Sell-to-cover
Sell-to-cover funds the 22%. It does not pay your real rate.
Reviewed August 21, 2026. About. Not tax advice.
Sell-to-cover means the plan sells just enough shares at vest to remit withholding, and deposits the leftover shares. The withholding on that sale is the statutory supplemental stack — typically 22% federal income tax, Medicare, Social Security up to the wage base, and state supplemental. It is not a sale you chose for diversification, and it is not a full tax payment at your marginal rate. If you are in 32–37%, sell-to-cover leaves a balance. “I already sold for taxes” is the sentence that precedes a September estimated payment.
What to copy
Do not copy a sell order from this site. Copy the 1040-ES amount or the W-4 Step 4(c) extra for the leftover after sell-to-cover already hit.
FAQ
- Can I elect a higher withhold percent at vest?
- Some brokers (Fidelity, E*TRADE, Carta) let you raise supplemental withhold. Many employers freeze it at the legal minimum. If you cannot raise it, use W-4 extra or 1040-ES.
- Is sell-to-cover a capital-gains event?
- The shares sold at vest usually have basis equal to the vest FMV, so gain on that slice is ~$0 aside from fees and tiny price moves. The tax problem is the ordinary income on the whole vest, not the cover sale.
Sources
- IRS Publication 15 (Circular E) — Supplemental wage withholding: 22% up to $1 million, 37% above.
- IRS tax year 2026 inflation adjustments (Rev. Proc. 2025-32) — 2026 federal brackets and standard deduction.
- IRS estimated taxes — 1040-ES installment dates and underpayment penalty.