83(b) Elections and Stock Options: When It Applies and When It Does Not

IRC Section 83(b) allows a taxpayer to recognize income at the time of receiving property rather than when restrictions lapse. The critical word is property. Stock options are not property. They are a contractual right to purchase property in the future. You cannot file an 83(b) election on an option grant. The election only becomes relevant when you actually own shares that are subject to a substantial risk of forfeiture, meaning they can be taken back if you leave or fail to meet certain conditions. If someone tells you to file an 83(b) within 30 days of an option grant, ask whether they mean an early exercise. An election filed on an unexercised option does nothing.

Restricted stock awards give you actual shares on the grant date, but those shares are subject to vesting. Because you own the shares from day one, 83(b) applies. You can elect to recognize income on the grant date when the value is low. Stock options, by contrast, give you the right to buy shares later at a predetermined price (the exercise price). Since you do not own shares until you exercise, there is nothing for 83(b) to attach to at the time of the grant. Founders typically receive restricted stock at incorporation for a nominal price. Employees typically receive stock options after the company has a higher valuation.

For a restricted stock award, the 83(b) election taxes the spread on the grant date, so it is cheap only when the stock's value is low or you pay full value for the shares. Founders usually buy at fair market value, which makes the election free. Employees who receive restricted stock after a priced round may face a real bill.

Example (hypothetical): an early employee receives 10,000 restricted shares, pays nothing, and the 409A value is $2.00 per share.

• With an 83(b): $20,000 of wages now, with withholding, and no further ordinary income as the shares vest. Later growth is capital gain.
• Without an 83(b): each tranche is wages at vesting. If 2,500 shares vest when the value is $6.00, that tranche alone is $15,000 of wages, and the four tranches together could exceed $60,000.

If you might leave before vesting, remember that the $20,000 of income reported under the election is not deductible if you forfeit the shares.

Some companies allow employees to early exercise their stock options, meaning they can purchase the underlying shares before the options vest. When you early exercise, you receive shares that are subject to a vesting-based repurchase right, which is a substantial risk of forfeiture. At that point the 83(b) election becomes available, and the 30-day clock starts on the exercise date. If you early exercise 50,000 options at $0.10 per share when the FMV is $0.10, filing the 83(b) means your ordinary income is zero ($0.10 value minus $0.10 paid). Without the election, you would recognize ordinary income on each vesting tranche at whatever the FMV is at that time.

With nonqualified stock options (NSOs), an early exercise plus an 83(b) election moves the ordinary income to the exercise date, where it equals the spread between fair market value and the exercise price at that moment. Any later growth is capital gain.

Example (hypothetical): an employee holds 20,000 unvested NSOs with a $1.00 exercise price and early exercises when the 409A value is $1.50, paying $20,000.

• With an 83(b) filed within 30 days: ordinary income is 20,000 x ($1.50 minus $1.00) = $10,000, reported as wages for the year of exercise. Basis becomes $1.50 per share and the capital gain holding period starts on the exercise date.
• Without an 83(b): nothing is taxed at exercise, but each vesting tranche is taxed as ordinary income on its value at vesting minus $1.00. If 5,000 shares vest when the value is $4.00, that tranche alone creates 5,000 x $3.00 = $15,000 of wages.

The best case is exercising when the exercise price still equals fair market value, so the election reports zero income. That usually means exercising soon after grant.

Incentive stock options (ISOs) have special tax treatment under IRC Section 422. When you exercise an ISO and hold the shares, there is no regular income tax, but the spread is an AMT preference item. For regular tax, an early-exercised ISO with no disqualifying disposition is not taxed at exercise anyway, so the 83(b) matters for AMT. If you file it, the AMT spread is measured at exercise, which is zero if the exercise price equals fair market value. Without it, the AMT spread is measured at each vesting date, when the shares may be worth far more. However, the 83(b) election also means the shares are treated as having been transferred to you on the exercise date for purposes of the ISO holding period requirements. You must hold for at least two years from the option grant date and one year from the exercise date to get ISO tax treatment on the eventual sale.

Early exercise puts your cash at risk before you have earned the shares, so it suits people who are confident in the company and can afford to lose the exercise price. Three risks are worth weighing.

• Forfeiture. If you leave before vesting, the company typically repurchases unvested shares at the lower of your cost or fair market value. Under Treas. Reg. §1.83-2(a), your loss is limited to what you paid minus what you get back, and any income you reported with the 83(b) is not deductible.
• Company failure. If the company fails, the cash you paid becomes a capital loss.
• The $100,000 ISO limit. Under IRC §422(d), ISOs that first become exercisable in a calendar year on stock worth more than $100,000 (measured at grant) are treated as NSOs. Plans that allow immediate early exercise make the whole grant exercisable in year one, so a larger grant can exceed the limit at once and part of it becomes NSOs.

After an ISO exercise, the company must give you Form 3921, which reports the grant date, exercise date, exercise price and fair market value you need for AMT and basis records.

The process is the same as for founder stock. Within 30 days of the exercise date, either submit IRS Form 15620 online through the IRS website (you sign in with ID.me and get an immediate confirmation) or mail a signed election to the IRS service center where you file your individual return, using certified mail so you have a postmarked receipt. Do one or the other, not both.

Give the company a copy for its stock records. You no longer attach a copy to your Form 1040. Keep the confirmation or receipt with your exercise paperwork, because you will need both to prove your basis and holding period when you sell. This is general information, not tax advice for your specific facts.