When are property taxes due in Arapahoe County, Colorado?

Arapahoe 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 Arapahoe County, Colorado?

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

How do I pay Arapahoe County, Colorado property taxes?

You can pay Arapahoe County property taxes by mail to the county treasurer.

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Arapahoe County Property Tax Due Date

Name: Treasurer
Address: 5334 S Prince St, Littleton, CO, 80120, US
Telephone: (303) 795-4550

Colorado

(303) 795-4550

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

Arapahoe County Treasurer

Phone

(303) 795-4550

Treasurer@ArapahoeGov.com

Fax

(303) 347-2597

Office Address

5334 S Prince St
Littleton, CO 80120

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Mailing Address

PO Box 571, Littleton, CO 80160

Office Hours

Mon-Fri 8am - 4:30pm

How to Pay

Online

Pay using credit card or e-check

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By Mail

Mail check payable to Arapahoe County Treasurer — PO Box 571, Littleton, CO 80160

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In Person

Visit the Treasurer's office — 5334 S Prince St, Littleton CO 80120, Mon-Fri 8am - 4:30pm

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Other Counties in Colorado

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