Colorado Sales Tax Rate by County and City

Counties (75)

The county rate applies outside any city that levies its own tax. Alphabetical.

Cities and towns (320)

Inside city limits the city's tax applies on top of the county's. Alphabetical; the county shown is the one the DOR assigns to the city.

Methodology

How the combined rate is built

A sales tax rate is a sum. The state sets one rate for every sale in the state; the county, the city and any special district (transit authority, hospital district, improvement district) the address sits in each add their own. The combined rate is those components added together, and the page lists every one with the authority that levies it and the date it took effect, so the total can be checked line by line.

Combined rate  =  state rate + county rate + city rate + district rates
Tax            =  purchase amount × combined rate ÷ 100

Source and effective date

Every rate on this page comes from the Colorado Department of Revenue, Jurisdiction Codes & Sales/Use Tax Rates (DR 1002), the file dated July 1, 2026 with rates effective July 1, 2026, read on October 8, 2026. The file states one effective date for the whole table and none per jurisdiction, so every component is dated by it. Sales tax rates are not tax-year figures: they change on the first day of a quarter, most often January, April, July and October 1. The snapshot behind these pages is rebuilt from the DOR file on the fifth of those months.

• Self-collected home-rule cities (about 70, including Denver, Boulder and Colorado Springs) set and administer their own sales tax outside CDOR's system; CDOR's file flags them and lists the city rate as reported. Their pages say so.
• CDOR reissues the spreadsheet on January 1 and July 1; components are dated by that issue date because the file carries no per-jurisdiction dates.

Limitations

• General merchandise only. Groceries, prepared food, lodging, motor vehicles, fuel, alcohol and services are taxed at different rates or not at all, and that differs by state and within Colorado.
• A ZIP code is not a jurisdiction. ZIP codes cross county, city and district lines, so a receipt's ZIP does not set the rate; the taxing jurisdictions the address sits in do. That is why there are no ZIP pages here.
• Where the rate is measured. Colorado is a destination-based state: the rate at the address the goods are delivered to applies.
• Home rule. Colorado's self-collected home-rule cities (about 70, including Denver, Boulder and Colorado Springs) set, administer and collect their own city sales tax outside the Department of Revenue's system. The Department's file flags them and lists the city rate as reported to it; those pages say so, and the city's own exemptions and rules may differ from the state's.
• Special districts that cover part of a jurisdiction (an address-range improvement district, a transit area that stops at a road) are listed under "other rate areas" where the DOR lists them and left out where it lists them only by address.
• Caps and thresholds (a surtax that applies only to the first $5,000 of an item, a maximum tax per sale) are not modeled; the split assumes the full rate on the full amount.

Last reviewed: October 2026. The state table was checked against each revenue department's page on October 8, 2026; the local snapshots are refreshed from the DOR files every quarter and checked by scripts/check-sales-tax.mjs before each deploy.