RSU Strategy for Early Retirement

Restricted stock units (RSUs) are the dominant equity compensation for tech and finance employees — and for many FIRE planners, annual RSU vesting represents the single largest lever on the path to financial independence. A $150,000-a-year RSU package that vests over four years adds $600,000 in gross equity wealth. After taxes, it might add $350,000–$420,000 to your investable net worth — depending almost entirely on decisions you make about timing, sequencing, and concentration risk.

The problem is that most of the advice circulating about RSUs is written for people planning to stay employed for 30 more years, not for someone targeting retirement at 45 or 50. The tax questions are different, the concentration risk stakes are higher, and the ACA coordination implications are real. This guide covers what FIRE-focused RSU planning actually looks like.

How RSUs are taxed — the mechanics

When RSUs vest, the fair market value of the shares on the vest date is ordinary income — taxed at your marginal federal rate, plus your state rate, plus FICA. This income appears on your W-2, not as a 1099.

FICA at vest (2026):

• Social Security: 6.2% on RSU income up to the wage base ($184,500 combined with all other W-2 wages in 2026¹). If your base salary already exceeds $184,500, RSU vests don't trigger additional SS tax.
• Medicare: 1.45% on all RSU income, always. An additional 0.9% Medicare surtax applies once your W-2 income exceeds $200,000 (single) or $250,000 (married).²

What happens after vest: Your cost basis in the shares is the vest-date FMV — the same amount you paid ordinary income tax on. If you sell immediately, you owe no additional tax (or just a tiny short-term gain/loss on any intraday price movement). If you hold and sell later:

• Held <1 year after vest date: gain above vest-date FMV is short-term capital gain (ordinary rates)
• Held ≥1 year after vest date: gain above vest-date FMV is long-term capital gain — 15% for most high earners, 0% if your income in retirement falls below $49,450 (single) / $98,900 (MFJ)³

RSU FIRE contribution calculator

How much do your RSUs actually contribute to your FIRE timeline, after taxes?

Sell immediately vs. hold: what the math actually says

The most common RSU mistake is holding employer stock after vest because you "believe in the company." Here's why the math usually points toward selling immediately.

When RSUs vest, you've already paid ordinary income tax on the full vest-date value. That's done — it doesn't change whether you sell or hold. The only decision left is: where should this after-tax money be invested?

• Sell immediately: You have after-tax proceeds (say, $72,000 after taxes on a $120,000 vest). Invest in a total market index fund. Your cost basis is the vest-date price.
• Hold for 1+ year: Same after-tax proceeds, but left in employer stock. If the stock appreciates, the gain above vest-date FMV is long-term capital gain when you eventually sell — taxed at 0–20% instead of your ordinary rate.

The LTCG tax saving from holding might be 9% of appreciation (24% ordinary minus 15% LTCG) on a stock that has to significantly outperform a diversified portfolio to justify the concentration risk. In a normal year, a 20% stock gain saves roughly $1,800 in taxes on a $100,000 vest. You're accepting 100% employer stock concentration for a $1,800 expected tax benefit. For most early retirees, that's not a favorable risk/reward.

When holding may make sense:

• You have high conviction the stock will meaningfully outperform the market (and you have a plan to sell)
• You're in a tax year with already-high income and expect a much lower-income year soon (then LTCG at 0%)
• You have substantial carry-forward capital losses that can offset gains, eliminating the LTCG tax anyway
• Company is pre-IPO and shares aren't liquid — holding isn't a choice, it's a constraint

ACA MAGI coordination in vesting years

RSU gross vest income flows directly into your Modified Adjusted Gross Income (MAGI) — the number the ACA uses to calculate your subsidy eligibility. In your final working years, you're probably well above the 2026 ACA subsidy cliff ($63,840 single / $86,640 MFJ for 400% FPL⁴), so this doesn't matter for your current insurance.

But it matters for transition planning in two ways:

1. Vesting schedule vs. retirement date: If your last RSU cliff vest is in Q1 of the year you retire, that vest income spikes your MAGI for the full calendar year — potentially above the ACA cliff. You'll pay full unsubsidized premiums for the entire year, even if you stopped working in February. Timing your retirement date to the month after your final large vest, or to a year when no large vests remain, can save $15,000+ in premiums.
2. Roth conversion coordination: In early retirement, your goal is often to fill the 12% bracket with Roth conversions before Social Security and RMDs push income higher. Large RSU vests in your final working year already fill that bracket. Plan conversions for years when RSU income has stopped.

Concentrated stock risk for FIRE planners

If you've worked at the same company for several years and held RSU shares at each vest, you may have accumulated a large position in a single stock. For a FIRE plan with a 40-year horizon, concentrated stock risk is an existential threat — not just a portfolio optimization question.

Tech stock history is full of companies that looked unassailable and then lost 50–80% of their value over 2–3 years. If a single stock represents more than 10–20% of your investable net worth when you retire, a catastrophic drawdown in that stock becomes a FIRE-ending event. The sequence-of-returns risk amplifier makes this especially dangerous in the first decade of retirement.

A practical concentration check: How many years of retirement spending does your employer stock position represent at its current value? If the stock fell 75% — which has happened to major tech companies — would you still have 25+ years of spending covered by your diversified portfolio? If the answer is no, that's the signal to accelerate your diversification plan before you retire.

If your stock has significant embedded gains (you held shares from early-exercise options at a very low basis), a fee-only advisor can model a tax-efficient liquidation strategy across multiple years to spread the capital gains burden and potentially capture some 0% LTCG room in early retirement.

The FIRE transition: unvested shares

Most four-year vesting schedules vest 25% per year after a one-year cliff. If you're three years into a grant and targeting retirement in six months, you're walking away from 25% of that grant.

Strategies to consider before leaving:

• Delay retirement to a vest date: Waiting 3–6 months to retire at the end of a vesting period is often worth $50,000–$150,000. This is simple math — but emotionally, people often don't do it because they're ready to leave.
• Negotiate acceleration: In some cases — especially at smaller companies or if you're leaving voluntarily for a retirement-class departure — employers will accelerate some portion of unvested shares. Rarely offered, occasionally available if you ask.
• Extended exercise windows: For options (not RSUs), leaving before vesting expires your option exercise window. Some employers offer 10-year post-termination exercise windows, which can dramatically change the tax planning timeline.
• New-hire grant timing: If you switched employers recently and have a cliff coming up in your second year, the calculation changes depending on what's at stake.

Stock options: ISOs vs. NSOs at a glance

If you have stock options rather than (or in addition to) RSUs, the tax treatment differs significantly from RSU rules.

ISO exercise timing for FIRE planners is particularly complex: exercising early in a year, then selling in the same year to avoid AMT, may be better than holding for the LTCG qualifying period if you're in a low-income retirement year anyway. A FIRE-specialist advisor can model the actual tax across scenarios.

Roth IRA contributions while receiving RSU income

W-2 income from RSU vesting counts as earned income for Roth IRA contribution purposes. If your total W-2 income pushes you above the 2026 Roth direct contribution phase-out ($153,000–$168,000 single, $242,000–$252,000 MFJ⁶), you'll need the backdoor Roth strategy — but your RSU income years are still Roth-eligible years via that route. This is worth maximizing: every Roth-seasoned dollar you build during high-income years is future 0%-tax spending in early retirement.