When are property taxes due in Douglas County, Colorado?

Douglas County property taxes are due February 28. A second installment is due June 15. This deadline applies to all counties in Colorado.

What is the penalty for late property tax payment in Douglas County, Colorado?

The late payment penalty in Douglas County is 1% per month after due date.

How do I pay Douglas County, Colorado property taxes?

You can pay Douglas County property taxes online through the county payment portal.

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Douglas County Property Tax Due Date

Name: Treasurer
Address: 100 Third Street, Castle Rock, CO, 80104, US
Telephone: (303) 660-7455

Colorado

(303) 660-7455

2026 Property Tax Due Dates

Official Source

Installment 1

February 28

First half (or full by April 30)

Installment 2

June 15

Second half

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Penalty: 1% per month after due dateGrace period: None

Payment Methods

Online, Mail, In-Person

Douglas County Treasurer

Phone

(303) 660-7455

dctreasurer@douglas.co.us

Office Address

100 Third Street
Castle Rock, CO 80104

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How to Pay

Online

Pay using credit card or e-check

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By Mail

Mail check payable to Douglas County Treasurer

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In Person

Visit the Treasurer's office — 100 Third Street, Castle Rock CO 80104

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Other Counties in Colorado

Adams Alamosa Arapahoe Archuleta Baca Bent Boulder Broomfield

View all Colorado counties →

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Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.