Colorado Sales Tax Guide

State sales tax plus state-administered locals, special districts, and self-collecting home-rule cities

Statewide general taxYes

Primary returnDR 0100 · 2026 due dates

Marketplace postureGenerally excluded with evidence

Exemption formDR 5002

What people ask about Colorado sales tax

Start with the high-impact answers, then use the complete rule explorer for product-specific and long-tail research.

01Does Colorado have a statewide sales tax?

State sales tax plus state-administered locals, special districts, and self-collecting home-rule cities Colorado is one of the country's most fragmented systems. State-administered jurisdictions can be handled through Department of Revenue channels, while self-collecting home-rule cities may require separate registration, rules, and returns.

02What sales tax rate and sourcing rules matter in Colorado?

The state rate is 2.9%, but destination local layers and special districts drive the combined rate. A DR 0800 site code and the correct state-administered versus home-rule boundary are essential.

03What Colorado sales tax return or form is used?

The principal repository-tracked return is DR 0100. A paper channel exists, but the current form version and account eligibility still require confirmation.

04How are marketplace sales reported in Colorado?

Facilitator-collected sales are generally excluded from the seller's return when the state's evidence and certification requirements are satisfied.

05What resale or exemption certificate applies in Colorado?

The repository tracks Declaration of Wholesale or Entity Sales Tax Exemption. Certificate validity still depends on the purchaser, seller, claimed use, dates, signatures, and any state-specific acceptance conditions.

06Does Colorado have a sales tax holiday?

The current Atlas research does not publish an active holiday rule for this state. Confirm the current revenue-department calendar before changing tax.

07What special sales tax rates or excise layers apply in Colorado?

No separately verified special-rate category is published in the current member-state register for this jurisdiction. Product-specific research observations remain available below.

08What does the Colorado research say about custom software?

The corpus contains one custom software observation. The research observation says the observed treatment is excluded from base; with no rate; a 0% state rate; local interaction: no local rate; sourcing: standard situs; effective from 2012-07-01. Custom software is outside the current three-part test and remains exempt under the 2027 negotiated/custom exemption. Status: Research observation — independent review required. Confirm the cited authority and transaction facts before use.

09What does the Colorado research say about digital audio visual?

The corpus contains one digital audio visual observation. The research observation says the observed treatment is included in base; with general rate lookup; a 2.9% state rate; local interaction: ordinary local stack; sourcing: standard situs; effective from 2021-07-01. HB21-1312 codified video and music delivered by download or streaming as taxable digital goods effective 2021-07-01. Status: Research observation — independent review required. Confirm the cited authority and transaction facts before use.

10What does the Colorado research say about prepared food?

The corpus contains one prepared food observation. The research observation says the observed treatment is included in base; with general rate lookup; a 2.9% state rate; local interaction: ordinary local stack; sourcing: standard situs; effective from 1980-01-01. Prepared food remains outside the qualifying food-for-home-consumption exemption. Status: Research observation — independent review required. Confirm the cited authority and transaction facts before use.

Need to calculate tax on actual sales?

Choose the calculation engine or the compliance workflow. Inspect the public examples, then bring five cases from your business.

Calculate tax in your own system.

Evaluate addresses, product identity, certificate dates, refunds and retries with the same inputs your integration will use.

Inspect calculation examples →

Disclosed reference inputs and executed results. Confirm coverage and configuration for your own transactions.

Evaluate the calculation engine →

Explain the amounts on your return.

Trace a generated sample return to its source rows. See how seller sales, marketplace activity and unresolved responsibility are separated.

Trace the sample return →

Synthetic Virginia package demonstration. Review, authorization and state acceptance remain separate steps.

Evaluate sales tax compliance →

See task rates and subscription prices. Public evidence is open to inspect; we confirm scope and commercial terms before a private evaluation.

How Colorado's system is organized

Colorado is one of the country's most fragmented systems. State-administered jurisdictions can be handled through Department of Revenue channels, while self-collecting home-rule cities may require separate registration, rules, and returns.

The headline rate is only the beginning

The state rate is 2.9%, but destination local layers and special districts drive the combined rate. A DR 0800 site code and the correct state-administered versus home-rule boundary are essential.

Why location data matters

Tax situs is a legal determination. Mailing city, ZIP code, county proximity, and geocoding are useful evidence, but none should silently substitute for the jurisdiction rule that controls the transaction.

Rules that can change the answer

Product identity should be established before a rate is selected. In Colorado, examples that deserve their own rule path include:

local exemptions do not always match state exemptions
software and digital products vary across home-rule cities
delivery charges and manufacturing exemptions can diverge by jurisdiction

These are examples, not an exhaustive taxability matrix. Bundles, customer use, delivery method, exemptions, and effective dates can change the result.

Beyond three headline examples

The underlying research inventory contains 38 Colorado treatment records across 26 product families. The inventory includes effective-date, evidence, rate-class, local-interaction, and sourcing fields. Its breadth is not a claim that every observed treatment is active in production: unresolved or independently unreviewed records remain non-operative.

38treatment records

26product families

utilities energyprewritten softwarebuilding materialinstallation servicelodgingnonprescription drug human

Explore all 38 Colorado research recordsSearch treatment, rate, local, sourcing, evidence, and effective-date fields

Search this state's rule research

38 of 38 records shown

general tangible personal propertyordinary

Research observation — independent review required

C.R.S. 39-26-104 taxes retail tangible personal property and 39-26-106 sets the 2.9 percent state rate from 2001-01-01.

Treatment: included in base
Rate application: general rate lookup
Rate class: ordinary
State rate: 2.9%
Taxable base: retail purchase price of tangible personal property
Local interaction: ordinary local stack
Sourcing: standard situs
Evidence required: canonical product identity sale price and situs
Effective start: 2001-01-01
Effective-window status: current 2 9 percent state rate window exact
Runtime boundary: home rule city base and rate matrix required

Before operational use: home-rule city matrix; independent review

What people ask about Colorado sales tax

Need to calculate tax on actual sales?

Calculate tax in your own system.

Explain the amounts on your return.

How Colorado's system is organized

The headline rate is only the beginning

Rules that can change the answer

Beyond three headline examples

Working with DR 0100

Collected by a marketplace does not mean invisible

Declaration of Wholesale or Entity Sales Tax Exemption

State-specific knowledge, carried into the workflow

Start with the authority

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