83(b) Election Forfeiture: Capital Loss on Unvested Shares

A Section 83(b) election establishes the compensation value of restricted shares when they are transferred, allowing subsequent appreciation to potentially qualify as capital gain. For founders, executives and employees acquiring equity before substantial growth, the benefits can be significant.

However, the election carries financial risk. You may pay for shares and recognize taxable compensation before earning the right to keep them. If you voluntarily leave the company, your employment ends or your service agreement is terminated before vesting, the shares may be forfeited. A decline in value may also reduce what the company returns under its repurchase agreement.

If you made a valid Section 83(b) election and later forfeited substantially nonvested shares, Treas. Reg. §1.83-2(a) may allow a capital loss for purchase consideration you did not recover. The forfeiture does not reverse compensation previously recognized under the election or provide a refund of the related taxes.

What can you recover after forfeiting your shares?

There are two separate questions after forfeiture:

Contractual recovery: Does the equity agreement require the company to return any purchase money?
Tax relief: Does the forfeiture produce a deductible loss under Treas. Reg. §1.83-2(a)?

The regulation does not require the company to reimburse you. Your agreement determines the company’s payment obligations.

Keep three amounts separate:

Purchase consideration: what you paid to acquire the shares.
Elected compensation: the taxable difference between transfer-date fair market value and the purchase price.
Taxes paid: income and applicable employment taxes arising from the compensation.

Our Section 83(b) election and New York equity taxation guide explains election requirements and residency considerations.

Why the election creates risk exposure

Restricted shares have actually been transferred, but the recipient’s right to retain them remains conditional. A founder or executive may, for example, need to provide services for three years before vesting.

Key Risk: An 83(b) election allows you to potentially lock in capital gains on future growth, but it creates asymmetric downside risk. If you forfeit unvested shares, you cannot recover or claim a loss for the income taxes paid on previously recognized compensation.

A valid election generally measures compensation at transfer:

Compensation income = transfer-date fair market value − amount paid.

Without an election, compensation generally is measured when the shares become substantially vested.

The election establishes the compensation amount early. It does not guarantee future value, remove vesting conditions or prevent forfeiture.

It ordinarily applies to actual restricted property, including eligible shares received through early exercise of a nonqualified stock option. RSUs and unexercised options involve different rules. See our Equity-Based Compensation Tax Guide.

How Treas. Reg. §1.83-2(a) protects the unrecovered investment

The regulation treats forfeiture of elected shares while substantially nonvested as a sale or exchange. The potential loss is:

Amount paid for the forfeited shares − amount realized upon forfeiture.

Full recovery of the purchase price produces no loss; partial or no recovery leaves an unrecovered amount. If the shares are capital assets, the loss is capital.

What is a capital asset?

A capital asset is generally property you own, subject to statutory exclusions. Common investment examples include company shares, bonds and mutual fund shares.

Shares held by a founder, executive or employee as an ownership investment generally are capital assets. Inventory held for sale to customers is an example of excluded property.

The distinction matters because capital losses follow different deduction rules from ordinary business losses. See IRC §1221.

Example: $500,000 of shares purchased for $300,000

The purchase and election

On January 15, 2025, Maya, an executive, purchases 100,000 restricted common shares for $3 each.

She pays $300,000 from her bank account under a signed purchase agreement.

Assume:

The shares have a supportable transfer-date fair market value of $500,000.
They remain nontransferable and subject to forfeiture until three years of service are completed.
Maya makes a timely, valid Section 83(b) election.

Her compensation income is:

$500,000 value − $300,000 purchase price = $200,000.

Her normal stock basis becomes $500,000, consisting of purchase consideration plus elected compensation.

Maya leaves before vesting

On September 30, 2026, Maya voluntarily leaves before any shares vest.

Her agreement requires return of the shares through repurchase at the lower of current fair market value or original purchase price.

Assume the repurchase is completed and paid that day, the shares are capital assets, and no other loss limitation applies.

Scenario 1: the company returns $300,000

The shares are worth $750,000, but the agreement permits repurchase at original cost.

$300,000 paid − $300,000 recovered = $0 loss.

Maya recovers her entire $300,000 purchase price, so the potential forfeiture loss is $0. The appreciation she cannot retain does not create a deductible loss.

Scenario 2: the company returns $120,000

Instead, assume the shares fall to $120,000 and the company pays that amount.

$300,000 paid − $120,000 recovered = $180,000 potential capital loss.

Maya recovers $120,000 of her $300,000 purchase price, leaving a potential capital loss of $180,000, subject to capital-loss limitations.

Scenario 3: the company returns nothing

Assume a different original agreement requires surrender without reimbursement.

$300,000 paid − $0 recovered = $300,000 potential capital loss.

Maya recovers none of her $300,000 purchase price, leaving a potential capital loss of $300,000, subject to capital-loss limitations.

Summary of Scenario Outcomes

Scenario	Amount returned	Unrecovered investment	Potential capital loss
1	$300,000	$0	$0
2	$120,000	$180,000	$180,000
3	$0	$300,000	$300,000

In all three scenarios, the forfeiture does not reverse Maya’s $200,000 compensation inclusion.

Why the full stock basis is not deductible

Normal basis generally includes purchase consideration plus compensation recognized under the election. The special forfeiture rule nevertheless limits the loss to unrecovered purchase consideration.

Maya’s normal stock basis is $500,000, but the special forfeiture rule does not permit her to deduct the compensation component. In Scenario 2, her potential loss is therefore $180,000, not the $380,000 difference between her normal basis and the repurchase proceeds.

Revenue Procedure 2012-29, Examples 3 and 6, illustrate repurchase at original cost and forfeiture of shares received without purchase consideration.

Calling a transaction a “repurchase” does not avoid the limitation. Section 1.83-2(a) also covers dispositions that are substantively forfeitures or made in contemplation of forfeiture.

How much tax benefit does the loss provide?

A capital-loss deduction is not a dollar-for-dollar repayment.

Capital losses generally offset capital gains under the applicable netting rules. An individual’s remaining net capital loss offsets up to $3,000 of other income annually, or $1,500 if married filing separately. Unused losses are carried forward.

If Maya’s $180,000 loss is her only capital transaction and she files as single, she generally could deduct $3,000 against other income and carry forward $177,000.

Substantial capital gains could allow for a larger capital loss offset. For example, if Maya has a $180,000 forfeiture loss and $200,000 of capital gains, the forfeiture loss reduces the net capital gain for the year to $20,000.

Loan-funded purchases require additional review

Borrowing cash to purchase shares does not automatically invalidate an election. However, a note delivered as purchase consideration requires careful analysis.

Under Treas. Reg. §1.83-3(a)(2), a purchase financed by debt secured by the shares, without personal liability for all or a substantial portion, may be treated as an option rather than a completed property transfer.

A nonrecourse note, generally allowing the lender to recover only against the collateral, can therefore affect whether shares were transferred for Section 83 purposes and whether the election was effective.

A genuine recourse obligation may receive different treatment. Its face amount is not automatically limited to principal already repaid, but enforceability, economic substance, repayment expectations and subsequent cancellation matter.

If debt previously treated as purchase consideration is forgiven, Treas. Reg. §1.83-4(c) can require income recognition. Do not claim a loss for a cancelled note balance without reviewing these rules.

Dividends received before forfeiture

With a valid election, actual dividends on the elected shares generally are taxed as dividends, even before vesting. Qualified-dividend treatment depends on the usual requirements.

Without an election, dividends on substantially nonvested shares are generally treated as additional compensation.

Later forfeiture does not ordinarily reverse dividends already received and properly reported. Ordinary cash dividends retained by the shareholder generally do not reduce the purchase price used in the forfeiture calculation. Return-of-capital distributions, dividend equivalents and repayment requirements need separate review.

The employer’s deduction on forfeiture

An employer may receive a compensation deduction corresponding to the service provider’s Section 83 income, subject to applicable deduction requirements.

However, Treas. Reg. §1.83-6(c) generally requires an amount previously allowable as a deduction to be included in the employer’s income in the forfeiture year.

For example, an otherwise allowable $200,000 compensation deduction may require $200,000 of income inclusion when the shares are forfeited.

The employer’s recapture does not reverse the recipient’s compensation income or create an additional recipient deduction. Company repurchase payments require separate analysis.

Valuation and supporting documentation

Support the transfer-date value with contemporaneous evidence, such as capitalization records, financing terms, share-class rights and relevant valuation reports.

Fair market value generally disregards restrictions that will lapse. A later decline does not itself establish that the original valuation was wrong, and a preferred-share financing price does not automatically establish common-share value.

Retain:

Purchase and award agreements, vesting terms and payment records.
The election and timely filing evidence.
Valuation and original compensation records.
Separation documents, repurchase calculations and proceeds.
Loan and dividend records, where applicable.

Separate vested shares retained from unvested shares forfeited.

New York treatment

For full-year New York residents, federal adjusted gross income generally forms the starting point under Tax Law §612(a). A properly recognized federal forfeiture loss therefore generally flows into the state calculation, subject to modifications.

Federal capital-loss netting, the annual deduction limitation and carryforwards remain relevant. Prior compensation is not reversed merely because forfeiture occurs.

Nonresidents and part-year residents require separate sourcing and allocation analysis. A loss on personally held investment shares does not automatically become New York-source merely because the company or employment was located there.

Frequently asked questions

Can I claim a loss if I voluntarily leave before vesting?

Potentially. Voluntary departure does not itself prevent relief. The relevant facts include whether elected shares were forfeited while substantially nonvested, the amount paid and the amount recovered.

Can I recover the taxes paid on my election?

Later forfeiture generally does not create a refund of taxes on correctly reported elected compensation. Correcting an original reporting error is a separate issue.

What if the company repurchases at original cost?

Full recovery of the purchase price generally produces no forfeiture loss. See Scenario 1.

What if I paid nothing or reported zero compensation?

These are different situations. If you paid nothing and received nothing on forfeiture, there is generally no forfeiture loss. If you paid fair market value, your election may have produced zero compensation income, but unrecovered purchase consideration may still support a loss.

Is the loss short-term or long-term?

With a valid election, the holding period generally begins just after transfer. A holding period exceeding one year generally produces a long-term loss; one year or less generally produces a short-term loss.

How do I report the forfeiture loss?

A reportable capital loss is reported on Form 8949 and Schedule D for the disposition year. The reporting must reflect the special forfeiture limitation. Reconcile any Form 1099-B and make required adjustments rather than deducting the full compensation-inclusive basis.

What if only some shares are forfeited?

Allocate purchase consideration and elected compensation among the relevant shares. Apply the forfeiture limitation separately to the forfeited shares and preserve the basis records for shares retained.

Can I revoke the Section 83(b) election?

An 83(b) election cannot be revoked without IRS consent. Under Revenue Procedure 2006-31, consent generally will be granted if requested on or before the original election deadline. After that deadline, relief generally requires a qualifying mistake of fact concerning the underlying transaction, with a request made within 60 days after discovering the mistake. A decline in value or disappointed expectations does not qualify.

What if the shares decline in value or are sold after vesting?

A decline alone does not generally create a deduction while shares remain held. A genuine subsequent sale generally uses normal adjusted basis. Worthlessness, redemptions and other dispositions require separate analysis.

Does early exercise of an ISO or NSO change the analysis?

An election may apply to substantially nonvested shares acquired through early exercise of an NSO. ISO shares require separate regular-tax and AMT analysis. See our AMT and AMT credit planning guide.

Will the employer issue a corrected W-2?

Later forfeiture alone generally does not require a corrected W-2 reversing correctly reported elected compensation.

Get professional guidance on your forfeited shares

A forfeiture review should reconcile the purchase agreement, election, compensation records, repurchase proceeds and any financing. Baccus Consulting assists founders, executives and professionals with that analysis and the related federal and multistate reporting.

Get in touch to discuss your tax needs. A discovery consultation establishes the matter and engagement scope. Document review, calculations and technical conclusions are provided under a formal engagement.

This article provides general information. Treatment depends on the agreements, election validity, ownership history and applicable federal and state rules.

Authorities and further reading

IRC §83: restricted-property taxation and election consequences.
Treas. Reg. §1.83-2(a) and (f): forfeiture losses and revocation.
Treas. Reg. §1.83-4(a), (b) and (c): holding period, basis and debt forgiveness.
IRC §1221: capital-asset definition.
Revenue Procedure 2012-29, Section 4 and Examples 3 and 6: forfeiture illustrations.
IRS Publication 525 and IRS Topic 409: restricted property and capital-loss rules.
IRC §1211(b) and §1212(b): individual loss limitations and carryforwards.
Treas. Reg. §1.83-3(a): property transfers and nonrecourse financing.
Treas. Reg. §1.83-6(a) and (c): employer deductions and forfeiture recapture.
Revenue Procedure 2006-31: election revocation.
Treas. Reg. §1.83-1(b)(2): forfeiture without an election.
New York Tax Law §612(a): resident federal-AGI starting point.