Optimize Equity Vesting, Minimize AMT Exposure, and Protect Capital Gains
Navigating tech compensation in Silicon Valley requires far more than basic tax preparation software. Equity compensation—whether RSUs, Incentive Stock Options (ISOs), Non-Qualified Stock Options (NSOs), or ESPPs—comes with complex tax implications that can easily trigger unexpected Alternative Minimum Tax (AMT) liabilities or double taxation due to reported cost basis errors.
Based in San Jose, Moontree Tax Service provides specialized tax planning and Schedule D preparation for tech engineers, directors, and executives across Silicon Valley.
Equity Tax Challenges We Solve
1. RSU Cost Basis Corrections & Double-Taxation Defense
When RSUs vest, your employer includes their value as W-2 income. However, brokerage 1099-B forms often report a $0 cost basis or fail to include supplemental withholding details. Selling these shares without correcting the basis results in paying income tax twice on the same dollars. We reconcile your 1099-B forms with stock plan releases to ensure your cost basis is reported accurately.
2. ISO Exercise Modeling & AMT Planning
Exercising Incentive Stock Options (ISOs) without selling the underlying shares in the same calendar year can trigger severe Alternative Minimum Tax (AMT) exposure—even if the stock price drops later. We model ISO exercise scenarios beforehand to calculate your exact AMT breakeven threshold and track AMT credit carryforwards ($Form 8801$).
3. Startup Equity & 83(b) Elections
For founders and early employees at early-stage startups, filing a timely Section 83(b) Election within 30 days of grant can cap future appreciation at lower long-term capital gains rates rather than ordinary income rates. We advise on 83(b) mechanics and vesting acceleration schedules.
4. Capital Gains, Wash Sales & Multi-State Vesting
- Wash Sale Rule Adjustments: Tracking replacement share purchases across multiple trading accounts and ESPP purchase dates to accurately handle disallowed loss deductions.
- Tax-Loss Harvesting: Offsetting realized stock gains against underperforming assets to lower combined federal and California state liability.
- Multi-State Tax Allocations: Calculating proper state tax apportionment for tech employees who worked remotely or relocated between states during multi-year vesting periods.
Why Tech Equity Planning Matters in California
| Tax Factor | Impact on San Jose Tech Employees |
| Ordinary State Tax Rates | California does not offer a lower tax rate for long-term capital gains—all investment income is taxed at ordinary rates (up to 13.3%+). |
| Estimated Tax Penalties | Large RSU vests or stock sales often trigger underpayment penalties if quarterly estimated payments ($Form 1040-ES$ / $FTB 5805$) are not adjusted dynamically. |
| 1099-B Discrepancies | Automated tax software frequently misses adjusted basis details on Box B/E stock sales, leading to overpaid capital gains taxes. |
How Our Process Works
- Data Gathering: Upload your 1099-B forms, stock plan confirmation statements (E*TRADE, Schwab, Fidelity), Form 3921 (for ISOs), and year-end W-2s to our secure client portal.
- Basis Reconciliation: We review supplemental grant statements, correct misreported 1099-B basis figures, and calculate exact capital gains or losses.
- Tax Return Optimization: Your Schedule D and Form 8949 schedules are integrated seamlessly into your federal and California state returns.
- Review & E-Filing: We walk you through the return, explain your tax position in plain English, and e-file directly with the IRS and FTB.
Ready to optimize your tech stock tax strategy?
Serving San Jose, Santa Clara, Sunnyvale, Cupertino, Palo Alto, and greater Silicon Valley.