The 83(b) Election Explained: Founders, Employees, and Restricted Stock | Rausa Russo Law, PLLC

Q: How do I file the 83(b) election in 2026?

As of 2026, the election can be filed by U.S. Postal Service certified mail or, after the IRS's modernization expansion, electronically through certain authorized portals. The election must be received (or postmarked) within 30 days of the transfer. The filing must include the taxpayer's name, address, and TIN; a description of the property; the date of transfer; the nature of the restriction; the fair market value at transfer; the amount paid; the amount included in gross income; and a statement that copies have been sent to the issuer. Best practice is to retain certified-mail tracking documentation and a stamped copy.

Rausa Russo Capital is the Venture & Capital Markets Practice of Rausa Russo Law, PLLC. There is no separate legal entity. This insight is general informational content and is not legal, tax, or investment advice. Consult counsel and a tax adviser about your specific facts.

The 83(b) election is one of the most consequential one-page filings in early-stage tax. Filed correctly within 30 days of receiving unvested founder stock or early-exercising an option, it locks in tax treatment that can be the difference between a large ordinary-income hit on each vesting date and zero current tax with capital-gain treatment on a future sale. Filed late, or not at all, it is unavailable, with no general remedy.

This insight explains what the election does, when the deadline runs, what happens at the deadline, the post-2025 filing practice, and the QSBS-clock interaction that founders consistently overlook.

The Default Rule Without an 83(b) Election

Under 26 U.S.C. § 83(a), when property is transferred to a person in connection with the performance of services and the property is subject to a substantial risk of forfeiture (most commonly, vesting), the recipient does not recognize income at transfer. Income is recognized instead on each date the property vests, in an amount equal to the fair market value at vesting minus any amount paid for the property. That income is ordinary compensation income, taxed at the recipient's marginal rate.

For a founder who issued stock at $0.0001 per share at formation and watches the company grow into a $500 million business over four years, the default rule means the founder owes ordinary income tax on each vesting tranche, computed at the then-current fair market value. The tax bill scales with the company's success. The founder usually has no liquid stock to sell to fund the tax. This is the classic founder-equity tax disaster.

What the 83(b) Election Does

Under 26 U.S.C. § 83(b), the recipient may elect to recognize income at the time of transfer rather than at each vesting date. The income recognized is the fair market value at transfer minus any amount paid. The election is irrevocable.

For founder stock issued at fair market value (typically par, a few thousandths of a cent per share, at incorporation when the company has no enterprise value), the spread is zero. The 83(b) election therefore produces zero current ordinary income tax. The founder's tax basis is set at the purchase price. The holding period for long-term capital gains and for QSBS under Section 1202 begins on the date of transfer.

From that point forward, all appreciation in the stock is capital gain on disposition. The default-rule outcome (ordinary compensation on each vesting date) is replaced with capital-gain treatment on the eventual sale. For a successful exit, the after-tax difference is enormous.

The 30-Day Deadline

The election must be made within 30 days of the date the property is transferred to the recipient. 26 U.S.C. § 83(b)(2). The deadline is statutory. The IRS treats it as jurisdictional. The Tax Court and the federal courts of appeals have consistently refused to apply equitable tolling or grant relief for late filings, even when the failure was the result of attorney error, mail-handling problems, or transparent good faith.

For founders, the date of transfer is the date the founder stock purchase agreement is executed and the consideration is paid (cash, services where permitted, or contributed property). For an early-exercised stock option, the date of transfer is the date of exercise. For a restricted stock unit (RSU) that converts to restricted stock, the date of transfer is the date of conversion.

The 30-day clock runs from the date of transfer, including the date of transfer as day zero. So if stock is issued on April 1, the election is timely if received by the IRS (or postmarked, depending on filing method) on or before April 30. The 30-day window does not pause for weekends or federal holidays unless the 30th day falls on a weekend or holiday, in which case the deadline rolls to the next business day under the default federal due-date rules.

What Happens If You Miss the Deadline

If the election is not made within the 30 days, it is unavailable. The recipient is taxed under the default rule of Section 83(a). There is no general fix.

A handful of edge cases exist where a fix may be available, but each is narrow:

If the stock was never actually transferred for tax purposes (e.g., the stock certificate was issued and the consideration was paid, but the parties later determine the transfer was incomplete), the 30-day window may not have started.
If the transferred stock is later forfeited because the service provider departs before vesting, the recipient may be able to recover any tax paid under the 83(b) election; under 26 C.F.R. § 1.83-2(a), the recipient cannot deduct the previously recognized income, but the basis is preserved.
If the underlying transaction is restructured before the 30-day window expires (e.g., the original grant is canceled and a new grant is issued), the new transfer creates a new 30-day clock.

Outside those narrow circumstances, the missed deadline is final. The Tax Court has rejected requests for equitable relief in cases involving even compelling factual circumstances. The 30-day rule is not the kind of deadline that gets extended.

The QSBS Holding-Period Interaction

For founders who care about Section 1202 (and they should; see our companion QSBS insight), the 83(b) election is also a QSBS planning tool.

When founder stock is unvested and no 83(b) is filed, each vesting tranche is treated as transferred for tax purposes only on the vesting date. For QSBS purposes, the five-year holding period therefore starts on each vesting date, not on the original issuance date. A founder with four-year vesting would not reach QSBS-eligibility on the final tranche until nine years after formation: five years past the vesting date, which is itself four years past formation.

With a timely 83(b) election, the entire grant is treated as transferred on the issuance date, and the QSBS five-year clock starts on issuance. The founder reaches QSBS-eligibility five years after formation, on every share.

The math: missing the 83(b) on a venture-stage company with a five-plus-year exit horizon means giving up Section 1202 treatment on roughly 75 percent of the founder's stock (the three-fourths that vests after year one), in addition to the ordinary-income tax exposure on each vesting date. The combined cost is, for many successful exits, the largest single avoidable tax loss in the founder's career.

The Filing Mechanics in 2026

The 83(b) election filing must include:

The taxpayer's name, address, and taxpayer identification number
A description of the property (e.g., "1,000,000 shares of common stock of [Company], par value $0.00001 per share")
The date the property was transferred and the taxable year for which the election is made
The nature of the restriction (e.g., four-year vesting with one-year cliff, subject to repurchase at original cost on departure)
The fair market value of the property at transfer, computed without regard to the restriction
The amount paid for the property
The amount to be included in gross income (the spread)
A statement that copies of the election have been furnished to the issuer

Filing options as of 2026:

U.S. Postal Service certified mail with return receipt to the IRS service center where the taxpayer files the federal income tax return. Certified mail is the historical safe path; the postmark is conclusive evidence of timely filing.
Electronic filing through authorized IRS portals. Following the IRS's modernization expansion in the 2024-2026 window, certain electronic submission paths are available. Practitioners generally still default to certified mail because the receipt trail is unambiguous.

The filer should retain (i) the postmark receipt or electronic submission confirmation, (ii) the IRS-stamped copy of the election (returned by the IRS in due course), (iii) a copy of the election filed with the company, and (iv) a memo to the file documenting the date of transfer, the consideration paid, and the basis used.

The election is also reported on the recipient's federal income tax return for the year of transfer, in accordance with the instructions to Form W-2 (for employees) or Schedule 1 of Form 1040 (for non-employee service providers and founders).

Where the 83(b) Comes Up Beyond Founder Stock

Three other recurring 83(b) contexts in venture practice:

Early-exercised options

An option that permits exercise before vesting (common in founder-friendly equity incentive plans) creates a fresh 30-day window on each early-exercise date. The exercising option holder receives unvested restricted stock and can elect under Section 83(b) to be taxed on the spread at exercise rather than at each vesting date thereafter. The QSBS clock for the early-exercised stock begins at exercise.

Restricted stock issued to employees and advisors

Equity incentive plan grants of restricted stock (not options, but actual restricted shares) trigger Section 83(a) on each vesting date by default. The recipient can elect under Section 83(b) within 30 days of the grant to be taxed at grant rather than at each vesting date. For low-FMV grants this is often a no-brainer; for high-FMV grants the math depends on growth expectations.

Stock issued for promissory notes

Stock issued in exchange for a promissory note (rare in modern practice; more common in early-2000s structures and in some founder-equity loans) raises specific 83(b) questions about whether the note constitutes "consideration paid" under Section 83 and how a non-recourse note interacts with the election. Specific counsel before the 30-day deadline is essential.

What Founders and Employees Should Do

File 83(b) at every transfer of unvested stock. For founders at formation, it is essentially always the right call. For employees and advisors receiving restricted stock, it is usually right when the FMV at grant is low and growth is expected.
Calendar the 30-day deadline the day the stock is transferred. Set a reminder for day 25 to confirm filing.
File by certified mail with return receipt. Save the postmarked receipt and the stamped copy returned by the IRS.
Furnish a copy to the issuer. The corporate record should include a copy of every 83(b) election filed by founders, employees, and advisors.
Document the FMV used. A short memo to the file explaining how FMV was determined (typically zero spread on founder stock at par; for later grants, the most recent 409A) prevents later auditing problems.

For background on how the 83(b) discipline fits into the broader equity-compensation framework (formation, founder stock purchase agreements, equity incentive plans, 409A valuations, and QSBS), see our long-form guide on Setting Up a Venture: Formation, Capitalization, and Term Sheets and our companion insights on QSBS and 409A valuations.

Frequently Asked Questions

What is an 83(b) election?

An election under 26 U.S.C. Section 83(b) is a one-page filing with the IRS in which a taxpayer who has received unvested property in connection with the performance of services elects to be taxed on the property at the time of transfer, rather than at the time it vests. The election is irrevocable, must be made within 30 days of the transfer, and creates the holding period and tax basis as of the transfer date.

When is the 30-day deadline?

The 30-day clock under Section 83(b)(2) runs from the date of the transfer of the property to the taxpayer. For founder stock issued at incorporation, that is the date the founder stock purchase agreement is executed and the consideration is paid. The deadline is statutory; the IRS treats it as jurisdictional. There is no general extension.

What happens if I miss the 30-day deadline?

The election is unavailable. The taxpayer is taxed under the default rule of Section 83(a): on each vesting date, the spread between the fair market value of the stock at vesting and the amount paid for it is recognized as ordinary compensation income. There is no general fix for a missed 83(b) deadline.

What does the 83(b) election actually accomplish?

For founder stock issued at fair market value, the election creates ordinary income tax of essentially zero, locks in tax basis at the purchase price, starts the long-term capital gains holding period on the issuance date, and starts the QSBS five-year clock under Section 1202 on the issuance date. Without the election, all subsequent appreciation between issuance and vesting becomes ordinary compensation income at vesting.

How do I file the 83(b) election in 2026?

By U.S. Postal Service certified mail or, after the IRS's modernization expansion, electronically through certain authorized portals. The election must be received (or postmarked) within 30 days of the transfer. Best practice is to retain certified-mail tracking documentation and a stamped copy.