Equity · Tax and compliance

The 83(b) election, and the 30-day deadline that governs it

What the election changes about how restricted stock is taxed, who it tends to help, how it is filed, and what happens to the tax you paid if the shares are forfeited.

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In short

What is an 83(b) election?

An 83(b) election is a written choice to be taxed on restricted stock at the moment it is transferred rather than as it vests. The filer includes the transfer-date fair market value, less anything paid, in that year’s income. Section 83(b)(2) requires it no later than 30 days after the transfer.

IRC §83(b) · Treas. Reg. §1.83-2 · statutory 30-day deadline

The default rule the election overrides

Section 83 governs property transferred in connection with the performance of services. The default in section 83(a) is that the service provider recognises income in the first taxable year in which the property is either transferable or no longer subject to a substantial risk of forfeiture. The amount is the fair market value at that point, less whatever was paid for it.

Founder stock bought at incorporation for a nominal price and subject to a four-year vesting schedule is the classic case. The shares are issued on day one, but the company can repurchase the unvested portion if the founder leaves. That repurchase right is a substantial risk of forfeiture, so under section 83(a) each tranche is measured and taxed as the risk lapses — at whatever the stock is worth on that later date.

That is the problem the election addresses. A company that succeeds is worth far more in year three than at incorporation, so vesting-date measurement can produce large ordinary income on shares nobody has sold. It also starts the capital gains holding period late, tranche by tranche.

What the election actually changes

Section 83(b) lets the service provider elect to include, in the year of transfer, the excess of the property’s fair market value at the time of transfer — determined without regard to restrictions other than those that will never lapse — over the amount paid for it. If the election is made, section 83(a) does not apply to that transfer at all. Later vesting is a non-event for income tax purposes.

Restricted stock with and without a section 83(b) election, in outline
No election (section 83(a))Election made (section 83(b))
When income is measuredAt each vesting date, as the forfeiture risk lapsesOnce, at the transfer date
Amount includedValue at each vesting date, less amount paid for that trancheValue at transfer, less amount paid
Effect of the company growingIncreases the ordinary income recognised at later vesting datesNo further ordinary income from vesting
Capital gains holding periodGenerally starts tranche by tranche as shares vestGenerally starts at transfer
If the shares are forfeitedLittle or no income was recognised on the forfeited sharesSection 83(b) allows no deduction for the forfeiture
ReversibilityNot applicableRevocable only with the consent of the Commissioner

Outline only. Character, basis, withholding, and state treatment all turn on facts this table does not capture.

The election is most often described as "paying tax early to pay less later." That is only true when the spread at transfer is small. If founders buy stock at its fair market value on day one, the excess in section 83(b)(1) is zero or close to it, and the election converts a large future ordinary income event into no current income at all. If a person is granted vesting stock years later at a real valuation, the same election creates a real tax bill on paper value.

The 30-day deadline is statutory

The IRS applies the usual weekend and holiday rule: where the thirtieth day falls on a Saturday, Sunday, or legal holiday, a filing postmarked on the next business day is treated as timely. That is the only slack in the deadline, and it is measured in days, not weeks. Because the filing is a paper statement rather than a return, filers commonly send it by a method that produces dated proof of mailing and keep that proof indefinitely.

How the election is filed

The mechanics the regulation describes

  1. Fix the transfer date

    Identify the date the stock was actually transferred. Everything else keys off it, and it is the single most common thing people get wrong.

  2. Prepare a statement that meets §1.83-2(e)

    The regulation requires the filer’s name, address and taxpayer identification number; a description of each property; the date of transfer and the taxable year concerned; the nature of the restrictions; the fair market value at transfer determined without regard to lapse restrictions; and the amount paid for the property.

    The IRS also publishes Form 15620, Section 83(b) Election. The IRS describes the form as provided for convenience and its use as voluntary — a written statement meeting the regulation is still valid.

  3. File it with the right IRS office

    Treas. Reg. §1.83-2(c) directs the statement to the internal revenue office with which the person who performed the services files their return.

    Within 30 days
  4. Give a copy to the company

    The regulation requires the service provider to submit a copy of the statement to the person for whom the services are performed. In practice this is how the company knows to reflect the election in its own records and reporting.

  5. Keep proof, and keep it findable

    The filer, not the company, carries the burden of showing a timely election years later during diligence or on audit. Store the dated mailing proof with the stock purchase agreement rather than in an email thread.

The precise mechanics have changed over the years — where the copy goes, whether anything is attached to the annual return, and whether an IRS form exists at all have all moved. Check the current IRS instructions for the form and the current text of the regulation rather than an internal checklist someone wrote for a previous financing.

Who the election is usually discussed for

Two situations dominate. The first is founders and early employees who buy restricted stock at or near its then fair market value, subject to a repurchase right that lapses with service. The spread at transfer is small, so the election has a low immediate cost and removes a growing future one. The second is early exercise of unvested stock options, where exercising converts the option into shares that are themselves subject to forfeiture — property under section 83, and therefore eligible for an election.

Restricted stock units are a different instrument. An RSU is typically a contractual promise to deliver shares in the future rather than a present transfer of property, and section 83(b) applies to transferred property. That distinction is why RSU holders are usually told the election is unavailable to them, and why the answer depends on how the specific award is drafted.

Early-exercised incentive stock options add another layer, because ISOs have their own regular-tax regime and a separate alternative minimum tax adjustment. The interaction between an 83(b) election and the AMT measurement date on early-exercised ISO shares is genuinely technical. The mechanism is set out in the companion guide to AMT and incentive stock options; the conclusion for any specific grant belongs to a CPA who has read the award agreement.

The risk nobody puts on the slide

An 83(b) election accelerates a tax payment on stock that has not been sold and may never be sellable. Section 83(b)(1) says plainly that if the property is subsequently forfeited, "no deduction shall be allowed in respect of such forfeiture." A founder who elects, pays tax on the transfer-date spread, then leaves before vesting and hands the shares back does not get that tax returned as an ordinary deduction.

The same asymmetry applies when the company simply fails. The election was made against a valuation that later went to zero. Whatever relief is available then comes through the capital loss rules, which are limited in how much can offset ordinary income in a year, not through undoing the election. This is why the election is comparatively easy to justify when the spread at transfer is a few hundred dollars and much harder when it is six figures.

What the statement has to contain

Contents required by Treas. Reg. §1.83-2(e)
ItemWhat it means in practice
Name, address, taxpayer identification numberThe individual making the election, not the company
Description of each propertyShare count, class, and issuer — enough to identify the exact block
Date of transfer and the taxable yearThe date the 30 days run from, and the year the income falls in
Nature of the restrictionsThe vesting schedule and the repurchase right that creates the forfeiture risk
Fair market value at transferDetermined without regard to restrictions other than those that will never lapse
Amount paid for the propertyThe purchase price actually paid, which may be nominal or zero
Confirmation copies were furnishedStatement that a copy went to the person for whom the services are performed

Summarised from 26 CFR §1.83-2(e). Read the regulation itself before drafting a statement.

One further point from the regulation: under §1.83-2(f) an election may not be revoked except with the consent of the Commissioner, and consent is confined to cases where the filer was mistaken about the underlying transaction and asks within 60 days of discovering the mistake. A mistake about value, or the stock later being worth less, is expressly not a ground.

Where the election shows up on the cap table

From the company’s side, the election is a document to collect and keep. Diligence in a financing or acquisition routinely asks for every 83(b) election filed by every holder of restricted stock, along with proof of timely filing. Missing elections are a standard diligence finding, and the usual remedy is a disclosure and an indemnity rather than a fix, because the deadline has long since passed.

That is a records problem as much as a tax one. The stock ledger records who owns what; the election file records how those shares are taxed. Both belong in the same place as the underlying purchase agreements rather than in personal inboxes, and both are covered in the companion guide to stock ledgers and transfer agents.

Frequently asked questions

What is the 83(b) election deadline?
Section 83(b)(2) requires the election to be made not later than 30 days after the date of the transfer of the property. Treas. Reg. §1.83-2(b) states the same limit. The IRS applies the usual rule that a deadline falling on a Saturday, Sunday, or legal holiday moves to the next business day.
What happens if I miss the 30-day deadline?
There is no ordinary extension or late-election procedure. If the deadline passes, section 83(a) governs and the stock is taxed as the substantial risk of forfeiture lapses. Anyone who believes they have missed it should raise it with a tax adviser immediately rather than filing late and hoping.
How do I file an 83(b) election?
By filing a written statement meeting Treas. Reg. §1.83-2(e) with the IRS office where the filer files their return, and furnishing a copy to the person for whom the services were performed. The IRS also publishes Form 15620, Section 83(b) Election, and states that use of the form is voluntary.
Do I need an 83(b) election for RSUs?
Generally not, because a restricted stock unit is usually a promise to deliver shares in the future rather than a present transfer of property, and section 83(b) applies to transferred property. The answer depends on how the specific award is drafted, so it is a question for the award agreement and a CPA.
Can an 83(b) election be revoked?
Only with the consent of the Commissioner. Treas. Reg. §1.83-2(f) confines that consent to cases where the person was mistaken about the underlying transaction and requests revocation within 60 days of discovering the mistake. A mistake about the value of the property is not a ground for revocation.
Is an 83(b) election worth it?
It depends entirely on the spread between what was paid and what the stock was worth at transfer, and on the filer’s ability to absorb tax on shares that could later be forfeited. When the spread is near zero the cost is small; when it is large the election is a real cash outlay on an illiquid asset. This is a decision for a CPA, not a guide.

Sources

External links open in a new tab.

  1. 26 U.S. Code §83 — Property transferred in connection with performance of servicesCornell Legal Information InstituteSubsection (b)(2) carries the 30-day deadline; (b)(1) carries the no-deduction-on-forfeiture rule.Checked 11 Aug 2026
  2. 26 CFR §1.83-2 — Election to include in gross income in year of transferCornell Legal Information InstituteFiling deadline, filing location, required contents, and the revocation rule.Checked 11 Aug 2026
  3. Form 15620, Section 83(b) ElectionInternal Revenue ServiceChecked 11 Aug 2026
  4. Update to the 2024 Publication 525 for Section 83(b) electionInternal Revenue ServiceStates that the election may be made by written statement or by Form 15620.Checked 11 Aug 2026
  5. 26 U.S. Code §56 — Adjustments in computing alternative minimum taxable incomeCornell Legal Information InstituteSubsection (b)(3) is the incentive stock option AMT adjustment referenced above.Checked 11 Aug 2026

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The 83(b) election, and the 30-day deadline that governs it

What the election changes about how restricted stock is taxed, who it tends to help, how it is filed, and what happens to the tax you paid if the shares are forfeited.

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