What is the sales tax rate in Washington, District of Columbia?

The combined sales tax rate in Washington, District of Columbia is 6.000% as of 2026. This includes the District of Columbia state rate of 6.000% plus local jurisdiction taxes.

How is the Washington sales tax calculated?

Multiply your purchase amount by 6.000% (or 0.00600) to get the tax owed. For example, a $100 purchase incurs $6.00 in sales tax.

What is the District of Columbia state sales tax rate?

The base District of Columbia state sales tax rate is 6.000%. Local jurisdictions may add additional taxes on top of this rate.

Does Washington have a county sales tax?

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

When was the Washington sales tax rate last updated?

The Washington 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

Washington, DC Sales Tax Rate 2026

The combined sales tax rate in Washington, District of Columbia is 6.000%.

Combined Rate 6.000%

State6.000%

Washington Sales Tax Breakdown

Jurisdiction	Rate
District of Columbia State Sales Tax	6.000%
Total Combined Rate	6.000%

Which County Is Washington In?

Washington falls within District of Columbia, District of Columbia. District of Columbia imposes a 0.000% county-level sales tax in addition to the District of Columbia state base rate.

Washington ZIP Codes

The following ZIP codes are mapped to Washington for sales tax purposes. All listed codes apply the 6.000% combined rate.

20001 20002 20003 20004 20005 20006 20007 20008 20009 20010 20011 20012 20015 20016 20017 20018 20019 20020 20024 20032 20036 20037 20045 20052 20057 20059 20064 20204 20220 20230 20240 20245 20250 20317 20319 20390 20408 20415 20418 20422 20427 20431 20510 20515 20520 20530 20535 20540 20542 20551 20560 20565 20566 20591 20260

Business Nexus in District of Columbia

Economic Nexus Threshold

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

FAQ: Washington Sales Tax

The combined sales tax rate in Washington, District of Columbia is 6.000% as of 2026.

Multiply your purchase price by 6.000% to find the tax owed. A $500 purchase would include $30.00 in sales tax.

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

Vehicle purchases in Washington are subject to the 6.000% combined rate, though some states apply different rules for vehicle sales. Verify with the District of Columbia Department of Revenue or DMV.

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

Sales Tax Calculator

Using 6.000% rate for Washington, DC

Purchase Amount ($)

Tax Amount $0.00

Total with Tax $100.00

Rate applied: 6.000% combined

Official Tax Authority

DC Office of Tax and Revenue

Filing Deadline: Monthly returns due the 20th of the following month. File via MyTax.DC.gov.

Visit Official Portal (202) 727-4829