Equity compensation (RSU/ISO), crypto, international tax, and complex multi-state returns, handled 1-on-1 by a California CPA who responds the same day. Plus full bookkeeping, payroll, and IRS & FTB resolution.
Free. No obligation. We respond the same day.
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Clients Served
0%
IRS Resolution Rate
5.0 ★
Google Rating
0+
Years Experience
Specialized California Tax Expertise
We go deep on the situations Silicon Valley actually needs: equity compensation, crypto, international tax, and complex multi-state returns. Plus everything a California individual or business needs.
RSUs, ISOs/NQSOs, ESPPs, and QSBS for Silicon Valley employees and founders. We plan the AMT on ISO exercises and handle the California equity clawback after a move.
Learn moreBitcoin, NFTs, staking, mining, and DeFi reported on Form 8949. We reconcile exchange and wallet activity and clean up prior years.
Learn moreExpat returns, foreign income, FBAR (FinCEN 114), and FATCA (Form 8938). Full cross-border compliance for globally mobile Californians.
Learn moreK-1s, trusts, capital gains, and AMT, plus income across multiple states. California resident and nonresident filings (Form 540 / 540NR).
Learn moreCatch up on unfiled FBARs and foreign income through the IRS Streamlined Procedures, the reduced-penalty path back into compliance for non-willful filers.
Learn moreProactive, year-round planning to cut your combined federal and California (up to 13.3%) tax bill and prepare for liquidity events.
Learn moreIRS audits, California FTB notices, back taxes, and penalties. 99% resolution success rate, with representation before both agencies.
Learn moreS-Corps, C-Corps, Partnerships, and LLCs (Form 568), plus monthly bookkeeping in QuickBooks or Xero and payroll. Clean books year-round.
Learn moreNot sure which service you need?
Speak to a CPACalifornia-Specific Expertise
California taxes are among the most complex in the nation. Between the FTB, the highest income tax rates in the country, the $800 LLC franchise tax and Form 568, equity that California claws back after you move, crypto, and international and foreign-account reporting, you need a CPA who understands every layer. From our San Jose office, we serve California residents and businesses both in person and remotely.
California has the highest state income tax in the nation, up to 13.3%. Residents file Form 540 and nonresidents or part-year residents file Form 540NR. We source income correctly across states and minimize your combined federal and California bill.
Every California LLC owes the $800 annual franchise tax and files Form 568, plus a gross-receipts fee once revenue passes $250,000. We keep your LLC compliant and model whether an S-corp election saves you money.
Silicon Valley runs on equity. We handle RSU withholding gaps, AMT on ISO exercises, ESPP dispositions, and QSBS, and we allocate the equity California claws back even after you move out of state.
Received a letter from the California Franchise Tax Board? We handle FTB audits, residency reviews, penalty abatement, and back taxes with a 99% resolution success rate.
FBAR (FinCEN 114), FATCA (Form 8938), PFICs (Form 8621), controlled foreign corporations (Form 5471), and foreign trusts and gifts (Form 3520 / 3520-A). We also run Streamlined Offshore (SDOP) catch-up for non-willful filers.
California taxes crypto as property, just like the IRS. We report trading, staking, mining, DeFi, and NFTs, reconcile messy exchange data, and fix prior-year gaps.
Have a California filing, FTB, or equity-comp question? Contact our team or send us a message.
How It Works
Easy and straightforward. No complicated onboarding. No admin runaround.
Tell us about your situation. Book a quick call or fill out our form below. We respond within the same day.
Upload your files through our encrypted client portal. Your information stays protected at every step.
From tax prep to bookkeeping to IRS resolution, we take it from here and keep you informed every step of the way.
Tell us about your situation. Book a quick call or fill out our form below. We respond within the same day.
Upload your files through our encrypted client portal. Your information stays protected at every step.
From tax prep to bookkeeping to IRS resolution, we take it from here and keep you informed every step of the way.
We'll guide you through the entire process, no stress, no pressure.
Testimonials
Reviews from Google Business Profile
“Clark is very knowledgeable and has helped my family and I tremendously. He takes the time to explain everything. He's very responsive and reliable over email too. I've sent panicked questions at weird hours and always hear back quickly. Highly recommended if you're tired of feeling lost during tax season.”
Umar K.
Individual & family tax, San Jose
“Clark is very responsive and kind. We first got a notice from the IRS and went to him. He saved our lives!!”
Yoko K.
IRS notice resolution
“It's a horrible feeling knowing I was not in compliance with international informational forms after finding it out by chance... Then I found Clark, he is very responsive, thoroughly explained the whole process, putting me at ease during our very first conversation. He is personable, understanding, and importantly, specializes in international compliance.”
S.Z.
International disclosure & compliance
“Excellent CPA, fair pricing, guy knows his stuff, definitely recommend.”
Joe
Individual tax, San Jose
“I had a genuinely messy tax situation: foreign bank accounts, FBAR filing, passive foreign investment income, and a late filing I'd been avoiding for two years... Clark knew exactly what he was dealing with, explained the FATCA and FBAR requirements clearly, and just handled it. Flat fee, no surprises.”
Amanda G.
FBAR, FATCA & offshore accounts
“Second year working with Clark at TS CPA, he is fantastic! He handles our payroll and it's been smooth the whole time... Clark took it over, fixed the back payroll issues, got everything set up correctly, and now it just runs.”
Anna J.
Payroll & small business
“Thank you Clark for handling my FBAR issue... I can't thank you enough and you are now our CPA for life.”
Deedee S.
FBAR & amended returns
“Clark was excellent to work with. I came to him with a fairly nuanced U.S./international tax situation involving an amended return, state tax considerations, and cross-border planning questions... He explained the options clearly, gave sensible guidance, and moved quickly once I provided the documents.”
Alfred H.
International & multi-state tax
“Clark handled my complex return with great care and clearly knows the details that matter. He is prompt, patient and thorough, taking the time to walk me through my questions until everything was clear.”
David H.
Complex individual return
“Was very efficient and communication was excellent.”
Campbell W.
Efficient, responsive service
FAQ
Everything you need to know about working with us. Can't find what you're looking for? Reach out and we'll be happy to help.
Have a specific question? Call us at (909) 663-8890 or send us a message.
Free Consultation
Every tax situation is unique. Tell us about yours and get a custom quote, tailored to exactly what you need.
Every engagement starts with a personal conversation, not an automated funnel. Your tax situation gets a custom strategy built just for you.
500+
Individuals Served
200+
Businesses Served
5.0★
Google Rating