What is the sales tax rate in Mountlake Terrace, Washington?

The combined sales tax rate in Mountlake Terrace, Washington is 10.500% as of 2026. This includes the Washington state rate of 6.500% plus local jurisdiction taxes.

How is the Mountlake Terrace sales tax calculated?

Multiply your purchase amount by 10.500% (or 0.01050) to get the tax owed. For example, a $100 purchase incurs $10.50 in sales tax.

What is the Washington state sales tax rate?

The base Washington state sales tax rate is 6.500%. Local jurisdictions may add additional taxes on top of this rate.

Does Mountlake Terrace have a county sales tax?

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

When was the Mountlake Terrace sales tax rate last updated?

The Mountlake Terrace 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

Mountlake Terrace, WA Sales Tax Rate 2026

The combined sales tax rate in Mountlake Terrace, Washington is 10.500%.

Combined Rate 10.500%

State6.500%

Mountlake Terrace Sales Tax Breakdown

Jurisdiction	Rate
Washington State Sales Tax	6.500%
Special District Tax	4.000%
Total Combined Rate	10.500%

Which County Is Mountlake Terrace In?

Mountlake Terrace falls within Snohomish, Washington. Snohomish imposes a 0.000% county-level sales tax in addition to the Washington state base rate.

Mountlake Terrace ZIP Codes

The following ZIP codes are mapped to Mountlake Terrace for sales tax purposes. All listed codes apply the 10.500% combined rate.

98043

Nearby Tax Rates

Business Nexus in Washington

Economic Nexus Threshold

Selling into Washington from out of state? Once you exceed $100,000 in annual sales or 200 transactions, you must register and collect Washington sales tax.

FAQ: Mountlake Terrace Sales Tax

The combined sales tax rate in Mountlake Terrace, Washington is 10.500% as of 2026.

Multiply your purchase price by 10.500% to find the tax owed. A $500 purchase would include $52.50 in sales tax.

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

Vehicle purchases in Mountlake Terrace are subject to the 10.500% combined rate, though some states apply different rules for vehicle sales. Verify with the Washington Department of Revenue or DMV.

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

Sales Tax Calculator

Using 10.500% rate for Mountlake Terrace, WA

Purchase Amount ($)

Tax Amount $0.00

Total with Tax $100.00

Rate applied: 10.500% combined

Official Tax Authority

Washington State Department of Revenue

Filing Deadline: Monthly, quarterly, or annual returns. Due dates vary by filing frequency. File via My DOR portal.

Visit Official Portal (800) 647-7706