For most engineers, selling RSUs before retirement on a schedule is sensible, and Ritholtz Wealth Management puts employer-stock concentration ahead of a hoped-for tax saving.
Once employer shares exceed 20% of net worth, reduce that exposure before trying to fine-tune the sale for taxes.
A winning stock can feel safer than it is. Your job, bonus, and a third of your retirement account can all hinge on the same quarterly earnings report. The right sale date depends on your vest records, tax basis, trading restrictions, and retirement date. The need to stop a single stock from setting that date does not.
Ritholtz Wealth Management reviews the shares alongside your expected monthly withdrawals, taxable account, and IRA balance. A schedule is not a prediction about where the stock goes next. It is a way to stop a former employer from becoming your retirement paycheck.
By Marcus Thompson, CFA — Wealth Manager | Reviewed by Hiroshi Tanaka, CFPMarcus builds diversified portfolios for high-net-worth clients, with deep expertise in asset allocation and risk management.
Sell now, sell in tranches, or wait
Waiting can feel like protecting a winner. In practice, a full sale removes concentration at once, three annual sales spread timing risk, and waiting only makes sense when a near-term trading restriction gives you no workable choice. Holding because the shares rose last year is not a cash-flow plan.
The comparison matters most when retirement is close. A lump sale gives you immediate control of the proceeds and a known tax result. Three tranches leave some upside and some concentration in place. Waiting leaves all $420K exposed, which is hard to defend if a large drop would move your retirement date.
For Ritholtz Wealth Management, cutting the concentration comes before any tax fine-tuning. Before we suggest a sale date, we match the shares to your first years of retirement spending and check the records that prove each lot's basis.
The winner can still be the risk
Compare the retirement cash, not the stock chart
Shortcut: If one employer’s shares exceed 20% of your net worth and a large decline would postpone retirement, reduce the position before seeking a small tax improvement from waiting.
| Decision point | Sell now | Three tranches | Wait |
|---|---|---|---|
| Concentration now | $0 | $280K remains | $420K remains |
| Tax timing | One tax year | Three tax years | Deferred |
| First retirement cash | Available now | $48K in year one | Must sell later |
| Remaining upside | None | Partial | Full |
| Best fit | Retirement date at risk | Records and timing allow | Short trading restriction |
What amount of employer stock is too much?
Employer stock becomes too large when it passes 20% of net worth and a sharp decline would alter your retirement date or monthly withdrawals. In Nils’s $1.4M portfolio, $420K of one company’s shares is 30%, while that same company supplies his paycheck.
Selling creates a known gain or loss and gives up future upside; holding keeps the upside but puts job income and retirement capital on one company. A single worker near retirement usually has less time to repair a loss. A married household with other secure income may carry more risk, while a $60K position and a $600K position deserve different urgency even at the same percentage.
How would a three-year sale schedule fund retirement?
A three-year schedule can turn $420K of employer shares into retirement cash by selling $140K each year, reserving the next 12 months of withdrawals, and diversifying the remainder. For a retiree spending $4K a month, the first sale supplies $48K of planned cash and leaves $92K for a broader portfolio. It spreads the sale timing, but it does not make the stock safer while shares remain.
For illustration, Nils is 57, single, and an electrical engineer at a semiconductor maker who updates his spreadsheet every Sunday. His $1.4M in total assets includes $420K of employer stock. He identifies a $90K vested-share block with complete basis records. Selling it takes the stock position from $420K to $330K; $330K divided by $1.4M equals 23.6%, still above the 20% shortcut.
He then adds $50K of verified lots. His first-year sale becomes $140K, leaving $280K in employer shares. $280K divided by $1.4M equals 20%. At retirement, he sets aside $48K, or $4K a month for 12 months, and invests the remaining $92K across diversified holdings. The site’s calculator can check the same percentages and monthly reserve using your own numbers.
The question this schedule answers is how quickly the concentrated position declines while retirement cash becomes available. It assumes no price change, because a schedule should work without pretending to know next quarter’s stock price.
Turn the first sale into a paycheck
A $90K block can still be too concentrated
A staged sale is not a forecast strategy. If an employer-stock decline would change your retirement date, selling sooner may be the cleaner choice.
| Year | Running concentration cost | Running diversified benefit |
|---|---|---|
| Year 1 | $280K still in stock | $140K diversified |
| Year 2 | $140K still in stock | $280K diversified |
| Year 3 | $0 still in stock | $420K diversified |
- Cash reserve: hold the next 12 months of planned withdrawals in cash or short-term holdings.
- Scheduled shares: sell employer stock to refill that reserve when the planned sale date arrives.
- Taxable investments: use diversified taxable holdings before taking an IRA distribution solely for monthly spending.
What should HR and the custodian confirm?
HR and the custodian should confirm vest values, tax basis, trading windows, withholding, and the exact lots available before you place an RSU sale. Match each vest record to your W-2, then compare the brokerage Form 1099-B with the vest paperwork before preparing the IRS Form 8949. An answer that cannot identify lot basis, or says shares cannot trade until a window closes, stops the schedule until you have a usable answer.
Nils’s former colleague accepted a broker statement that listed zero basis for vested shares. He reported the full sale proceeds as gain, even though the vest value had already appeared as compensation on his W-2. That error taxed the same income twice. Catch it by reconciling the vest statement before filing, not after an IRS notice arrives.
Ask HR whether share withholding covered enough tax, especially if the stock price changed after vesting. Ask the custodian whether it accepts specific-lot instructions and whether those instructions must arrive before the trade. A vague answer about “average cost” is a warning sign for RSUs, since the basis usually differs by vest date.
The SEC's amended Rule 10b5-1 trading-plan requirements added cooling-off periods and certifications for some insiders. An old plan that assumes an immediate sale deserves a review against the employer's current policy and legal guidance. A sale schedule cannot override a blackout, an insider-trading restriction, or missing lot records. Any investment, including the diversified holdings you buy with the proceeds, can fall below what you paid for it.
Match the brokerage record to payroll
A zero-basis entry can create a second tax bill
- Vest date and value: match every vest record to the W-2 wage entry.
- Tax basis: compare Form 1099-B with vest paperwork before Form 8949.
- Trading window: ask HR about blackout dates and pre-clearance.
- Share withholding: ask whether payroll withholding covered the likely tax.
- Account registration: ask which lots can be sold and when instructions are due.
Your questions about selling RSUs before retirement, answered
Can I sell vested RSUs and buy the same shares again later?
You can generally buy publicly traded employer shares after selling vested RSUs, provided you follow employer trading policies and any insider restrictions. Buying back immediately defeats the diversification purpose, though. If the position was above 20% of net worth, decide first how much employer-stock exposure you are willing to carry after retirement.
What can I change if I already set a schedule for selling employer shares?
You can revise a personal sale schedule when retirement spending, tax records, or employer trading restrictions change. A Rule 10b5-1 plan may have its own amendment limits, cooling-off periods, and employer requirements. Review the written plan and current company policy before changing trade dates or share amounts.
How soon before retirement should I start reducing a concentrated RSU position?
Start reducing employer-stock concentration early enough that a blackout window or weak share price does not force a rushed sale near your retirement date. Three annual sales can be a useful pacing method. If employer shares exceed 20% of net worth and a decline would delay retirement, selling earlier deserves priority.
When is employer-stock concentration worth discussing with Ritholtz Wealth Management?
Ritholtz Wealth Management can discuss a concentrated position when it affects your retirement date, monthly withdrawal plan, or the tax result of a sale. Bring award paperwork, vest dates, W-2s, brokerage lot records, and the employer’s trading policy. Retirement income planning and tax-efficient investing belong in that review because the shares may fund the first years after paychecks stop.
The first conversation can also cover the $500K investable-assets minimum. Ritholtz Wealth Management talks through its fee there and confirms it in writing before work begins.
Your employer’s stock should not get the final vote on your retirement date.
Sources
This article provides general information only and is not individualized investment, tax or legal advice. Investing involves risk, including the possible loss of principal. Talk to a qualified professional about your specific situation before making any financial moves.