Colorado State Income Tax Forms Guide

Panoramic view of the Rocky Mountains in Colorado.

State Income Tax Forms for Colorado

Colorado is one of 41 states that collect a state income tax. If you are a full time, part-time or nonresident of Colorado and filed a federal tax return, you must also file an individual tax return with Colorado state.

State Income Tax FormsPertains ToUse These Forms If..
Individual Income Tax ReturnIndividual Income EarnersYou earned any income in the state of CO as a full-time, part-time or nonresident.
Withholding Tax FormsEmployers, EmployeesYou need to file or adjust a CO state withholding tax status.
6-Month Extension RequestsIndividual Income EarnersYou need a 6 month extension to file your state income taxes.
Estimated Income Tax FormsSelf-employed Individuals, Independent ContractorsYou are required to pay monthly or quarterly estimated income taxes.
All State Income Tax FormsIncome EarnersYou need to find any state income tax form applicable to Colorado.

Property Tax Forms for Colorado

Colorado doesn’t collect property taxes at the state level. Property taxes are instead collected at the local level, by cities, counties and school districts. Homestead exemptions are not automatic in Colorado; you must file an application to receive the property tax discount.

Property Tax FormsPertains ToUse These Forms If..
Homestead Exemption ApplicationHomeownersYou qualify for a homestead exemption on your primary residence. Applications are submitted through you county. 
Property Tax Exemption FormsHome, Land, Property OwnersYou qualify for any number of property tax exemptions for CO. Must file locally.
Property Tax/Rent/Heat CreditHome, Land, Property OwnersYou want to see if you qualify for a property tax relief credit.
All Property Tax FormsHome, Land, Property OwnersYou own any property in CO, including a home, land or commercial real estate.

All Other Tax Forms for Colorado

Colorado is one of 25 states that has a Vehicle Property Tax, which is filed locally. All Colorado state specific tax forms, specialty forms and motor vehicle forms provided below.

All Other FormsPertains ToUse These Forms If..
Vehicle Property TaxOwner of a Motor VehicleYou own a motor vehicle. Vehicle property tax is filed locally.
Motor Vehicle Tax FormsBuyer, Seller in Vehicle TransactionsYou bought or sold a motor vehicle in CO.
All Colorado Tax FormsAny Tax FilerYou need to find any tax form applicable to Colorado.

Helpful Resources for Filing Colorado Tax Forms

Colorado offers installment agreements for help paying tax bills, income tax credits and official resources for understanding and filing local property tax forms. The main Colorado tax form and instruction portal is also provided.

CO Filing ResourcesPertains ToUse This Resource If..
Installment Payment AgreementFilers Unable to Pay Tax Bill in FullYou can’t pay your tax bill in full but wish to make monthly payments instead.
Income Tax CreditsPotentially Any Tax FilerYou want to see what income tax credits CO has to offer and if you qualify.
Property Tax Credit (PTC)Qualifying HomeownersYou want to see if you qualify for a property tax relief credit.
Property Tax AssistanceHome, Land, Property OwnersYou need any help whatsoever with property taxes for CO.
Property Tax County DirectoryHome, Land, Property OwnersYou need to contact your county property tax office.
Colorado Taxation DivisionAny Tax FilerYou need detailed information on any of the various taxes CO collects.
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