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Accountants in Sonoma, CA — 6 Top-Rated Firms (2026)

We list 6 accounting firms in Sonoma, California that have a website and a public review record — 3 financial planners, 2 CPA firms, and 1 bookkeeper. 4 hold a Google rating of 4.5★ or higher, and the average across the 6 rated firms here is 4.38★. They are sorted by Google rating and review count.

The highest-rated firm in Sonoma is SONOMA TAX SERVICE (5.0★, 5 reviews). 4 of 6 rated firms hold a 4.5★ or higher Google rating.

Showing 6 of 6 firms · sorted by Google rating
1.
SONOMA TAX SERVICE
★★★★★★★★★★5.0(5 Google reviews)✓ Verified on Google
Bookkeeping · 18360 Sonoma Hwy, Sonoma, CA 95476
Services: payroll, tax preparation
2.
Spencer W. Jeff CPA
★★★★★★★★★★5.0(1 Google review)IRS PTIN
Accountant · 18971 Sonoma Hwy, Sonoma, CA 95476
Services: accounting
3.
Sonoma Wealth Advisors
★★★★★★★★★★4.9(33 Google reviews)✓ Verified on Google
Financial Planning · 539 Broadway Suite A, Sonoma, CA 95476
Services: advisory
4.
Stout Sandra CPA
★★★★★★★★★★4.5(2 Google reviews)✓ Verified on GoogleIRS PTIN
CPA Firm · 19310 Riverside Dr, Sonoma, CA 95476
Services: tax preparation
5.
Bank of America (Lobby Service Only)
★★★★★★★★★★3.5(17 Google reviews)✓ Verified on Google
Financial Planning · 35 W Napa St, Sonoma, CA 95476
Services: advisory
6.
BMO Bank N.A Branches
★★★★★★★★★★3.4(11 Google reviews)✓ Verified on Google
Financial Planning · 201 W Napa St, Sonoma, CA 95476
Services: advisory

Top accounting firms in Sonoma

#FirmServiceGoogle ratingReviews
1SONOMA TAX SERVICEBookkeeping5.0 / 55
2Spencer W. Jeff CPAAccountant5.0 / 51
3Sonoma Wealth AdvisorsFinancial Planning4.9 / 533
4Stout Sandra CPACPA Firm4.5 / 52
5Bank of America (Lobby Service Only)Financial Planning3.5 / 517

More Firms in Sonoma

Firms without a website or enough reviews for a profile page of their own.

How to choose an accountant in Sonoma

  • Verify credentials — a CPA holds a state Board of Accountancy license; a tax preparer should have a valid IRS PTIN and, ideally, an EA (Enrolled Agent) designation.
  • Match the specialty to your needs — small-business tax, S-corp/LLC filings, bookkeeping, or personal returns are different skill sets.
  • Confirm they e-file and use current software, and ask how they handle IRS notices or audits.
  • Get the fee structure in writing — hourly, flat per-return, or monthly retainer — before engaging.
  • Ask for an engagement letter defining scope, responsibilities, and deadlines.

How to verify a CPA license »

What accountants cost

Typical national ranges: individual tax return $150–$450, monthly bookkeeping $200–$700, business return $500–$2,500+.

Cost guidance is a national reference range, not a quote — actual fees depend on return complexity, entity type, and the firm. Always request a written estimate.

Frequently asked questions

How many accountants are in Sonoma?
We list 6 accounting firms in Sonoma, California that have a website and a public review record, 4 of which hold a 4.5★+ Google rating. 27 businesses in Sonoma appear in the underlying public data.
How much does an accountant cost in Sonoma?
Fees vary by complexity and firm. As a national reference, an individual tax return typically runs $150–$450, monthly bookkeeping $200–$700, and a business return $500–$2,500+. Ask each firm for a written fee estimate.
Do I need a CPA or a bookkeeper?
A bookkeeper records day-to-day transactions and reconciles accounts; a CPA is a state-licensed accountant who can also handle complex tax planning, audits, and represent you before the IRS. Many small businesses use a bookkeeper year-round and a CPA at tax time.
Are the ratings on this page real?
Yes — ratings and review counts are aggregate figures from Google, attributed to Google, with a link to the firm's Google reviews. accounting8 does not host or write reviews.