Home Tax Colorado Income Tax Forms

Colorado Income Tax Forms

Colorado Income Tax Forms

Individual Income Tax

Form 104 Colorado Individual Income Tax 

Corporate Income Tax 

Form 112 C-Corporation Income Tax

Form 112X Amended Colorado C-Corporation Income Tax Return

Colorado Income Tax Forms: Everything You Need to Know

Colorado, like every other state in the United States, has its own income tax system. It requires residents to file their annual income taxes using specific forms. Filling these forms can be daunting and time-consuming for those who are unfamiliar with the process. In this article, we’ll delve into everything you need to know about Colorado income tax forms.

What Is Colorado Income Tax?

First, let’s define what Colorado income tax is. It is a tax levied on the income of Coloradans by the state government. Some types of income are not taxed, such as financial gifts or inheritances. The Colorado Department of Revenue is responsible for collecting income tax and ensuring taxpayers comply with the state’s income tax laws.

Who is Required to Pay Colorado Income Tax?

Any taxpayer who lives or works in Colorado is required to pay state income tax. This includes:

– Residents who earned income during the year
– Non-residents who worked or earned money in Colorado

Colorado has a flat tax rate regardless of an individual’s income level. The rate is currently 4.55% of taxable income.

How to File Colorado Income Tax Return

Filing a Colorado Income Tax return is mandatory for all taxpayers who receive taxable income in Colorado, whether they are residents or non-residents. The filing deadline for individual income tax returns in Colorado corresponds with the federal tax deadline, which is April 15th of each year.

To file their state income tax return, taxpayers need to obtain the following forms:

– Form 104 – Colorado Individual Income Tax Return
– Form 104PN – Part-Year Resident/Nonresident Tax Calculation Schedule

Colorado residents use form 104 to file their taxes, while non-residents and part-year residents use form 104PN. These forms are available on the Colorado Department of Revenue’s website, and you can fill them out electronically or by printing and mailing them.

Taxpayers should ensure they have all their tax documentation in order before filing their taxes. This includes their:

– Social Security Number or ITIN
– Income statement: W-2s, 1099s and K-1s
– Interest statements
– Mortgage and property tax statements
– Business, rental and farm statements
– Capital Gains and Losses
– Out-of-State Credits
– Other tax credits and deductions

The Colorado Department of Revenue also offers a paperless option for taxpayers who prefer a more environmental approach. Taxpayers can file their taxes and select a direct deposit option. They can also check their refunds and amend previous returns online.

Is Colorado Income Tax Deductible?

Residents can deduct their income taxes as long as the deduction cost is higher than the standard deduction. The standard deduction is currently $12,550 for individual taxpayers and $25,000 for married taxpayers filing jointly.

In Colorado, taxpayers can deduct the following:

– Federal income taxes
– Mortgage interest
– Property taxes
– Charitable contributions

Taxpayers can use their adjusted gross income (AGI) to calculate their Colorado taxes owed. AGI is the amount of money one earns, minus pre-tax deductions such as IRA contributions, moving expenses, and student loan interest.

Colorado Tax Brackets

Colorado has a flat tax rate, which means taxes are the same for all income levels. Regardless of how much you earn, you’ll pay 4.55% on your taxable income.

How to Check Colorado Income Tax Refund

Taxpayers who file their income taxes electronically usually receive their refunds within two weeks. For those who mail their tax forms, refunds may take up to six weeks.

To check their Colorado tax refund status, taxpayers can visit the Colorado Department of Revenue’s website and enter their taxpayer ID number and their expected refund. They can also check the status of their refund by calling the Department’s Taxpayer Service Center.


In conclusion, understanding Colorado’s income tax system and forms can save taxpayers both time and stress. Every taxpayer should be familiar with the tax forms they need to fill out, the deductions and credits they can claim, and other requirements. The Colorado Department of Revenue offers a range of resources that can help taxpayers with their filings, including online filing, and paperless options to help make the process a lot less daunting. With a better understanding of Colorado’s tax system, taxpayers can file their taxes more accurately and get their refunds faster.