COLORADO WORKS BETTER™ Taxpayer Shareholder Portal Follow

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Works Better Corporation, a nonpartisan public benefit corporation, builds this site.

Independent public-records project, separate from the State of Colorado and from every party and campaign.

Every number carries one of four labels (FACT, CALC, SAMPLE or PENDING) and a source you can open.
A question people actually ask

Which county charges the highest county sales tax?

San Juan County, at 6.5% in 2026, before the state’s 2.9% and any city or district tax. 11 counties charge none at all.

CALC Department of Revenue sales tax rate tables, 2026; the comparison across counties is ours

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Data as of 1 October 2026.

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Which county charges the highest county sales tax? — San Juan County, at 6.5% in 2026, before the state’s 2.9% and any city or district tax. 11 counties charge none at all.