Seattle, WA · Startup CPAs
Find a Startup CPA in Seattle, WA
CPAs who handle the tax, entity, and compliance side of running a startup — Delaware incorporation, R&D credit filings, and multi-state nexus — distinct from the bookkeeping-and-investor-reporting work a startup accountant handles. Serving Seattle, WA and the surrounding region — Seattle CPAs serve tech, aerospace, and the Pacific Northwest's deep entrepreneurial bench.
Why Seattle clients hire startup cpa
Local context for startup cpas in Seattle, WA
Dominant local industries
- Tech & cloud / SaaS
- Aerospace & advanced manufacturing
- E-commerce & Amazon sellers
- Real estate & construction
- Maritime & fishing
Washington tax climate
Washington has no state personal or corporate income tax. Instead, the Business & Occupation (B&O) tax applies to gross receipts at rates that vary by activity. A 7% capital gains tax on long-term gains above $262K (2024) applies to high earners. Sales tax averages around 9.4% combined.
Key local deadline
Monthly / Quarterly / Annually
WA Business & Occupation (B&O) tax filings to the Department of Revenue (frequency depends on revenue).
When to hire
- You need to file your first business tax return as a startup
- You're deciding on entity structure (C-corp, LLC, Delaware vs. home state)
- You want to claim the R&D tax credit and need it filed correctly
- You've triggered nexus in a new state and need to register and file
- You're preparing tax-related materials for due diligence
What they do
- C-corp, LLC, and Delaware entity tax filings
- R&D tax credit calculation, documentation, and filing
- Multi-state nexus registration and compliance
- Delaware franchise tax filing and optimization
- Coordination with your bookkeeper or fractional CFO on tax-ready financials
Typical fees
What it costs
Low end
$1,200
per year for core tax compliance
High end
$6,000
per year for core tax compliance
Notes
Basic annual entity tax filing runs $1,200–$3,000/year for early-stage companies. Add R&D credit studies ($1,500–$5,000+ depending on complexity) and multi-state filings as needs grow. Ongoing monthly advisory is typically separate from core tax compliance.
Compare
Startup CPA vs Startup Accountant / Bookkeeper
| Factor | Startup CPA | Startup Accountant / Bookkeeper |
|---|---|---|
| Core focus | Tax filings, entity compliance, credits | Monthly books, investor reporting |
| Licensure | State-licensed CPA | Not required |
| IRS representation | Unlimited | None |
| R&D credit filing | Prepares and files | May identify, doesn't file |
| Typical engagement | Annual plus as-needed | Monthly ongoing |
Questions to ask
- How many venture-backed startups do you file returns for annually?
- Do you prepare R&D credit studies in-house or refer them out?
- How do you handle Delaware franchise tax calculation methods?
- Can you file in every state where we have nexus?
- Do you work directly with our bookkeeper or fractional CFO?
- What's your process and timeline around a fundraise or acquisition?
Red flags
- Unfamiliar with Delaware franchise tax or C-corp specifics
- No experience preparing R&D credit documentation
- Treats a startup like a standard small business with no nexus awareness
- Can't coordinate with your existing bookkeeper or CFO
- No clear annual filing calendar or deadline tracking
Documents to prepare
- Entity formation documents and EIN
- Prior-year tax return, if any
- Cap table and fundraising history
- List of states where you have employees or significant activity
- R&D-eligible activity documentation (engineering time, project notes)
By city
Startup CPAs in Seattle in major U.S. cities
Related
Other specialties you might need
Verified directory
Startup CPAs serving Seattle, WA
As startup cpa in Seattle claim profiles, they will appear here. Be among the first listed.
FAQ
Startup CPAs in Seattle — common questions
How much does startup cpas cost in Seattle?+
Seattle startup cpas typically charge $1,200–$6,000 per year for core tax compliance. Basic annual entity tax filing runs $1,200–$3,000/year for early-stage companies. Add R&D credit studies ($1,500–$5,000+ depending on complexity) and multi-state filings as needs grow. Ongoing monthly advisory is typically separate from core tax compliance.
Do I need a Washington-licensed CPA to work with a startup cpas in Seattle?+
For Washington state filings, your preparer should hold a CPA license from the Washington Board of Accountancy or be an Enrolled Agent. Out-of-state pros can prepare your federal return but should not sign as a CPA on Washington returns. Washington has no state personal or corporate income tax.
What's the difference between a startup CPA and a startup accountant?+
A CPA is licensed to file and sign tax returns and represent you before the IRS — core work like entity filings, R&D credits, and multi-state compliance. A startup accountant or bookkeeper typically handles monthly books and investor reporting; many startups use both.
Do early-stage startups really need a CPA if we're pre-revenue?+
Yes, at minimum for annual entity tax filings and Delaware franchise tax, which are due regardless of revenue. R&D credit eligibility often applies even pre-revenue, which a CPA should evaluate.
How does the R&D tax credit work for startups?+
It rewards qualifying product-development activity — much of what early engineering teams do. Pre-revenue startups can often apply the credit against payroll tax liability rather than income tax, which a CPA calculates and files.
What triggers the need for multi-state tax filings?+
Having employees, contractors, or significant sales activity in a state can create nexus, obligating you to register and file there — remote-first teams often trigger this without realizing it.
Should our CPA be different from our fractional CFO?+
Often yes — many startups use a CPA for tax/entity compliance and a separate fractional CFO for forecasting, fundraising support, and strategy, with the two coordinating directly.
Get matched
Get 3 quotes from startup cpa in Seattle
Free, no obligation. We'll route your request to up to 3 vetted startup cpas serving Seattle, WA.
Take the next step
Move forward with a local CPA
Free matching
Get 3 free CPA quotes
Tell us what you need. Up to 3 verified CPAs reply within 1 business day. No fees, no pressure.
Request 3 quotesSide-by-side
Compare CPAs
Stack verified pros next to each other on pricing, specialties, and experience before you reach out.
Compare CPAsFree PDF
2026 CPA Pricing Guide
Real fee benchmarks for tax prep, bookkeeping, payroll, and advisory — by service and business type.
Download free guideInternal links
More for startup cpa buyers in Seattle
Advisor-grade guides
Downloadable ebooks & templates
CPA-ready playbooks and templates you can use today — instant downloads, no signup required.

The Small Business Tax & Profit Playbook
A CPA-ready guide to deductions, quarterly taxes, S-Corp strategy, owner pay, cash flow, and year-round tax planning.

Business Tax Deduction Checklist
A CPA-curated checklist of 80+ business deductions most owners miss — organized by category so you can sweep it before filing.

The Definitive Bookkeeping Cleanup & Recovery Guide
The CPA's step-by-step playbook for diagnosing messy books, reconstructing missing history, and restoring a clean, audit-ready ledger.

The Freelancer Tax Guide
The practical tax playbook for freelancers, contractors, and solo creatives — deductions, quarterly estimates, and self-employment strategies.

The Year-End Tax Planning Guide
The CPA's December playbook — practical strategies to reduce your tax bill before the year closes.

The Premium Bookkeeping Template Pack
Automated dashboards, multi-account reconciliations, and CPA-ready reporting workbooks for serious owners and bookkeepers.

Tax & Bookkeeping Resource Library
Our complete advisor-grade collection — every premium asset an owner needs to run clean books, lower taxes, and recover messy ledgers, in one bundle.