Bay Area & California tax, accounting & advisory

Creative tax strategy for Bay Area businesses and families, not last year's template.

We look past the obvious deductions to find the smarter structure, the better timing, the entity change nobody mentioned. Proactive, plain-English advice from licensed professionals who answer the phone.

30+
Years in practice
Clear
Transparent pricing
Bay Area
Concord home base
5.0 ★
39 Google reviews
The office building housing API Accounting, Tax & Advisory at 1001 Galaxy Way in Concord, California
Our approach

Same tax code. Creative & Modern execution.

Most firms prepare what happened. We plan what happens next. Before a return is filed, we've already asked the harder questions: should this income funnel through an S-corp? Is the most suitable retirement vehicle the one in place? Does a cost-segregation study or a different fiscal year make sense?

Every client gets a strategy built around their actual situation — reviewed by a licensed professional, explained in plain English, and revisited during the year instead of once in April.

  • Year-round planning, not April data entry
  • One team for books, payroll, tax, and advisory
  • Secure document exchange through TaxDome
  • Fully remote statewide, in person when it helps
Full-service firm

Everything a business or family needs, under one roof.

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Why clients stay

Long-term relationships produce dividends.

A licensed professional reviews your tax return

Every return is reviewed by a licensed professional — never handed to a seasonal preparer and pushed out the door.

Creative, modern strategies

Constantly sharpening our tools each year to bring value to our clients while keeping up with the ever-changing tax code.

Transparent pricing, quoted upfront

You approve clear, transparent pricing before work begins. No hidden costs and no surprise invoice in April.

We return your call

Real people, same-day answers, in plain English. Questions don't sit in a support queue for weeks on end.

30+ years, three decades of tax seasons

We've worked through economic collapses, Covid-19, and tax-law overhauls. Always ready for the next disruption.

One team, start to finish

Bookkeeping, payroll, tax, compliance, and advisory all under one roof.

Where we work

Concord home base. Clients across California.

From our office at 1001 Galaxy Way, Suite 205, Concord, CA 94520, we work with businesses and families throughout Contra Costa County, the greater Bay Area, and the rest of California — in person or fully remote through our secure portal.

Also licensed to serve clients nationwide.

The API Accounting, Tax & Advisory team at their Concord, California office
Client stories

What our clients say.

5.0from 39 Google reviews

“I have been a client of API for over a decade. I have always found the staff to be professional, courteous, quick to reply, and they get the job done in a timely manner.”
Robert C. · Google review
“This is the first year my wife and I filed with Kelby at API accounting and the experience has been amazing! Kelby is extremely knowledgeable, friendly, and patient.”
Asher P. · Google review
“For support with both my business and personal taxes, I've found the API team to be knowledgeable, kind, and responsive. I am grateful to be working with such a sharp, dedicated firm.”
Chris D. · Google review

Reviews from our Google Business Profile.

Let's find the strategy your last accountant missed.

Request a free consultation. We'll review your situation, point out what we'd do differently, and give you a clear, transparent quote — no pressure.