If you run a small business in Washington state, there's a decent chance you've been filing a Business & Occupation (B&O) tax return every quarter (or every month) for years, even though the amount you actually owe rounds to close to zero. Washington doesn't have a personal or corporate income tax, so the B&O tax — a gross receipts tax that applies to almost every kind of business activity — is one of the few levers the state has to fund itself, and it catches businesses of nearly every size.
That changed on July 1, 2026. Under tax legislation enacted by the Washington Legislature this year, the state raised the annual gross income threshold below which a business doesn't have to file a B&O return at all — from $125,000 to $250,000 — and significantly increased the small business B&O tax credit that already shields many low-revenue businesses from owing anything even above that line. If you're a freelancer, a solo consultant, a small retailer, or you're running a side business that's grown past "hobby" but not yet past "real revenue," this is worth five minutes of your time to understand.
The Two Changes That Matter
1. The filing threshold doubled. Businesses with less than $250,000 in annual gross (taxable) income no longer need to file a B&O excise tax return, up from the previous $125,000 threshold. That's a real compliance simplification — no more quarterly filings, no more remembering due dates, no more penalty notices for a return that would have reported $0 owed anyway, as long as your gross income stays under the new line.
2. The small business B&O tax credit got a raise. Even businesses that do have to file can often zero out their B&O liability using the state's small business credit, which offsets tax owed dollar-for-dollar up to a monthly cap. That cap just went up. Under the prior rules (in place since 2023), the maximum credit was $320 a month for "service and other activities" businesses (consultants, professionals, and similar service providers) and $110 a month for nonservice businesses (retailers, wholesalers, manufacturers, and most other classifications). Effective July 1, 2026, those caps rise to $375 a month for service businesses and $125 a month for nonservice businesses.
Put together, the two changes work in tandem: the higher filing threshold keeps the smallest businesses out of the paperwork entirely, and the richer credit means that businesses just above that threshold — who still have to file — are more likely to owe nothing once the credit is applied.
Do You Still Need to File?
Here's where it's easy to get tripped up: the $250,000 threshold is about filing, not necessarily about whether B&O tax applies to your business type at all. A few things to keep straight:
- If your annual gross income is under $250,000, you generally don't need to file a B&O return going forward. That's a meaningful change from the $125,000 line that's been in place for years — plenty of freelancers, single-person LLCs, and small side businesses that used to have to file (and often owed nothing) can now skip the filing requirement entirely.
- "Gross income" means gross receipts, not profit. B&O tax is calculated on revenue before you subtract expenses, cost of goods sold, or anything else. A business with $240,000 in gross sales but a thin margin is still under the new threshold; a business with $260,000 in gross sales but a big loss is still over it.
- You may still need a Washington business license and Unified Business Identifier (UBI) number, and other tax obligations — like retail sales tax collection, if you sell taxable goods or services — don't disappear just because your B&O filing requirement does. The threshold change is specific to the B&O excise tax return; check with the Department of Revenue or your accountant before assuming you're off the hook for everything.
- If you cross $250,000 partway through the year, you'll generally need to start filing going forward — this isn't a one-time exemption, it's an ongoing annual test.
If you're not sure whether you're still required to file, the safest move is to check your status directly with the Washington Department of Revenue rather than guess based on last year's numbers.
The Small Business Credit, With Real Numbers
For businesses that do file, the small business credit is where the bigger dollar impact usually shows up — especially for businesses whose gross income sits somewhere between the new $250,000 filing threshold and, say, $500,000 or so, where B&O liability before the credit is still relatively small.
Here's how the credit works in practice. Washington splits businesses into two credit tiers based on their primary activity:
- Service businesses (consultants, freelancers, professional services, and similar) — the credit that applied here rose from a $320-a-month cap to a $375-a-month cap.
- Nonservice businesses (most retail, wholesale, and manufacturing activity) — the credit rose from a $110-a-month cap to a $125-a-month cap.
The credit offsets B&O tax owed dollar-for-dollar up to that cap. If your monthly B&O liability, before the credit, is at or below the cap for your business type, you owe nothing — the credit wipes it out completely. If your liability is higher than the cap, the credit still reduces what you owe by the full capped amount; you just pay tax on the difference. If you file quarterly or annually instead of monthly, the same logic applies at a proportionally higher threshold, since the credit scales with your filing frequency.
A one-person consulting business generating modest revenue that's still above the $250,000 filing threshold, for example, could easily see its entire B&O liability absorbed by the higher $375 monthly service-business credit — meaning it still has to file a return, but the return can show $0 owed. That's a meaningfully bigger buffer than the $320 cap that applied through June 2026.
The Department of Revenue's e-file system calculates the credit automatically when you file electronically, so you don't need to do the math by hand — but it's worth understanding the mechanics so you can sanity-check the return and budget accordingly, rather than being surprised by whether you owe anything at quarter's end.
A Few Other Changes Bundled Into the Same Bill
The 2026 legislation carrying these small-business provisions also made changes that mostly affect larger or more specialized businesses, but they're worth knowing about if any apply to you:
- The 0.5% B&O surcharge on very large businesses (those with more than $250 million in taxable income) now exempts several specific categories, including hospitals, licensed health care provider services, wholesale food sales, and drug warehousing and resale operations. This won't affect most small businesses, but it matters if you're a larger operator in one of those sectors.
- The B&O exemption for insurance-related activity narrowed. It now applies only to the entity that actually paid the insurance premium tax, not to insurance businesses more broadly — and the change applies retroactively to October 2019, with penalty and interest waivers available for affected businesses through the end of 2026. If you're in the insurance industry, this one deserves a closer look with your tax advisor sooner rather than later.
- A separate set of service-tax repeals — covering things like software customization, IT consulting, and staffing services — is scheduled for 2029, and is contingent on the state's income-tax-related legal challenges playing out a certain way. It's far enough out, and conditional enough, that it's not something to plan around yet, but it's a sign the state is still actively reworking how it taxes services.
What To Do Now
- Check your trailing twelve months of gross income against $250,000. If you're comfortably under it, confirm with the Department of Revenue (or your bookkeeper) whether you can stop filing B&O returns, and update your compliance calendar accordingly.
- If you're still filing, recompute your expected small business credit using the new caps ($375/month service, $125/month nonservice) so you're not caught off guard by what you actually owe — or don't owe — on your next return.
- Don't confuse "no B&O filing requirement" with "no other tax obligations." Business licensing, retail sales tax collection, and other state and local requirements are separate from the B&O threshold and don't move just because this one did.
- If you're near the $250,000 line, watch it closely for the rest of the year. Crossing it mid-year changes your filing obligations going forward, and it's much easier to catch that in real time than to reconstruct it after the fact.
Keep Your Finances Organized as the Rules Shift
Threshold changes like this one are exactly the kind of thing that's easy to miss if your bookkeeping isn't built to answer "what's my trailing twelve-month gross income?" on demand. Beancount.io offers plain-text accounting that gives you complete transparency and control over your financial data — every transaction is a line you can query, not a number buried in someone else's dashboard. Get started for free and see why developers and finance professionals are switching to plain-text accounting.