Equity compensation mechanics
Incentive stock options (ISOs) and non-qualified stock options (NSOs) have different tax treatment at grant, exercise, and sale. RSUs are taxed as ordinary income at vest. Understanding which type you have and when to exercise is often a six-figure decision.
Why RSU withholding comes up short
Employers withhold on RSU vests at a flat supplemental rate, which sits below the top brackets. For an executive whose vests push income well into the upper brackets, the gap becomes a five-figure April balance unless estimates or extra withholding cover it during the year. The fix is arithmetic, not strategy, but it has to happen before December, not at filing.
AMT planning
Exercising ISOs without a same-year sale can create substantial Alternative Minimum Tax liability. Planning the exercise across multiple years, or pairing with a same-year sale, can avoid the AMT drag.
Deferred compensation and 83(b) elections
Section 409A deferred compensation plans, 83(b) elections on restricted stock, and qualified small business stock (QSBS) under Section 1202 all have strict timing rules and large payoffs when handled correctly.
Concentration, charity, and the exit year
Executives holding appreciated employer stock have better options than selling and writing checks: gifting appreciated shares or funding a donor-advised fund deducts the fair market value and skips the capital gain entirely. Separation and retirement years, when income drops, are often the right window for exercising options or realizing gains that were held back during peak-earning years.
Multi-state residency
Executives who move mid-year, work remotely across state lines, or retire to a low-tax state face residency sourcing questions on equity comp that vested across states. We file part-year and non-resident returns in every affected state.
Common questions
- Should I exercise my ISOs now or wait?
- Depends on spread to current FMV, AMT exposure, your liquidity, and your confidence in the company. We model both paths specifically.
- How does a move from California to Florida affect my RSUs?
- California will source the portion of RSU income earned while you worked there, even if vested after the move. We apportion across states.
- Why do I owe in April when my employer withholds on my RSUs?
- Supplemental withholding rates sit below the top marginal brackets. The vest is withheld at the flat rate while your actual rate is higher, and the difference lands on the return. We close the gap during the year instead.
- What happens if I sell my ESPP shares early?
- A disqualifying disposition converts the purchase discount into ordinary income in the sale year. Holding through the qualifying period shifts more of the gain to capital treatment. We track the lots either way.
Related
Personal Income Tax Preparation
Federal and state 1040 preparation with year-round planning. We handle W-2, 1099, K-1, rental, and crypto income for individuals in Florida and all 50 states.
Tax Planning
Year-round tax planning for individuals and business owners. We project the year's income quarterly and model decisions before they become tax liabilities.
We also work with
Tax Services for Outside Sales Professionals
Commission income, client entertainment, travel, mileage, home office deductions, and quarterly estimated payments for outside sales professionals on 1099.
Tax Services for IT & Tech Professionals
Remote work multi-state tax filing, 1099 consulting income, equipment deductions, and equity comp like RSUs, ISOs, and ESPP for IT and tech professionals.
Tax Services for Retirees
Social Security taxation, required minimum distributions, Roth conversion windows, income timing, and snowbird multi-state residency planning for retirees.
Tax Services for Snowbirds
Florida residency, the 183-day rule, Declaration of Domicile, part-year state returns, and homestead exemption for seasonal Florida residents and snowbirds.