included
Advisory
Monthly performance reports and a standing conversation about pricing, hiring, and cash flow. Not billed by the hour.
How advisory worksServing Seattle
Accounting, payroll, and tax for Seattle businesses
Seattle is the most expensive city in Washington to get your compliance wrong. It is also where proactive advice pays for itself fastest.
Seattle, Washington
Built for how Seattle does business
Seattle service businesses carry the state's heaviest stack: the city's own B&O tax, the highest minimum wage in the country among major cities, dense licensing, and labor rules that change more often than most owners can track. Agencies, firms, studios, and practices here do excellent work and then leak margin to administrative friction.
The local tax picture
The Seattle stack is real: city B&O, Washington state B&O, destination-based sales tax, and payroll obligations that reward getting it right the first time. The city B&O rules just changed in a big way: on January 1, 2026 the threshold jumped from $100,000 to $2 million of annual gross receipts, so many smaller firms stopped owing Seattle B&O entirely, while rates went up for everyone above the line. Knowing which side of that line you sit on, and pricing for it, is exactly the kind of thing we watch.
Who we serve in Seattle
- Agencies and consultancies
- Law and professional practices
- Healthcare and optometry
- Skilled trades working in the city
One package
What Seattle businesses get for a flat monthly fee
Accounting
Books reconciled monthly in QuickBooks Online, reports in plain English, state and any city B&O filings handled.
Monthly accountingPayroll
Your team paid on time with every payroll tax filed, from Form 941 to L&I to year-end W-2s.
Payroll serviceTax
Liability projected during the year, moves made before deadlines, returns filed. Your April number, never a surprise.
Tax planning & prepSeattle
Advice that travels. Federal Way to Seattle.
Straight answers
Seattle questions, answered
Does Seattle have its own B&O tax?
Yes, once annual gross receipts pass $2 million. Voters raised the threshold from $100,000 to $2 million effective January 1, 2026 and raised the rates above it. Under $2 million, you may owe no Seattle B&O at all; over it, the higher rates belong in your pricing. We prepare and file both city and state.
Is Seattle payroll really that different?
It is stricter than everywhere nearby: the city's minimum wage, paid sick and safe time rules, and scheduling rules for some industries. Our payroll service prices those rules in so your labor costs are known, not discovered.
Do we need to be near your office?
No. Seattle clients work with us over video and a shared QuickBooks file, and you are always welcome to swing by our Federal Way office. We would rather save you the I-5 traffic than make meetings a commute.
Nearby
Also serving businesses near Seattle
Talk to an advisor who knows Seattle
30 minutes, your latest financials or tax return, and you leave with your numbers and a straight answer on fit.
From the Learning Center
Keep reading: washington taxes
Our clients' reviews
Here is what they say about working with us
Jose is a total pro and I can’t recommend him enough. He’s my go-to source for all business-related tax or accounting questions. You can tell how much he cares about the work he does for his clients and the level of detail as passion he puts into his work. He’s always keeping up on the latest tax laws and changes to the small business landscape and it shows in the advice he gives. I highly recommend!!
Excellent communication with accounts, top notch work. I really appreciate how through their work is and confidential. I highly recommend Caro & Associates, LLC.
Professional, highly efficient, operates with utmost integrity, amazing work-ethic, eloquent communication, highly-trained, incredibly knowledgeable, reliable, and highly respected by other accountants in his field who turn to him for advice.