their Colorado Income Tax Return by mail-in Forms - the Forms incl. mailing addresses are listed below - is October 15, 2020. (Optionally: the eFileIT* deadline is Oct. 15, 2020). Instructions on how to only - without the IRS return - prepare and file a Colorado State Income Tax Return on eFile.com.
Tax Amendment for All Tax Years
IRS Due Dates
IRS Tax Return, Extension, Amendment Deadlines
2020, 2021, etc.
Other State Tax Return, Extension, Amendment Deadlines
Select respective State Tax Return Deadlines.
2020, 2021, etc.
IRS Federal Income Tax Return, Amendment, Extension Deadlines
April 15, 2023
2019 Colorado Income Tax Return Refund. IRS Tax Return Refund Claim Deadline
The last day to file - you will not face late filing penalties -  and claim your 2019 Colorado Income Tax Return Refund. This deadline does not apply if you owe 2019 Income Taxes.

E-File These 2019 Colorado State Tax Forms

Prepare and e-File these 2019 Colorado State Forms in conjunction with your Federal and State Income Tax Return. As you proceed through the tax interview on eFile.com, the application will select the correct state forms for you. You can also select tax forms individually. All these forms will then be e-filed by you to the CO State Tax Agency. Instructions on how to only prepare a State Income Tax Return.

Form/Schedule
Description
eFileIT Now*
Form 102
Claim for Refund on Behalf of Deceased Taxpayer
Form 104
Individual Income Tax Return
Form 104CR
Individual Credit Schedule/Credit for Income Tax Paid to Another State
Form 104EP
Estimated Income Tax Payment Voucher
Form 104PN
Part-Year Resident/Nonresident Tax Calculation Schedule
Form 204
Computation of Penalty Due Based on Underpayment of Colorado Individual Estimated Tax
Form DR0900
Individual Income Tax Payment Voucher
Form DR1366
Enterprise Zone (EZ) Carryforward Schedule 2

* Due to IRS and State Tax Agency tax data sharing and validation requirements, you can only e-file a State Income Tax Return while also e-filing a Federal Income Tax Return. This is not an eFile.com created policy, but all online tax web sites have to adhere to this IRS/state issued tax data sharing policy. You can however prepare all 44 State Income Tax Returns on eFile.com if you have already e-Filed or filed your IRS return. Instructions on how you can ONLY prepare and file State Income Tax Return(s). Only on eFile.com can you prepare, file or e-file unlimited State Tax Returns for one low price and not pay for each State return like you would do on H&R Block® vs. TurboTax®. Dare to Compare Now.

Automatic Colorado State Income Tax Extension

For Tax Year 2019 you can e-File an IRS Tax Extension by April 15, 2020 for free on eFile.com (instructions on whether you should consider a Tax Extension or not). Unlike the IRS, Colorado grants all taxpayers an automatic 6-month extension (which means you do not file an extension form in Colorado) of time to file penalty free beyond the April 15, 2020 deadline. The extended e-File deadline is October 15, 2020. The paper filing deadline is also October 15, 2020. Keep in mind however, a Colorado or IRS tax extension does not extend the due date to pay owed taxes or income tax liabilities penalty free.

If you owe Colorado and/or IRS income taxes and don't pay them by Tax Day, you will be charged Colorado and IRS late tax payment penalties. Calculate and estimate IRS late payment penalties. If you expect to owe taxes, and you are going to take advantage of the Colorado automatic extension of time to file, you should still pay what you owe and submit an Individual Income Tax Payment Voucher Form DR0900 - with your check or money order before April 15, 2020. If you are making a payment by credit card, you do not need to submit this form to to the CO State Tax Agency.  

To avoid the Colorado penalty for late payment, you must pay at least 90% of what you owe by April 15, 2020. Any remaining balance due will only be subject to interest fees, as long as the rest of the tax owed and the return is by the extension deadline, October 15, 2020.

Instructions on how to eFile an IRS tax extension for free on eFile.com by April 15, 2020.

The extended IRS/Colorado eFile deadline is Oct. 15, 2020 - eFileIT* now. If you plan to file or mail-in a Colorado tax return on paper - the Forms and Mailing Address are below - your due date is Oct. 15, 2020.

Important: After Oct. 15, 2020 you can complete and sign tax forms online here on eFile, before you download, print and mail them to the state tax agency.

2018 Tax Year Colorado Income Tax Forms

Colorado State Income Tax Forms for Tax Year 2018 (Jan. 1 - Dec. 31, 2018) can no longer be prepared and e-filed. Complete the respective Form(s) below, sign and mail them to the Colorado Division of Taxation. The CO Tax Forms and Mailing Addresses are below - click for the IRS Federal Income Tax Forms for Tax Year 2018.

Form/Schedule
Description
Claim for Refund on Behalf of Deceased Taxpayer
Individual Income Tax Return
Individual Credit Schedule/Credit for Income Tax Paid to Another State
Estimated Income Tax Payment Voucher
Part-Year Resident/Nonresident Tax Calculation Schedule
Computation of Penalty Due Based on Underpayment of Colorado Individual Estimated Tax
Individual Income Tax Payment Voucher
Enterprise Zone (EZ) Carryforward Schedule 2
Tax Amendment

2017 Tax Year Colorado Tax Forms

Colorado State Income Tax Forms for Tax Year 2017 (Jan. 1 - Dec. 31, 2017) can no longer be prepared and e-filed. Complete the respective Form(s) below, sign and mail them to the Colorado Division of Taxation. In addition to filing Colorado Forms, you might also have to file the 2017 IRS Tax Return Forms

Form/Schedule
Description
Claim for Refund on Behalf of Deceased Taxpayer
Individual Income Tax Return
Individual Credit Schedule/Credit for Income Tax Paid to Another State
Estimated Income Tax Payment Voucher
Part-Year Resident/Nonresident Tax Calculation Schedule
Computation of Penalty Due Based on Underpayment of Colorado Individual Estimated Tax
Individual Income Tax Payment Voucher
Enterprise Zone (EZ) Carryforward Schedule 2
Tax Amendment

Colorado Tax Facts, Information

Colorado Tax Information and Contacts

CO Tax Type
Description
Colorado Income Tax Code
Colorado has a state retail sales tax rate of 2.9%. In 2010, CO lawmakers removed sales and use tax exemptions for certain items in order to balance the state's budget. Items no longer exempt from the sales/use tax include candy and soft drinks (including those sold in vending machines), standardized computer software, and materials used in mail advertising or sales by out-of-state retailers. Many cities and counties have their own sales tax rates in addition to the CO state sales tax rate. Certain county and special district taxes may also apply.
Colorado Tax Fact
Colorado has a sales tax on "nonessential [food] articles and containers" that are convenient to the consumer, but not essential to the sale of a food product. Therefore, items such as utensils, napkins, straws, and bibs are taxed. Carryout containers used by a consumer to carry leftover meals from a restaurant are also taxed. However, paper cups and disposable containers provided by the retailer (such as fast-food French Fry containers and pizza delivery boxes) are essential and not taxed.
Colorado Tax Payment Options
Colorado State Tax Agency Contacts

 

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