A Section 83(b) election can convert ten years of ordinary-income tax on equity into long-term capital gain — but only if you file within 30 calendar days of the grant or early-exercise date. The deadline is hard. The Tax Court has rejected every late-filing argument it has heard, including illness, attorney errors, and certified-mail problems. If you need to make the call, make it quickly and document everything.
Who needs to file an 83(b)?
You can file 83(b) on:
- Restricted stock awards (RSAs) — actual shares granted at incorporation or hire, subject to a vesting schedule
- Early-exercised stock options (NSOs or ISOs) — when your company allows you to exercise unvested options and receive restricted stock
- Restricted property received for services more broadly under §83
You cannot file 83(b) on:
- Standard time-vesting RSUs — there’s no transfer of property at grant; the unit is a contractual promise
- Vested stock options at exercise (you’d file a normal Form 1040 attaching W-2 income for NSOs, or Form 6251 for ISOs)
- Phantom stock or SARs — these are not §83 property
If your grant agreement says “RSU”, 83(b) is unavailable. If it says “RSA”, “restricted stock”, or “early-exercise option”, 83(b) is on the table.
The 30-day clock
Under IRC §83(b)(2), the election must be made “not later than 30 days after the date” of the property transfer. That means:
- Day 1 is the day after the grant or early-exercise date
- Day 30 is the last valid postmark
- The window includes weekends and holidays
- Postmark date counts (not received date) under the §7502 mailbox rule, but only if you use certified mail
If your grant date is March 1, your last valid postmark is March 31. Don’t try to drop a regular envelope in a mailbox on Day 30 — if there’s any USPS delay you have no proof.
What if Day 30 falls on a weekend?
§7503 extends most tax deadlines that fall on a Saturday/Sunday/holiday to the next business day. The IRS generally applies §7503 to 83(b) too, but it’s not universally tested. Treat the 30-day window as 30 calendar days regardless and post early — don’t rely on the weekend extension.
What goes in the 83(b) statement
There is no official IRS form. Rev. Proc. 2012-29 publishes a sample statement; most companies provide their own template. Your statement must contain:
- Your name, address, and taxpayer ID (SSN)
- A description of the property:
- Number of shares
- Class of stock (common, preferred, etc.)
- Company name
- Grant date (or early-exercise date) — the §83 transfer date
- The nature of the restrictions — i.e., the vesting schedule and any other forfeiture conditions
- Fair market value at grant — what the shares are worth on the transfer date, before considering any restrictions
- Amount paid for the property — the strike price for early-exercised options, or zero for an RSA
- Amount included in gross income — the bargain element: (FMV − amount paid) × shares
- A statement that you are making the election under §83(b)
- Your signature and date
If FMV equals the amount paid (FMV = strike on an early-exercised option), the amount included in gross income is zero — you owe no tax now. The election still has effect: it locks your basis at FMV and starts the holding-period clock for capital-gain treatment.
How to file
The election is mailed, not e-filed. The IRS does not accept 83(b) elections through any electronic system. The procedure:
- Print three copies of the signed statement
- Mail two copies by certified mail with return receipt to the IRS Service Center where you would file your annual tax return. The address depends on your state — check the Form 1040 instructions for the current Service Center address. Include a self-addressed stamped envelope so the IRS can return one stamped copy
- Give one copy to your employer for their payroll/equity records — they need it to avoid issuing a W-2 inclusion at vest
- Keep the third copy along with the certified-mail receipt and (when it arrives) the IRS-stamped returned copy
A note on the 2025 procedural change: the IRS no longer requires that you attach a copy of the 83(b) statement to your annual Form 1040. That requirement was eliminated for tax years beginning after July 2015. You only need to mail the original to the Service Center within 30 days; nothing else gets attached to your return.
Records you must keep
The 83(b) statement and the certified-mail receipt are the most important tax records you will ever generate. Keep them:
- For at least the statute of limitations (typically 3 years from the year of any sale of the shares, or 6 years if the IRS thinks you under-reported by more than 25%)
- Indefinitely for shares you may hold for many years before selling
- In multiple places — paper original in a fireproof safe or safe deposit box, scanned PDF in two cloud locations
If the IRS audits the disposition of the shares 8 years from now and you cannot produce evidence the 83(b) was timely filed, you may be re-characterized as having no election — meaning all the deferred ordinary income lands in the original year’s bargain element with interest and penalties. The certified-mail receipt is what stops that audit cold.
Common late-filing scenarios that don’t qualify
The Tax Court has repeatedly held that the 30-day window cannot be extended for:
- Attorneys, CPAs, or financial advisors who failed to file on your behalf
- Hospitalization, illness, or family emergencies during the 30 days
- Postal delivery failures (unless you used certified mail and have the receipt)
- Misunderstanding of the rule or unawareness it existed
- The company’s failure to inform you the election was available
Two narrow exceptions exist: (1) the IRS occasionally grants relief under §301.9100-3 for a missed election when the taxpayer acted reasonably and in good faith and the government’s interest is not prejudiced — but this is discretionary, expensive (PLR fee ~$10K+), and rarely granted; and (2) the §7502 mailbox rule with certified-mail proof can save a postmark-day filing that the IRS claims it didn’t receive.
Should you file 83(b) at all?
The election only saves tax when (1) the bargain at grant is small or zero, and (2) the stock appreciates significantly between grant and vest. Two scenarios where 83(b) goes badly:
- Stock drops below your basis. You’ve prepaid tax on value that no longer exists. The loss is a capital loss only when you sell, and capital losses offset only $3,000 of ordinary income per year.
- You forfeit the shares before vest. Tax paid under 83(b) is not recoverable as a deduction or refund.
Run the numbers in the 83(b) Election Calculator before filing. If the break-even vest price is too far above the current FMV — or if your forecast confidence is low — consider skipping the election and accepting ordinary income at vest.
Key takeaways
- 30 calendar days from the grant or early-exercise date — no exceptions
- Mail by certified return-receipt to your IRS Service Center; keep the receipt indefinitely
- No IRS form name — the statement is yours to draft, but Rev. Proc. 2012-29 has a sample
- Your employer needs a copy so payroll skips the ordinary-income inclusion at vest
- Standard RSUs are not eligible — only RSAs and early-exercised options qualify
- Don’t file unless you’ve run the numbers — 83(b) is irrevocable, and downside is real if the stock fails to appreciate