How should tech workers with RSUs plan for taxes on vesting income
By Fidelis Solutions · Published May 21, 2026
How should tech workers with RSUs plan for taxes on vesting income
RSU vesting creates ordinary income liability the moment shares transfer under IRC §83(a) — not when you sell. Tech workers should adjust W-4 withholding, make IRC §6654 estimated quarterly payments, and model multi-year vesting tranches before the first share vests. IRS Pub. 525 §2.01 confirms the vesting date is the taxable event. Planning begins at grant, not at tax time.
How this works
A tech worker receiving 40,000 RSUs vesting in four equal annual tranches at $150 per share recognizes $600,000 in W-2 income across four years. IRC §83(a) governs that recognition. Shares held in a brokerage account after vesting do not pause or defer the income recognition that already occurred on the vesting date.
The 2026 federal marginal rate reaches 37% for single filers with base salaries above $626,350, per IRS Rev. Proc. 2025-32 §3.02. California imposes an additional 13.3% state income tax rate on RSU vesting income under California Revenue and Taxation Code §17041, applied according to California sourcing rules regardless of where the employee physically works on the vesting date. The combined marginal rate on vesting income approaches 50%.
The IRC §83(b)(1) election is the primary structural tool for reducing that rate exposure. Filing the election within 30 days of grant accelerates income recognition into year one at grant-date fair market value. Appreciation between grant date and sale date then receives long-term capital gains treatment, with 2026 federal rates of 0%, 15%, or 20% depending on taxable income bracket per Notice 2025-67. An IRC §83(b)(1) election filed even one day late is permanently void and cannot be corrected.
Cashless-exercise and net-share settlement strategies reduce the immediate cash requirement at vesting but introduce complexity. IRC §1092(a) straddle rules and wash-sale lookback provisions apply when employees hold unvested tranches while selling vested shares. Integrated liquidity modeling is required in that scenario to avoid unintended tax consequences.
Interstate relocation timing adds a recoverable planning variable. Moving from California to a no-income-tax state before a scheduled vesting date eliminates the 13.3% California rate on that tranche under California Revenue and Taxation Code §17041 sourcing rules. The difference in timing is measured in weeks, not quarters. Fidelis Tax Strategy models relocation windows as part of equity compensation planning engagements. Fidelis Solutions treats a $200,000 tax liability as a forecast to engineer in January of the grant year, not a surprise to manage in April.
Sources
- IRC §83(a) — Ordinary income recognition upon property transfer in connection with services
- IRC §83(b)(1) — Election to accelerate income recognition at grant-date fair market value
- IRC §6654 — Underpayment of estimated tax by individuals
- IRC §1092(a) — Straddle rules applicable to offsetting positions
- IRS Publication 525 §2.01 — Taxable and Nontaxable Income: equity compensation vesting-date rule
- IRS Rev. Proc. 2025-32 §3.02 — 2026 federal income tax bracket thresholds
- Notice 2025-67 — 2026 long-term capital gains rate thresholds
- California Revenue and Taxation Code §17041 — California state income tax rates and sourcing rules for RSU vesting income
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