What is the sales tax rate in Monmouth, Oregon?

The combined sales tax rate in Monmouth, Oregon is 0.000% as of 2026. This includes the Oregon state rate of 0.000% plus local jurisdiction taxes.

How is the Monmouth sales tax calculated?

Multiply your purchase amount by 0.000% (or 0.00000) to get the tax owed. For example, a $100 purchase incurs $0.00 in sales tax.

What is the Oregon state sales tax rate?

The base Oregon state sales tax rate is 0.000%. Local jurisdictions may add additional taxes on top of this rate.

Does Monmouth have a county sales tax?

Monmouth does not levy an additional county-level sales tax beyond the state base rate.

When was the Monmouth sales tax rate last updated?

The Monmouth sales tax rate was last verified on March 27, 2026. We cross-reference all rates against the official State Department of Revenue data.

Live Data: April 2026

Monmouth, OR Sales Tax Rate 2026

The combined sales tax rate in Monmouth, Oregon is 0.000%.

Combined Rate 0.000%

State0.000%

Monmouth Sales Tax Breakdown

Jurisdiction	Rate
Oregon State Sales Tax	0.000%
Total Combined Rate	0.000%

Which County Is Monmouth In?

Monmouth falls within Polk, Oregon. Polk imposes a 0.000% county-level sales tax in addition to the Oregon state base rate.

Monmouth ZIP Codes

The following ZIP codes are mapped to Monmouth for sales tax purposes. All listed codes apply the 0.000% combined rate.

97361

Nearby Tax Rates

Combined Rate

Combined Rate

Business Nexus in Oregon

Economic Nexus Threshold

Selling into Oregon from out of state? Once you exceed $0 in annual sales or 0 transactions, you must register and collect Oregon sales tax.

FAQ: Monmouth Sales Tax

The combined sales tax rate in Monmouth, Oregon is 0.000% as of 2026.

Multiply your purchase price by 0.000% to find the tax owed. A $500 purchase would include $0.00 in sales tax.

Groceries are generally taxable in Oregon. Check the official Department of Revenue for specific exemptions.

Vehicle purchases in Monmouth are subject to the 0.000% combined rate, though some states apply different rules for vehicle sales. Verify with the Oregon Department of Revenue or DMV.

Register for a sales tax permit through the official Oregon Department of Revenue website. Registration is typically free and required before collecting any sales tax.

Sales Tax Calculator

Using 0.000% rate for Monmouth, OR

Purchase Amount ($)

Tax Amount $0.00

Total with Tax $100.00

Rate applied: 0.000% combined

Official Tax Authority

Oregon Department of Revenue

Filing Deadline: Oregon has no general sales tax. Corporate Activity Tax and other business taxes apply.

Visit Official Portal (503) 378-4988