83(b) Election

What Is an 83(b) Election?

An 83(b) election is a filing you make with the IRS within 30 days of receiving restricted stock (stock subject to vesting or other restrictions) to elect to be taxed on the stock's current fair market value rather than being taxed as the stock vests over time. Named after Section 83(b) of the Internal Revenue Code, this election is one of the most important tax planning tools available to startup employees, particularly those who early exercise their stock options.

How the 83(b) Election Works

Without an 83(b) Election

If you receive restricted stock (for example, through early exercising unvested options) and do not file an 83(b) election, you will be taxed on each vesting tranche at the FMV on the date it vests. If the company's value increases between the purchase date and the vesting dates, you will owe progressively more tax on each tranche — all at ordinary income rates.

With an 83(b) Election

If you file an 83(b) election, you choose to recognize the income immediately, based on the FMV at the time of purchase. If you early exercise when the FMV equals or is close to the exercise price, the taxable amount is zero or negligible. From that point forward, all future appreciation is treated as capital gains, and the holding period clock begins immediately.

The 30-Day Deadline

The 83(b) election must be filed with the IRS within 30 calendar days of receiving the restricted stock. There are no extensions and no exceptions. Missing this deadline means you cannot make the election, and you will be taxed at vesting. This is one of the most time-sensitive filings in tax law, and missing it can cost you hundreds of thousands of dollars or more.

Filing the 83(b) Election

What You Need to Do

1. Complete the election form — There is no official IRS form. You write a letter containing required information including your name, address, Social Security number, the property description, the date of transfer, the FMV, the amount paid, and a statement that you are making the election.
2. Mail it to the IRS — Send the completed form to the IRS service center where you file your tax return. Use certified mail with return receipt to prove timely filing.
3. Provide a copy to your employer — Your company needs a copy for their records.
4. Attach a copy to your tax return — Include a copy with your federal tax return for the year of the election.

Common Mistakes

• Missing the 30-day deadline — The single most costly mistake. Set reminders immediately.
• Not mailing via certified mail — Without proof of mailing, you cannot demonstrate timely filing if the IRS loses the form.
• Not informing your employer — Your employer needs to know about the election for their tax reporting.

Practical Implications for Startup Employees

The Ideal Scenario

The best time to file an 83(b) election is when you early exercise stock options at a company where the FMV equals the exercise price — typically at a very early stage. In this scenario, the taxable income is zero. You pay for the shares, file the 83(b) election, and start the capital gains clock. If the company succeeds and the shares appreciate dramatically, all of that gain can be taxed at long-term capital gains rates (or potentially excluded entirely under QSBS rules).

The Risk

The downside of the 83(b) election is that you are paying for shares (and possibly paying taxes on them) that you may never fully vest or that may ultimately be worthless. If you leave the company before vesting, the company repurchases your unvested shares, and you do not get a tax refund for taxes paid on those shares. If the company fails, you lose your investment.

When Not to File

If the current FMV is significantly higher than what you paid and you would owe substantial taxes on the spread, an 83(b) election may not be advisable. The election accelerates the tax liability to today, which only makes sense if you expect the value to increase further and want to avoid even higher taxes in the future.

How It Relates to Exercising Stock Options

The 83(b) election is the companion strategy to early exercise. Together, they allow you to minimize taxes and maximize long-term capital gains treatment on your startup equity. If your company permits early exercise and you are in a position to act quickly after receiving your grant, the 83(b) election can be one of the highest-value tax decisions you make in your career. Just do not miss the 30-day window.