Colorado State Tax Return

Colorado's Official Website
Refund Status Hotline1-303-238-3278
General Information1-303-238-7378

Colorado Individual Income Tax Provisions

At the state level, income tax is assessed based on three different systems, joint, combined, or a combination of the two, which accounts for how income for families is taxed. Colorado follows a joint system, meaning that both spouses' incomes are added together and taxed as a single entity. It's similar to the way the federal government applies taxes, using AGI as a base. Colorado also uses AGI as a starting point for their taxes, however there are some differences to what is taxed in comparison to the federal guidelines.


The following sources of income are exempt from inclusion in the tax base:

  • Interest from U.S. Government Bonds
  • $20,000/person ($24,000 over 65 years old) in pension or retirement income from private, public, civil service or military funds
  • Recognized reservation tribal income
  • Social security benefits up to $20,000/ person ($24,000 65+) in combination with pension income limitations
  • Up to $100,000 of capital gains from specific state sources is exempt after being held for five continuous years


Deductions at the state level also follow many federal guidelines, and in the state of Colorado, the standard deduction is exactly the same as the federal, as well as itemized deductions. One of the biggest differences in the state law from the federal is that state income taxes are non-deductible.

However, deductions exist for state-qualified tuition programs, wildlife mitigation costs, military family relief donations, and medical savings account contributions.

2023 Colorado Tax Rates

If taxable income more than - but not over - the tax is:
$0 - 4.36% of the amount over $0 works with the IRS and state revenue services to bring you the latest tax laws, forms & schedules.

When you prepare a federal return with, we make it quick and easy to complete your Colorado state tax return. offers e-file and direct deposit with all states that have e-file and direct deposit capabilities.

File My Federal & Colorado State Returns!

Colorado Services Available
Preparation Preparation of a state tax return for Colorado is available for $29.95.
E-File E-File is available for Colorado.
Direct Deposit Direct Deposit is available for Colorado.
Non-Resident Preparation Non-resident CO state return's are available upon request.
Non-Resident E-File E-Filing non-resident CO state returns is not available.
Filing Deadline 4/18/2023
CO Counties CO Cities
AdamsAurora, Bennett, Brighton, Commerce City, Denver, Dupont, Eastlake, Henderson, Strasburg, Watkins, Westminster
AlamosaAlamosa, Hooper, Mosca
ArapahoeAurora, Byers, Deer Trail, Englewood, Littleton
ArchuletaArboles, Chimney Rock, Chromo, Pagosa Springs
BacaCampo, Pritchett, Springfield, Two Buttes, Vilas, Walsh
BentFort Lyon, Hasty, Las Animas, McClave
BoulderAllenspark, Boulder, Broomfield, Eldorado Springs, Erie, Hygiene, Jamestown, Lafayette, Longmont, Louisville, Lyons, Nederland, Niwot, Pinecliffe, Ward
ChaffeeBuena Vista, Granite, Monarch, Nathrop, Poncha Springs, Salida
CheyenneArapahoe, Cheyenne Wells, Kit Carson, Wild Horse
Clear CreekDumont, Empire, Georgetown, Idaho Springs, Silver Plume
ConejosAntonito, Capulin, Conejos, La Jara, Manassa, Romeo, Sanford
CostillaBlanca, Chama, Fort Garland, Garcia, Jaroso, San Luis, San Pablo
CrowleyCrowley, Olney Springs, Ordway, Sugar City
CusterWestcliffe, Wetmore
DeltaAustin, Cedaredge, Cory, Crawford, Delta, Eckert, Hotchkiss, Lazear, Maher, Paonia
DoloresCahone, Dove Creek, Rico
DouglasCastle Rock, Franktown, Larkspur, Littleton, Louviers, Parker, Sedalia
EagleAvon, Basalt, Bond, Burns, Eagle, Edwards, Gypsum, McCoy, Minturn, Red Cliff, Vail, Wolcott
El PasoCalhan, Cascade, Colorado Springs, Elbert, Fountain, Green Mountain Fal, Manitou Springs, Monument, Palmer Lake, Peyton, Ramah, Rush, USAF Academy, Yoder
ElbertAgate, Elizabeth, Kiowa, Matheson, Simla
FremontCanon City, Coal Creek, Coaldale, Cotopaxi, Florence, Hillside, Howard, Penrose, Rockvale
GarfieldBattlement Mesa, Carbondale, Glenwood Springs, New Castle, Parachute, Rifle, Silt
GilpinBlack Hawk, Central City, Rollinsville
GrandFraser, Granby, Grand Lake, Hot Sulphur Spring, Kremmling, Parshall, Tabernash, Winter Park
GunnisonAlmont, Crested Butte, Gunnison, Ohio City, Parlin, Pitkin, Powderhorn, Somerset
HinsdaleLake City
HuerfanoGardner, La Veta, Walsenburg
JacksonCoalmont, Cowdrey, Rand, Walden
JeffersonArvada, Broomfield, Buffalo Creek, Conifer, Denver, Evergreen, Golden, Idledale, Indian Hills, Kittredge, Littleton, Morrison, Pine, Wheat Ridge
KiowaArlington, Eads, Haswell, Sheridan Lake
Kit CarsonBethune, Burlington, Flagler, Seibert, Stratton, Vona
La PlataBayfield, Durango, Hesperus, Ignacio, Marvel
LakeClimax, Leadville, Twin Lakes
LarimerBellvue, Berthoud, Drake, Estes Park, Fort Collins, Glen Haven, Laporte, Livermore, Loveland, Masonville, Red Feather Lakes, Timnath, Wellington
Las AnimasAguilar, Boncarbo, Branson, Gulnare, Hoehne, Kim, Model, Starkville, Trinchera, Trinidad, Weston
LincolnArriba, Genoa, Hugo, Karval, Limon
LoganAtwood, Crook, Fleming, Iliff, Merino, Padroni, Peetz, Sterling
MesaClifton, Collbran, De Beque, Fruita, Gateway, Glade Park, Grand Junction, Loma, Mack, Mesa, Molina, Palisade, Whitewater
MoffatCraig, Dinosaur, Hamilton, Maybell, Slater
MontezumaCortez, Dolores, Lewis, Mancos, Mesa Verde Nationa, Pleasant View, Towaoc, Yellow Jacket
MontroseBedrock, Cimarron, Montrose, Naturita, Nucla, Olathe, Paradox, Redvale
MorganBrush, Fort Morgan, Hillrose, Log Lane Village, Orchard, Snyder, Weldona, Wiggins
OteroCheraw, Fowler, La Junta, Manzanola, Rocky Ford, Swink
OurayOuray, Ridgway
ParkAlma, Bailey, Como, Fairplay, Grant, Guffey, Hartsel, Jefferson, Lake George, Shawnee
PhillipsAmherst, Haxtun, Holyoke, Paoli
PitkinAspen, Meredith, Snowmass, Snowmass Village, Woody Creek
ProwersGranada, Hartman, Holly, Lamar, Wiley
PuebloAvondale, Beulah, Boone, Colorado City, Pueblo, Rye
Rio BlancoMeeker, Rangely
Rio GrandeCenter, Del Norte, Homelake, Monte Vista, South Fork
RouttClark, Hayden, Oak Creek, Phippsburg, Steamboat Springs, Toponas, Yampa
SaguacheCrestone, Moffat, Saguache, Sargents, Villa Grove
San JuanSilverton
San MiguelEgnar, Norwood, Ophir, Placerville, Telluride
SedgwickJulesburg, Ovid, Sedgwick
SummitBreckenridge, Dillon, Frisco, Silverthorne
TellerCripple Creek, Divide, Florissant, Victor, Woodland Park
WashingtonAkron, Anton, Cope, Lindon, Otis, Woodrow
WeldAult, Briggsdale, Brighton, Carr, Dacono, Eaton, Evans, Firestone, Fort Lupton, Frederick, Galeton, Gilcrest, Gill, Greeley, Grover, Hereford, Hudson, Johnstown, Keenesburg, Kersey, La Salle, Longmont, Lucerne, Mead, Milliken, New Raymer, Nunn, Pierce, Platteville, Roggen, Severance, Stoneham, Windsor
YumaEckley, Idalia, Joes, Kirk, Vernon, Wray, Yuma