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Best CPA Firm in Seattle, WA for Small Business Taxes and Accounting

Tax Preparation, Accounting, and Payroll, Done Right the First Time

Running a business in Seattle means navigating complex tax rules, payroll deadlines, and year-round accounting demands that most owners never signed up for. At Dimov Tax, our Seattle CPAs handle all of it so you can stay focused on growing your business instead of drowning in paperwork. We work directly with business owners and individuals across Seattle and Washington State, learning your financials inside and out. Our tax accountants know the local requirements, spot deductions others miss, and build filing strategies designed around your specific situation, not a generic template.From small business tax preparation and payroll to full-service bookkeeping and accounting, we cover every piece of the financial puzzle. And because we work with you year-round, not just at tax time, we catch problems early and keep your books clean all year long. If you are looking for a CPA firm in Seattle that treats your money like their own.

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Rated 5 out of 5
"Highly Recommended for Complex Tax Situations I worked with Dimov Tax to prepare both my personal and business tax returns, and I was thoroughly impressed. My situation was fairly complex—LLC structure, multiple investment properties, and a range of personal considerations—and they handled it with professionalism and precision. They were responsive, knowledgeable, and took the time to understand the nuances of my financial landscape. I never felt rushed or overlooked; instead, they asked thoughtful questions and offered clear guidance throughout the process. If you're looking for a tax firm with the right expertise and a client-focused approach, I highly recommend Dimov." - Ben C
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Rated 5 out of 5

Get award-winning accounting services

We handle individual and business taxes while helping you keep more of what you earn through long-term financial planning that supports your growth. Our team provides complete support to maximize your benefits. Let us help your business succeed financially. Contact us today.
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Award For Best CPAs in Seattle.
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Seattle and WA DOR Run Separate B&O Filing Tracks

Most operators here assume one B&O registration covers everything. It does not. State B&O files with WA DOR under its own classifications. City B&O uses distinct categories and files with Seattle on a separate schedule. We map revenue by filing category before either return goes out. Payroll above $9 million adds the Seattle Payroll Expense Tax on top. Our CPA Seattle team covers the full stack: WA DOR state B&O returns Seattle city gross receipts filings Payroll sourcing and Payroll Expense Tax

Washington Capital Gains Tax Catches RSU and Crypto Holders

Washington’s capital gains excise tax is a state-level levy on long-term gains above an annual deduction, administered by WA DOR. For any CPA Seattle client with stock or crypto exposure, that calculation runs separately. Washington taxes long-term gains at 7% above the $278,000 annual deduction. Gains above $1 million reach 9.9%. The exposure catches more filers than expected: Tech employees with active vesting schedules Founders realizing gains at a liquidity event Investors who assumed no income tax meant no state exposure Washington also ignores federal Qualified Opportunity Fund deferrals and disallows short-term losses from offsetting long-term gains. That distinction surfaces in tax preparation in Seattle on nearly every investor return we see.
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WA DOR and Seattle File Separately, Penalties Run Separately

Washington capital gains excise tax is a state-level levy on long-term gains above an annual deduction, administered by WA DOR independently of any federal return. The city B&O penalty and the WA DOR penalty accrue on different tracks. Within our accounting services in Seattle, we treat both filings as separate obligations from day one. Missing one layer here costs more than the layer itself.
Dimov Tax is experienced in AccountEdge accounting software
Dimov Tax is experienced in Freshbooks accounting software
Dimov Tax is experienced in OneUp accounting software
Dimov Tax is experienced in Oracle Netsuite accounting software
Dimov Tax is experienced in Quickbooks accounting software
Dimov Tax is experienced in Sage accounting software
Dimov Tax is experienced in Xero accounting software
Dimov Tax is experienced in Zoho accounting software
Dimov Tax is experienced in Wave bookkeeping and accounting software
Dimov Tax is experienced in Trinet payroll software
Dimov Tax is experienced in Run ADP payroll software
Dimov Tax is experienced in Rippling HR and payroll software
Dimov Tax is experienced in Intuit Quickbooks payroll software
Dimov Tax is experienced in Paycor payroll software
Dimov Tax is experienced in Paychex payroll software
Dimov Tax is experienced in Patriot Software for accounting and payroll
Dimov Tax is experienced in Onpay payroll software
Dimov Tax is experienced in Justworks payroll software
Dimov Tax is experienced in Gusto payroll software
Dimov Tax is experienced in deel payroll software
Dimov Tax is experienced in BambooHR payroll software
Dimov Tax is experienced in Bambee payroll software

Seattle Tax and Accounting That Builds Wealth

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Tax Preparation

Get your taxes done right, fast

We handle your business and personal tax returns together, saving you weeks of paperwork every year. Our tax CPA team knows how to maximize stock option deductions and manages multi-state filings without the headaches. You get accurate returns filed on time while you run your business.

Forensic Accounting

Evidence-based financial investigations

Financial fraud investigations take months when handled incorrectly, costing you valuable time and money. Our forensic accountants trace hidden assets and calculate damages with court-ready documentation that holds up under scrutiny. We deliver the evidence you need to resolve disputes quickly and recover what belongs to you.
bookkeeping services for small businesses

Bookkeeping

Clean books, clear business picture

Most business owners waste hours on bookkeeping mistakes that cost them money at tax time. We teach you how proper records work while handling everything ourselves. Our small business CPAs use QuickBooks and other top systems to keep your finances organized and tax-ready year-round.
tax consulting services

Tax Consulting

Smart tax choices, better results

International tax laws confuse most people because they change frequently and overlap between countries. We teach you how these rules work while handling your compliance requirements. Our Seattle tax consultants manage expat taxes, foreign income reporting, and multi-state filings so you stay compliant everywhere.
full payroll and HR management services.

Payroll Services

Payroll compliance, handled correctly

Our small business accountants fix payroll problems before they cost you money. We manage payroll setup, taxes, and benefits through QuickBooks, Gusto, Rippling, and more. We handle multi-state issues so you can stay focused on growing your business without the stress.
Amend tax returns.

Amended Tax Returns

Fix past tax return mistakes

Most people file their taxes thinking everything is correct, then get surprised by late forms or missed deductions that could save them money. We handle Form 1040X amendments when you find errors, receive corrected documents, or remember income you forgot to report originally.
financial auditing services.

Financial Audits

Thorough reviews for accuracy

We conduct third-party audits that give you confidence in your financial records while keeping costs reasonable. Our certified tax accountants understand business compliance requirements and explain everything clearly throughout the process. You get thorough auditing services from Washington’s most trusted team at prices that beat most competitors.
IRS tax audit representation.

Tax Audit Representation

Expert defense in IRS audits

IRS audits happen whether you want them or not. Our certified tax accountants win most cases on the first response with correspondence, field, state, sales, and payroll audits. We know the rules, handle the paperwork, and deal with agents while you focus on business. Other firms struggle where we succeed.
IRS tax audit representation.

Real Estate Taxes

Property tax planning made simple

Your investments need planning, your rentals need strategy, and your portfolio needs protection. Poor decisions cost money, weak planning costs opportunity, and bad timing costs everything. Every property owner requires comprehensive tax guidance for long-term wealth building. We handle your 1031 exchanges in Seattle, structure your business, and guarantee your financial success.
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Resources From Our Expert Accountants

Visit our resource center to learn how we legally maximize your tax benefits through deductions and credits. Our articles share insights on local and international tax laws that help you keep more money. Knowledge protects your business. Explore our resources today.

Get Your Tax & Accounting Questions Answered

Questions about our fees come up all the time. How much does bookkeeping cost? What about cryptocurrency tax help or regular filing? Our tax accountants have put together answers that make everything easy to understand.

Average accountant hourly rates by years of experience (2025)

Hourly Rate ($)
$400 $300 $200 $100 $0
1-2 years
2-4 years
4-6 years
6-8 years
8-10 years
10+ years

Your Personal and Business Accounting Team

George Dimov - Founding President of George Dimov CPA and Tax Specialists, an online CPA firm with the highest standards

George Dimov

President

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Stan Shraybman, MBA, EA

Senior Tax Manager

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Anvar Akhtamov, EA

Senior Tax Accountant

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Xintian Wang, CPA

Senior Tax Manager

MEET THE TEAM

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Serving Seattle, CA and Surrounding Areas

Dimov Tax Specialists proudly serves clients throughout Seattle and the surrounding areas. Whether you need help with tax preparation, accounting, or financial planning, our experienced team delivers trusted, remote support tailored to your needs.

Phone Number: +1 (844) 630-2255

Hours:

• Monday: 7 AM – 8 PM
• Tuesday: 7 AM – 8 PM
• Wednesday: 7 AM – 8 PM
• Thursday: 7 AM – 8 PM
• Friday: 7 AM – 8 PM
• Saturday: 7 AM – 6 PM
• Sunday: 8 AM – 6 PM

Transit Data

Museum of History & Industry (MOHAI)

Mount Baker

South Seattle College

Optimize your taxes and save thousands

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