Washington State Tax Guide for Businesses & Individuals 2026
Washington State offers a unique tax environment — no corporate or individual income tax, but a robust Business & Occupation (B&O) tax on gross receipts and one of the highest combined sales tax rates in the US. This guide covers every Washington state tax obligation for businesses and individuals in 2026, from B&O and sales tax to payroll, property tax, and the new capital gains tax.
Quick Reference: Washington Tax Rates at a Glance
| Tax Type | Rate / Details |
|---|
| State Corporate Income Tax | None (B&O tax applies instead) |
| State Individual Income Tax | None (Capital Gains Tax: 7% on gains over $262,000) |
| State Sales Tax Base Rate | 6.5% |
| Average Combined Sales Tax | ~9.38% (state + local) |
| B&O Tax Rate Range | 0.138% – 1.75% (varies by business classification) |
| SUI/SUTA Rate Range | 0.27% – 6.02%; New Employer Rate: 1.0% |
| Effective Property Tax Rate | ~0.84% average |
| Estate / Inheritance Tax | Yes — Estate Tax; threshold $2,193,000 (2026) |
1. Washington Business Tax Nexus
What is Tax Nexus in Washington?
Nexus determines whether a business has sufficient presence in Washington to be subject to state tax obligations, including B&O tax, sales tax collection, and payroll tax withholding.
Physical Nexus
- Office, store, or other place of business in Washington
- Employees, agents, or independent contractors working in the state
- Inventory stored in Washington, including FBA fulfillment centers
- Owned or leased vehicles or equipment operating in Washington
- Construction or installation activities performed in the state
Economic Nexus (Remote Sellers)
| Threshold Type | Details |
|---|
| Sales Threshold | $100,000 in cumulative gross sales into Washington |
| Transaction Count | No separate transaction threshold |
| Effective Date | October 1, 2018 |
| Lookback Period | Current or prior calendar year |
Click-Through & Affiliate Nexus
Washington enforces click-through and affiliate nexus. A business establishes nexus if it has agreements with Washington residents who refer customers via links in exchange for a commission, and cumulative receipts exceed $10,000 in the prior 12 months.
2. Washington State Income Tax
Corporate Income Tax
Washington does not impose a traditional corporate income tax. Instead, businesses are subject to the Business & Occupation (B&O) tax, a gross receipts-based tax with rates depending on the type of business activity. There is no apportionment formula, no combined reporting requirement, and no minimum franchise tax in the traditional sense.
Capital Gains Tax (Individuals)
| Rate | Threshold | Applies To |
|---|
| 7% | Gains exceeding $262,000 (2026, adjusted annually) | Long-term capital gains on stocks, bonds, and other assets |
| Exempt | All amounts | Real estate, retirement accounts, timber, commercial fishing privileges |
Individual Income Tax
Washington has no general state individual income tax on wages, salaries, or business income. The capital gains excise tax (7%) applies only to long-term capital gains above the annual threshold.
Filing Deadlines
| Return Type | Due Date | Extension |
|---|
| B&O / Combined Excise Tax Return (Monthly filers) | 25th of following month | No automatic extension |
| B&O / Combined Excise Tax Return (Quarterly filers) | April 25, July 25, October 25, January 25 | No automatic extension |
| B&O / Combined Excise Tax Return (Annual filers) | April 15 | No automatic extension |
| Capital Gains Tax Return | April 15 | 6-month extension available |
3. Washington Sales Tax
State Sales Tax Rate
Washington imposes a 6.5% state sales tax. When combined with local sales taxes, the average combined rate is approximately 9.38%, making it one of the highest in the nation. Local rates vary by city and county.
Taxable vs. Exempt Goods & Services
| Category | Taxable? | Notes |
|---|
| Tangible Personal Property | ✅ Taxable | All tangible goods are taxable unless specifically exempt |
| SaaS / Digital Products | ✅ Taxable | Digital products, downloaded software, and SaaS are subject to sales tax |
| Groceries / Food | ✅ Taxable | Unprepared food is taxable in Washington (unlike most states) |
| Prescription Drugs | ❌ Exempt | Prescription drugs and certain medical devices are exempt |
| Clothing | ✅ Taxable | All clothing is taxable; no exemption for general apparel |
| Manufacturing Equipment | ⚠️ Partial | Machinery used in manufacturing may qualify for exemption or reduced rate |
| Professional Services | ❌ Exempt | Most professional services are not subject to sales tax (B&O tax applies) |
Sales Tax Permits & Registration
- Registering Agency: Washington Department of Revenue (DOR) — dor.wa.gov
- Cost to Register: No fee for sales tax registration; $90 Master Business Application fee for new business license
- Renewal Requirement: Business license renews annually; sales tax permit does not require separate renewal
Filing Frequency & Deadlines
| Annual Tax Liability | Filing Frequency | Due Date |
|---|
| Less than $2,400/year | Annual | April 15 |
| $2,400 – $4,800/year | Quarterly | 25th of month following quarter end |
| Over $4,800/year | Monthly | 25th of following month |
Local Sales Tax Rates (Top 5 Cities/Counties)
| Jurisdiction | Local Rate | Combined Rate |
|---|
| Seattle (King County) | 3.6% | 10.1% |
| Tacoma (Pierce County) | 2.8% | 9.3% |
| Spokane | 2.5% | 9.0% |
| Bellevue (King County) | 3.6% | 10.1% |
| Vancouver (Clark County) | 2.7% | 9.2% |
4. Washington Payroll Tax & Compliance
Employer Payroll Tax Obligations
| Tax / Obligation | Rate / Details |
|---|
| State Income Tax Withholding | None — Washington has no state income tax withholding |
| SUI/SUTA Rate Range | 0.27% – 6.02% |
| SUI Taxable Wage Base | $72,800 (2026) |
| New Employer SUI Rate | 1.0% (most industries) |
| Workers' Compensation | State fund (L&I); rates vary by industry risk class |
| Paid Family & Medical Leave (PFML) | 0.92% of gross wages; employer pays 28.57%, employee pays 71.43% (employers with 50+ employees); small employers may pay employee portion only |
| Long-Term Care (WA Cares Fund) | 0.58% of gross wages; employee-paid; employer remits |
Withholding Registration & Filing
- Registration Agency: Washington Employment Security Department (ESD) — esd.wa.gov
- Filing Frequency: Quarterly UI tax and wage reports due the last day of the month following each quarter
- PFML Reporting: Quarterly; due April 30, July 31, October 31, January 31
- Annual Reconciliation: Not required (no state income tax withholding)
- New Hire Reporting Deadline: Within 20 days of hire; report to Washington New Hire Reporting Center
Minimum Wage
| Category | Rate (2026) |
|---|
| Standard Minimum Wage | $16.66 per hour |
| Tipped Employee Rate | $16.66 per hour (no tip credit; full minimum wage applies) |
| Youth / Training Wage | $13.84 per hour (workers under 16; first 90 days) |
| Seattle Minimum Wage | $20.76 per hour (large employers) |
| Next Scheduled Increase | Adjusted annually each January 1 based on CPI |
5. Washington Property Tax
Washington property taxes are administered at the county level. Key details for 2026:
- Assessment Ratio: 100% of fair market value
- Effective Average Rate: ~0.84% of assessed value
- Assessment Cycle: Annual revaluation required at least every 4 years; many counties revalue annually
- Appeal Deadline: Petition to the County Board of Equalization by July 1 or within 30 days of assessment notice
Business Personal Property Tax
- Washington taxes business personal property including equipment, machinery, furniture, and computers
- Form: Personal Property Tax Listing Form (County Assessor form)
- Filing Deadline: April 30 annually
- Exemption Threshold: $15,000 or less in total personal property value is exempt
Homestead & Other Exemptions
| Exemption Type | Benefit | Eligibility |
|---|
| Senior/Disabled Persons | Reduction in assessed value / frozen value; up to $70,000 exemption | Age 61+ or disabled; income under $40,000/year |
| Veteran / Disabled Veteran | Up to $125,000 property value exemption | 100% service-connected disability rating |
| Current Use / Agricultural | Assessed at current use value (lower than market) | Land used for farming, timber, or open space |
| Non-Profit Organizations | Full exemption on qualifying property | Religious, charitable, or educational use |
Property Tax Due Dates
| Installment | Due Date | Notes |
|---|
| First Half | April 30 | Full year may be paid by April 30 |
| Second Half | October 31 | No discount for early payment |
6. Other Key Washington Taxes
Business & Occupation (B&O) Tax
| Business Classification | B&O Rate |
|---|
| Retailing | 0.471% |
| Wholesaling | 0.484% |
| Manufacturing | 0.484% |
| Service & Other Activities | 1.75% |
| Royalties | 0.484% |
| Extracting | 0.484% |
The B&O tax has no deductions for cost of goods sold or business expenses. It is based on gross receipts. The Small Business B&O Tax Credit applies if annual B&O tax liability is under $55 (single classification) or $70 (multiple classifications).
Gross Receipts Tax
Washington's B&O tax functions as a gross receipts tax. There is no separate "gross receipts tax" beyond the B&O system. All businesses with Washington-sourced gross receipts must file a Combined Excise Tax Return (CETR) with the DOR.
Excise Taxes
| Category | Rate |
|---|
| Gasoline | $0.494 per gallon |
| Diesel | $0.494 per gallon |
| Cigarettes | $3.025 per pack (20 cigarettes) |
| Beer | $0.26 per gallon |
| Wine | $0.87 – $2.84 per liter (varies by alcohol content) |
| Cannabis | 37% excise tax at retail (legal) |
7. Washington Tax Credits & Incentives
| Credit / Incentive | Value / Rate | Eligibility |
|---|
| R&D B&O Tax Credit | Credit against B&O tax for qualifying R&D expenditures | Businesses conducting qualified research in Washington |
| High-Technology B&O Credit | Up to $2 million credit per year | High-tech businesses with Washington-based R&D spending |
| Manufacturing Sales Tax Exemption | Exemption on machinery, equipment, and parts | Manufacturers purchasing qualifying equipment for use in production |
| Data Center Tax Incentives | Sales tax exemption on servers and equipment | Qualifying data centers meeting investment and employment thresholds |
| Rural County B&O Credit | Reduced B&O tax rate or credit for new jobs | Businesses creating jobs in designated rural counties |
| Small Business B&O Tax Credit | Full B&O credit if tax due is under $55–$70 | Small businesses with limited annual gross receipts in Washington |
| Clean Energy Investment Credit | Variable; tax preference for renewable energy projects | Solar, wind, and other clean energy manufacturers and developers |
8. How to Register a Business in Washington
- Choose Your Business Structure: Select LLC, corporation, partnership, or sole proprietorship based on liability, tax, and operational needs.
- Register with Secretary of State: File formation documents at the Washington Secretary of State — sos.wa.gov. Filing fees: LLC $200 online; Corporation $200 online.
- Obtain an EIN from the IRS: Apply for a Federal Employer Identification Number at irs.gov — free and immediate online.
- Apply for a Washington Business License: Register through the Department of Revenue's Business Licensing Service — bls.dor.wa.gov. $90 Master Business Application fee covers most state licenses.
- Register for State Tax Accounts: Your Business License registration automatically activates your B&O tax and sales tax accounts with DOR. Register separately for SUI with Employment Security Department (ESD) and for PFML/WA Cares reporting.
- Obtain Required Licenses and Permits: Industry-specific licenses (contractor, food service, healthcare, etc.) through the Washington Department of Licensing — dol.wa.gov.
- Register for Local Business License: Many cities (Seattle, Tacoma, Spokane) require a separate local business license. Contact your city's licensing office for requirements and fees.
9. Key Washington Tax Agencies & Resources
| Agency | Responsibility | Website |
|---|
| Washington Department of Revenue (DOR) | B&O tax, sales tax, use tax, excise taxes, business licensing | dor.wa.gov |
| Employment Security Department (ESD) | Unemployment insurance (SUI/SUTA), PFML reporting | esd.wa.gov |
| Department of Labor & Industries (L&I) | Workers' compensation, WA Cares Fund, wage and hour compliance | lni.wa.gov |
| Washington Secretary of State | Business formation, registration, and annual reports | sos.wa.gov |
| Washington Board of Tax Appeals | Tax appeals and dispute resolution for DOR decisions | bta.wa.gov |
Manage Your Washington State Tax Compliance with Filings.us
Washington's tax system — with its B&O tax, high combined sales tax, PFML obligations, and new capital gains tax — requires precise tracking and timely filing. Filings.us simplifies every aspect of Washington business compliance:
- Register your LLC or corporation with the Washington Secretary of State quickly and accurately
- Set up your Washington sales tax and B&O tax accounts and automate your Combined Excise Tax Return filings
- Manage payroll tax, PFML, and WA Cares Fund reporting to stay compliant with all employer obligations
- Receive automated deadline alerts for B&O tax, sales tax, property tax, UI quarterly reports, and capital gains tax filings
Get started at filings.us today and keep your Washington business fully compliant in 2026.
Note: This guide is for informational purposes only and does not constitute legal or tax advice. Consult a licensed tax professional for advice specific to your situation.
