When are property taxes due in Columbia County, Oregon?

Columbia County property taxes are due November 15. A second installment is due May 15. This deadline applies to all counties in Oregon.

What is the penalty for late property tax payment in Columbia County, Oregon?

The late payment penalty in Columbia County is 1.333% monthly (16% annual).

How do I pay Columbia County, Oregon property taxes?

You can pay Columbia County property taxes via Online, mail, in-person.

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Columbia County Property Tax Due Date

Oregon

(503) 397-2240

2026 Property Tax Due Dates

Official Source

Installment 1

November 15

Full (3% discount) or first third

Installment 2

May 15

Third installment

Pay Taxes Online →

Penalty: 1.333% monthly (16% annual)Grace period: None

Payment Methods

Online, Mail, In-Person

Columbia County Treasurer

Treasurer

MaryAnn Guess

Phone

(503) 397-2240

Office Address

230 Strand Street
St Helens, OR 97051

Get Directions

Office Hours

Mon-Fri 8am - 5pm

How to Pay

Online

Pay using credit card or e-check

Visit Website →

By Mail

Mail check payable to Columbia County Treasurer

Visit Website →

In Person

Visit the Treasurer's office — 230 Strand Street, St Helens OR 97051, Mon-Fri 8am - 5pm

Visit Website →

Other Counties in Oregon

Baker Benton Clackamas Clatsop Coos Crook Curry Deschutes

View all Oregon counties →

About Columbia County

Columbia County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 52,589. The county seat is St. Helens.

Source: Wikipedia — content available under CC BY-SA 4.0

Related Resources

CountyRollCounty Office Directory

Find the assessor, treasurer & recorder for Columbia

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Property Tax FAQ Tax Calendar

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We'll email you 14 days before your property taxes are due.

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