How can Moontree Tax Service help my San Jose business minimize its tax liability?

We perform proactive tax strategy identifying missed deductions, optimizing owner compensation ratios, and deploying legal entity structures to lower federal and California state liabilities.

I receive RSUs, ISOs, or NSOs in Silicon Valley. How do you help manage the tax implications?

We reconcile brokerage Form 1099-B data to correct adjusted cost basis figures and model exercise scenarios to mitigate Alternative Minimum Tax (AMT) exposure.

Do you handle California Pass-Through Entity (PTE / AB 150) Tax elections?

Yes. We manage elective PTE tax payments for qualifying S-Corps and Partnerships to bypass the federal $10,000 SALT cap.

Silicon Valley Headquarters for Executive Equity Tax Strategy

San Jose Tech Equity CPA & Stock Sales Accountant

Avoid double taxation, phantom AMT traps, and maximize your net exit value. We provide highly specialized CPA tax advisory for Silicon Valley founders and executives navigating RSUs, ISOs, ESPPs, NSOs, and Section 1202 QSBS stock sales.

Schedule Your Tech Equity Strategy Session →

Mastering Tech Equity Taxation in Silicon Valley

For tech professionals at companies like Apple, Google, Meta, and Nvidia, equity compensation is often the largest driver of net worth. However, the IRS tax code treats different equity vehicles—RSUs, ISOs, NSOs, and ESPPs—with drastically different rules. Using standard “do-it-yourself” tax software or a generalist accountant almost guarantees catastrophic financial mistakes, from paying taxes twice on the same income to triggering massive, unexpected Alternative Minimum Tax (AMT) bills.

At Moontree Tax, headquartered in San Jose, tech equity is our core DNA. We routinely rescue clients from 1099-B zero-basis reporting errors via precise Form 8949 adjustments. For startup leaders, we actively model ISO AMT crossover points, execute critical 83(b) early-exercise elections, and structure exits to qualify for up to $10 million in tax-free gains under Section 1202 Qualified Small Business Stock (QSBS) rules.

Our Holistic Tax Philosophy

While this page focuses on our specialized tech equity services, Moontree Tax is an integrated advisory firm. We specialize in the intersection of high W-2 equity income, independent S-Corporation consulting revenue, and active real estate portfolios. We routinely help our Silicon Valley tech clients transition wealth into real estate using cost segregation and REPS, or shield business income using California PTE elections—providing a single, cohesive master tax plan.

The RSU Double-Taxation Trap (Form 8949 Correction)

The Event: A Silicon Valley tech director vests $300,000 worth of Restricted Stock Units (RSUs). The company immediately withholds shares to cover ordinary W-2 income taxes. Months later, the director sells the remaining shares for $310,000 to buy a home.
The Tax Threat: The brokerage issues a Form 1099-B reporting the $310,000 sale, but leaves the “Cost Basis” completely blank ($0) because the shares were not “purchased” on the open market. Standard tax software imports this and attempts to tax the client on a massive $310,000 capital gain—even though they already paid ordinary income tax when the shares vested.
Moontree CPA Execution: We intercept the 1099-B and manually file IRS Form 8949 (Code B). We adjust the cost basis to the exact Fair Market Value on the day of the vest ($300,000).
The Result: The client’s taxable capital gain is reduced from $310,000 to just $10,000 (the actual market growth post-vesting), saving them over $100,000 in duplicate federal and state capital gains taxes.

Comprehensive Tech Equity Tax Pillars

Select your specific equity vehicle below to explore our targeted CPA strategies.

RSU Cost Basis Correction →

Never pay tax twice on Restricted Stock Units. We audit your supplemental brokerage statements and execute Form 8949 adjustments to override $0 cost basis errors and lock in your true W-2 basis.

ISO AMT Crossover Modeling →

Exercising Incentive Stock Options (ISOs) triggers phantom tax. We build AMT crossover projections so you can exercise options up to the exact limit of your AMT exemption.

ESPP Disposition Planning →

Maximize your 15% discount. We track your offering and purchase dates to navigate the complex rules distinguishing qualifying vs. disqualifying ESPP dispositions.

Integrated Wealth & 1040 Prep →

We don’t just look at your W-2. We operate as your holistic tax strategist, flawlessly integrating your tech equity, real estate portfolio, and business K-1s into a single master individual tax return (Form 1040).

Silicon Valley Tech Equity Advisory

Moontree Tax provides specialized equity compensation and ISO AMT modeling for tech executives across the Bay Area:

San Francisco Cupertino Mountain View Palo Alto Los Gatos Sunnyvale

Frequently Asked Questions About Equity Taxation

Why is my 1099-B showing a $0 cost basis for my RSUs?

Brokerages (like E*TRADE or Morgan Stanley) are not required to report the W-2 value of your vested RSUs to the IRS on Form 1099-B because the shares were granted, not purchased. If you plug this unadjusted 1099-B into standard tax software, you will pay taxes on the full sale amount twice. We must manually adjust this via Form 8949 using your supplemental statements.

How is the Alternative Minimum Tax (AMT) calculated for ISOs?

When you exercise an ISO and hold the stock, the “bargain element” (the Fair Market Value minus your strike price) is added to your Alternative Minimum Taxable Income (AMTI) on Form 6251. If your calculated tentative minimum tax exceeds your regular tax liability, you must pay the difference out of pocket—even if you haven’t sold any shares to generate cash.

When should an early startup employee file an 83(b) election?

An 83(b) election must be filed directly with the IRS strictly within 30 days of receiving your early-stage equity grant. By filing this election when the startup’s valuation is practically zero, you lock in a $0 bargain element, meaning you can vest shares for years without triggering any AMT exposure as the company grows.

Maximize Your Tech Equity Exit Today

Schedule a 1-on-1 strategy session with Brandy Phuong, CPA to review your vesting schedule, adjust your cost basis, and model your multi-year stock dispositions.

Schedule Your Equity Strategy Session →