Washington’s state sales tax rate is 6.5%. Local rates push the total as high as 10.7% in some cities, with Seattle sitting near 10.55%.
| State taxing authority | Washington Department of Revenue |
|---|---|
| Washington sales tax rate | 6.5% |
| Local tax rates | Vary by location; typically add 1.1% to 4.2% |
| Combined sales tax rate range | Approximately 7.6% to 10.7% |
| Economic nexus threshold | More than $100,000 in combined gross receipts sourced or attributed to Washington in the current or prior calendar year |
| Website | dor.wa.gov |
| Tax line | 360-705-6705 |
Washington’s state sales tax rate is 6.5%. Local rates push the total as high as 10.7% in some cities, with Seattle sitting near 10.55%. Rates fluctuate by the exact address, city, county, and special districts such as regional transit authorities.
For most businesses selling into Washington, the compliance picture is broader than the rate table alone. The state pairs retail sales tax with a separate Business & Occupation (B&O) tax on gross receipts. It treats remote-access software and digital products as taxable.
Washington pairs a relatively high state rate with significant local add-ons that differ by city and district. Destination-based sourcing applies, so the rate follows the buyer’s delivery location rather than the seller’s address.
Most tangible personal property is taxed. Remote-access software (SaaS), digital goods, and digital automated services are usually taxable.
Effective October 1, 2025, the state expanded the sales tax base to many previously exempt services, including certain IT work, advertising, temporary staffing, and custom software.
A business should collect once it has a physical presence or exceeds the $100,000 economic nexus threshold of total gross receipts. That threshold counts marketplace sales, exempt sales, wholesale activity, and other receipts sourced to Washington.
Registration takes place through the state’s business license application process, which issues a Unified Business Identifier. Sales tax is reported together with B&O and other taxes on the combined excise tax return via My DOR.
Washington has a gross receipts Business & Occupation (B&O) tax in addition to the retail sales tax. B&O is a tax on the business itself, not collected directly from customers. Rates vary by classification. Retailing is quite low at 0.471%. Service classifications are higher.
This distinction matters for ecommerce and marketplace sellers. Even when a marketplace facilitator collects and remits sales tax, the seller may still have B&O reporting and payment obligations once it meets Washington nexus thresholds. Marketplace sales count toward the B&O threshold.
Remote sellers that cross the $100,000 gross receipts threshold usually must register and report B&O on the same combined excise tax return used for sales tax.
A “No Local Activity” deduction may be available in limited cases when the seller has no in-state physical presence for B&O purposes, but the registration and reporting obligation itself still applies.
On the state level, the rate is 6.5%. Local jurisdictions add 1.1% to 4.2%, for combined rates of 7.6% to 10.7%.
Specific districts, Regional Transit Authority (RTA), Public Transportation Benefit Area (PTBA), Hospital Benefit Zone (HBZ), and others can layer additional increments on top of city and county rates.
Rates change by exact address, zip+4, city, county, and special districts.
Use the Department of Revenue’s Tax Rate Lookup Tool or the searchable local rate table for the precise rate and location code that applies to any address. Location codes are required when reporting local tax on the excise return.
| City | Combined Rate |
|---|---|
| Seattle | 10.55% |
| Tacoma | ~10.5% |
| Bellevue | ~10.3% |
| Spokane | ~9.1% to 9.2% |
| Vancouver | ~8.9% to 9% |
| Bellingham | ~9.2% |
| Olympia | ~9.5% to 10% |
| Everett | ~9.9% |
| Kent | ~10.4% |
| Lynnwood and Edmonds area | Up to ~10.7% |
Multiply the taxed selling price by the combined state and the local rate that applies to the destination (or point of delivery). A $100 taxable sale delivered to a 10.55% location produces $10.55 in tax.
Washington uses destination-based sourcing. That means tax is calculated based on where the buyer gets the product or service, not on the seller’s location. This rule is applicable to most of the retail sales of tangible personal property and to many services.
>> Read more: Origin vs. destination-based soucing
Yes, Washington is a member of the Streamlined Sales and Use Tax Agreement. Remote sellers can register through the Streamlined Sales Tax Registration System if desired, though many register directly with Washington’s Business License process and My DOR.
Nexus means you have enough connections with a state that the state can require you to collect sales tax on its behalf.
Before 2018, states couldn’t require out-of-state sellers to charge the state sales tax on online purchases. In South Dakota v. Wayfair, Inc., the U.S. Supreme Court overturned that precedent, and states with a sales tax began setting nexus thresholds.
Physical and economic nexus are the two that matter for most businesses selling into Washington.
States each have their own threshold for establishing nexus, but in general, a business has physical nexus if it has a physical presence in the state, like an office, warehouse, employees, or inventory.
Washington’s physical-presence standard is broad. Inventory kept in the state, even held by the marketplace facilitator or third-party warehouse, can create nexus. Employees, agents, offices, and other in-state activity also count.
Economic nexus means an out-of-state business meets the dollar or transaction limit required for charging sales tax to customers in that state.
If you're looking for help with this, check out Numeral’s free nexus monitoring tool which tracks sales against Washington thresholds automatically.
| Nexus Type | Threshold |
|---|---|
| Physical | Any relevant physical locality, office, warehouse, employees, inventory (including inventory stored by a marketplace facilitator or third-party warehouse), or agents performing market-maintaining activities |
| Economic | More than $100,000 in combined gross receipts sourced or attributed to Washington in the current or prior calendar year; includes taxable sales, exempt sales, wholesale sales, marketplace sales, services, and other activities |
| Marketplace | Marketplace facilitators that exceed the threshold must collect and remit on facilitated sales. Those sales still count toward the seller’s own threshold for registration and B&O tax purposes. |
| Click-through | None. Washington repealed this in 2019. |
| Affiliate | None. Washington repealed this in 2017. An agent or representative working for you in the state can still count as physical presence. |
The $100,000 threshold includes total gross receipts sourced or attributed to Washington, not just taxable retail sales. Marketplace-facilitated sales are included. Exempt sales and wholesale activity also count.
Crossing the threshold creates both sales tax collection and B&O reporting obligations.
Most sales of tangible personal property to end users are taxable. Digital products, remote-access software, and many services are also taxable. Washington’s base is broader than many states, especially after the 2025 expansion.
Washington has no broad clothing exemption like those in a few other states. Groceries for home consumption are generally exempt, while prepared food is taxable.
Prescription drugs are exempt. Most other tangible goods are taxable unless a specific exemption applies.
| Category | Generally Taxable? | Notes |
|---|---|---|
| Tangible personal property | Yes | Most physical goods unless specifically exempt |
| Groceries | No (most) | Food for home consumption generally exempt; prepared food taxable |
| Clothing | Yes | No broad clothing exemption |
| Prescription drugs | No | Generally exempt |
| SaaS or remote-access software | Yes | Treated as a taxable retail sale |
| Digital goods | Yes | Broadly taxable |
| Services | Varies | Expanded significantly Oct. 1, 2025 |
| Shipping and delivery | Yes (if product taxable) | Generally included in the taxable selling price |
Since Oct. 1, 2025, a law called ESSB 5814 has made several services subject to sales tax: advertising, information technology, custom website development, temporary staffing, investigation/security/armored car services, live presentations, and custom software (including customization of prewritten software).
A 2026 law, ESSB 6346, rolls much of this back in two steps:
These rules have changed several times, so check the Department of Revenue's services newly subject to retail sales tax page for current treatment.
Digital goods and digital automated services are generally subject to sales and use tax whether downloaded, streamed, or provided by subscription.
Custom software has more nuanced rules after the 2025 changes. The distinction between prewritten software, remote-access software, custom software, and digital automated services matters for both sales tax and B&O classification.
Numeral's guide to SaaS taxability in Washington gives more details on this.
Washington uses state-issued reseller permits, not conventional resale certificates.
Reseller permits are usually valid for four years. Some businesses, contractors, newer businesses, or those with filing issues get two-year permits.
Sellers should get a copy of the buyer's reseller permit at the time of sale, or within 120 days after, and keep it for five years.
Out-of-state buyers who aren't required to register in Washington can give a Multistate Tax Commission uniform certificate or a Streamlined Sales Tax Certificate of Exemption instead.
Businesses register for Washington sales tax through the state’s Business License Application process. Successful applicants get a Unified Business Identifier (UBI) number. Sales tax registration is then handled as part of this process rather than as a totally separate “sales tax permit.”
Apply online via My DOR or the Business Licensing Service.
The processing fee to open a business is $50, plus any endorsement fees. City endorsements are added through the same application, and licenses with endorsements renew annually for a $5 processing fee.
The Department assigns a filing frequency based on estimated liability or activity. After registration, businesses receive account information and instructions for accessing My DOR to file returns.
Sellers from out of state should register once they have exceeded $100,000 in combined gross receipts sourced or attributed to Washington in the current or prior calendar year, or once they have a physical presence.
Collection must begin on the first day of the month that starts at least 30 days after the seller crosses the threshold.
Once registered, everything is pretty much straightforward. You must determine if the transaction is taxable, identify the right destination rate and location code, collect the tax from the customer, and then retain records for reporting on the combined excise tax return.
Remember that details matter. Destination sourcing needs more accurate address data.
Digital products and remote-access software follow specific sourcing rules. Services newly made taxable in 2025 require sellers to update product taxability mappings and customer communications.
Marketplace facilitators that meet the threshold collect and remit sales tax on facilitated transactions. Sellers aren’t mandated to collect a second time on those sales. Sellers should still track marketplace sales for nexus and B&O purposes and collect only on any direct (non-facilitated) sales.
Stock stored in Washington, which includes FBA-style arrangements, can create a physical nexus even when the seller never visits the state. Marketplace sellers should confirm how their storage and fulfillment arrangements are treated under the current Department guidance.
Shipping charges are part of the taxable selling price when the underlying product is taxable. Separately stated charges don’t automatically escape tax.
When a shipment includes taxable and exempt items, tax applies only to the portion of the delivery charges allocated to the taxable goods. Allocation might be based on the sales price or weight. Sellers should record the method used.
Sales tax is reported on the state’s combined excise tax return together with B&O and other applicable taxes. In most cases, filing and payment are done electronically through My DOR.
| Filing Frequency | General Guideline |
|---|---|
| Monthly | Annual tax liability over $4,800 |
| Quarterly | $1,051 to $4,800 |
| Annual | $1,050 or less |
If a due date falls on a weekend or legal holiday, it moves to the next business day.
Exact assignment is made by the Department and is based on estimated or actual activity.
Monthly returns are due the 25th of the following month. Quarterly returns are due the last day of the month following the quarter. Annual returns are typically due April 15.
Zero returns are required when there is no activity in a period for which a return is assigned. Missing a zero return can still generate penalties and notices.
My DOR is the go-to portal for registration management, return filing, and payments. Local sales tax is reported on the same return using the correct location codes; most jurisdictions have no other filing path.
See Numeral's step-by-step guide to filing Washington sales tax online.
Usually, late payment triggers a stepped penalty: 9% of the tax if paid after the due date, rising to 19% if still unpaid by the end of the following month, and 29% if unpaid by the end of the second month. A minimum of $5 applies.
Interest accrues on the unpaid balances at a rate set annually by the Department. Substantial underpayment and other penalties can be applied. Sales tax collected but unremitted is trust-fund money and could create personal liability for responsible persons.
The Department has offered limited temporary penalty relief related to the Oct. 1, 2025 service expansion for businesses that come forward. Taxes and interest stay due. Businesses with potential exposure should review the Voluntary Disclosure Program and Penalty Relief Program on the Department’s site.
Keep everything properly documented, from reseller permits and exemption documentation to returns and payment records. Sellers should retain reseller-permit documentation for five years after the sale.
The department might audit to verify reported sales, taxability determinations, rates, exemptions, and amounts collected.
An administrative appeals process is available for disputed assessments. Good records, especially destination data, exemption certificates, and product taxability support, are the best defense in an audit.
Washington combines a high combined rate structure, destination sourcing, broad digital and service taxability, a 2025 service-based expansion, and a separate B&O gross receipts tax.
In addition, marketplace sellers face the extra complexity of tracking sales for B&O even when facilitators handle retail sales tax.
Numeral can make handling all of that easier. Our nexus monitoring tracks the $100,000 gross receipts threshold (including marketplace volume). Registration, rate calculation, filing and remittance, and exemption certificate management are handled end-to-end.
Every filing is reviewed by a U.S.-based tax expert before submission and backed by the Numeral Guarantee. If a filing error on Numeral’s part causes penalties or interest, Numeral covers the cost.
Get started with Numeral to put Washington sales tax and B&O compliance on autopilot.
What is the sales tax rate in Washington?
The state rate is 6.5%. Combined rates with local add-ons typically range from 7.6% to 10.7%, depending on the exact delivery location. Always confirm with the official address lookup tool.
What is the economic nexus threshold in Washington?
The economic threshold is reached when you have more than $100,000 in combined gross receipts sourced or attributed to Washington in the current or prior calendar year. Marketplace, exempt, and wholesale sales are included.
Are services taxable in Washington?
Many are. The base expanded significantly on Oct. 1, 2025, to include various IT, advertising, staffing, security, custom-software, and related services.
Is SaaS taxable in Washington?
Yes. Remote-access software (prewritten software accessed remotely) is treated as a taxable retail sale.
Are digital products taxable in Washington?
Yes. Digital goods and digital automated services are generally taxable whether downloaded, streamed, or provided by subscription.
Does Washington charge sales tax on shipping and delivery?
Yes, when the underlying product is taxable. Delivery charges form part of the taxable selling price even if separately stated.
Do I need a sales tax permit in Washington?
Yes, once a nexus exists. Registration occurs through the Business License Application process and results in a UBI. Sales tax is reported on the combined excise tax return along with B&O.
Do marketplace sellers need to collect sales tax in Washington?
Not on sales for which the marketplace facilitator already collects and remits. Sellers must still track those sales for nexus and B&O purposes and collect on direct sales.
How often do businesses need to file sales tax returns in Washington?
Monthly, quarterly, or annually, as assigned by the Department based on estimated tax liability or activity level. Zero returns are required for periods with no activity when a return is assigned.
Are groceries and clothing taxable in Washington?
Most groceries for home consumption are exempt. Clothing is generally taxable; there is no broad clothing exemption.
Does a marketplace facilitator collecting sales tax eliminate my B&O obligation?
No. Marketplace collection of sales tax does not eliminate the seller’s obligation to register and report B&O once the gross receipts threshold is met. Marketplace sales still count toward that threshold.
For sales tax filing and appeals in Washington, you would contact:
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