San Francisco IRS Tax Attorney: Bay Area Tax Burdens, IRS Audits, and How to Protect Yourself

San Francisco and the broader Bay Area have a unique tax problem: the highest concentration of tech equity wealth in the world, combined with California’s 13.3% state income tax rate and the IRS’s increasingly focused scrutiny of tech compensation structures. A single RSU vesting event, startup exit, or stock option exercise in the Bay Area can generate a larger tax liability than many Americans earn in years — and a larger IRS audit exposure than most taxpayers ever face.

Segal, Cohen & Landis, P.C. (SCL) represents San Francisco and Bay Area clients before the IRS — handling IRS audits, tax debt resolution, equity income disputes, international tax compliance, and California FTB issues. This guide covers the key IRS exposure areas for Bay Area taxpayers.

Why the Bay Area Creates Elevated IRS Audit Risk

The Bay Area’s tech-driven economy creates several specific high-audit-risk scenarios that are disproportionately concentrated in San Francisco, San Jose, Oakland, and their surrounding communities:

• Equity compensation complexity: RSUs, ISOs, NSOs, and ESPP shares all have different federal and California tax treatments. Mischaracterizing the tax basis, AMT exposure from ISO exercises, or the timing of income recognition are among the most common audit issues for Bay Area tech workers.
• Startup founder equity events: An IPO, SPAC merger, or acquisition can generate tens of millions of dollars in ordinary income or capital gains in a single tax year — creating a massive one-time IRS and FTB liability. Errors in reporting these events are frequently caught within 2 years.
• Cryptocurrency: The Bay Area has one of the highest concentrations of crypto holders in the US. The IRS treats crypto as property — every trade, swap, DeFi transaction, and NFT sale is a taxable event. Many Bay Area crypto users underreport gains or miscalculate cost basis.
• Remote work and California residency disputes: Post-COVID, many Bay Area tech workers moved to Nevada, Texas, or other no-income-tax states while maintaining California-source income. The FTB actively audits these “part-year resident” situations — and will argue California residency aggressively based on continued ties to the state.
• International workforce: The Bay Area’s tech industry attracts talent from India, China, Canada, Israel, and Europe. H-1B and L-1 visa holders with foreign bank accounts, foreign pension plans, and foreign employer stock have FBAR and FATCA reporting obligations they may not know about.

The IRS Office Serving Bay Area Taxpayers

Tech Equity and IRS Audits: What Bay Area Workers Need to Know

RSU (Restricted Stock Unit) Audits

RSUs are the most common form of equity compensation at Bay Area tech companies. When RSUs vest, their full fair market value on the vesting date is ordinary income — reported on your W-2 by your employer. The IRS cross-references your W-2 and 1099-B data. Errors arise when employees:

• Sell vested shares and incorrectly use $0 as their cost basis (the broker’s reported cost) rather than the FMV at vesting (the correct adjusted basis)
• Fail to account for shares withheld by the employer to cover withholding taxes when calculating net proceeds
• Incorrectly classify RSU income as long-term capital gain rather than ordinary income

Incentive Stock Options (ISOs) and AMT

ISOs receive favorable federal tax treatment — no ordinary income on exercise, capital gains treatment on sale — but trigger the Alternative Minimum Tax (AMT) on the spread between exercise price and FMV at exercise. Many Bay Area startup employees exercised ISOs at low valuations, the stock subsequently declined, and they still owed AMT on the full spread from exercise. This remains one of the most common sources of Bay Area IRS tax debt.

California FTB + IRS: A Double-Sided Problem

California’s 13.3% top marginal rate applies to nearly all income types — including capital gains (no preferential rate), RSU vesting income, and startup equity. The FTB operates an independent audit program and does not accept an IRS audit settlement as final resolution of your California liability.

If the IRS adjusts your income upward in an audit, you are required to notify the FTB within 6 months — and the FTB will typically open its own examination to confirm the correct California tax liability. Failing to notify the FTB is itself a separate violation.

International Tax for Bay Area Tech Workers

A large percentage of Bay Area tech workers are foreign nationals — particularly from India, China, and Canada — many of whom maintain foreign bank accounts, foreign retirement accounts (like India’s EPF or PPF, or Canada’s RRSP), or foreign employer stock plans from previous employment abroad.

These accounts carry FBAR reporting requirements (if combined value exceeds $10,000) and may require Form 8938 (FATCA) reporting if total foreign asset values exceed the applicable threshold. India’s EPF is a particularly common FBAR issue — many Indian-American tech workers don’t realize their EPF balance counts as a foreign financial account.

See our San Francisco IRS tax attorney page for more on how we serve Bay Area clients.

Frequently Asked Questions — San Francisco IRS Tax Attorney

I exercised ISOs and now owe AMT — can that be resolved?

Yes. AMT paid on ISO exercises generates an AMT credit that can be applied to reduce regular tax in future years when you don’t owe AMT. If the stock declined after exercise and you sold at a loss, there may also be grounds to reclaim previously paid AMT through amended returns. The interaction between ISO, AMT, and capital loss carryforwards is complex — get an attorney to review your situation before filing or amending.

I moved from California to Nevada after leaving my tech job — do I still owe California taxes?

Possibly. California taxes all income earned while you were a California resident. If you had unvested RSUs at the time of your move, California will assert a pro-rata portion of the income is California-source (the number of days the vesting period was served in California vs. total vesting period). The FTB pursues these residency/source-income cases aggressively. A definitive answer requires analyzing the specific equity grants and vesting schedules.

My company was acquired and I received millions in stock proceeds — do I need special tax help?

Yes. A major liquidity event — acquisition, IPO, SPAC — creates a one-time tax profile that requires careful analysis. Ordinary income vs. capital gains treatment, AMT, Section 83(b) elections from prior years, California partial-year treatment, and estimated tax payment obligations all interact in ways that create significant post-event IRS risk. We recommend retaining counsel before filing the return in which the liquidity event occurs, not after.

Related guidance: IRS Audit Representation.