What Is a Section 83(b) Election? (US Equity Tax)

A Section 83(b) election is a US federal tax election, made under Internal Revenue Code Section 83(b), that changes when a holder of unvested, restricted stock pays income tax on it. Instead of paying ordinary income tax as the stock vests, the holder elects to pay it once, up front, on the value of the stock at the time it was transferred to them. Filed correctly and on time, it can turn a large future tax bill into a small one today, and it starts the clock for long-term capital-gains treatment early. Filed late, or not at all when it should have been, the default tax treatment under Section 83 simply applies instead, and that default can be far more expensive.

This guide explains who the election is for, the 30-day deadline that governs it, how it changes the tax math, and the risk it carries. It is general information about how the election works, not legal or tax advice. Confirm the specifics of your situation with a qualified tax advisor before filing.

Who files a Section 83(b) election

The election is made by the individual who receives property, typically restricted stock, in connection with the performance of services, when that stock is still subject to a substantial risk of forfeiture. In practice this usually means a founder or an early employee who is issued restricted stock (sometimes called an RSA) that vests over time, or an employee who early-exercises a stock option and holds the resulting unvested shares.

The election applies to actual shares, not to unexercised stock options. An option holder who has not yet exercised has not received property to make an election over; the election only becomes relevant once shares are issued and are still subject to vesting.

The election is made by the taxpayer, not by the company. The company's cap table and legal counsel typically supply the facts the form requires, such as the grant date, the number of shares, and the value of the stock at transfer, but the holder signs and files it.

The 30-day filing rule

A Section 83(b) election must be filed with the IRS within 30 days of the transfer of the restricted stock, that is, 30 days from the date the holder actually receives beneficial ownership of the shares, not the date a board resolution approved the grant and not any later vesting date.

This is a hard, relative deadline, not a fixed calendar date, and it runs even over weekends and holidays. Unlike many other tax elections, a missed Section 83(b) deadline generally cannot be cured after the fact: the extension relief available for a range of other elections does not apply here. Once the 30-day window closes without a filing, the opportunity to elect is gone for that transfer.

How the tax works: income at grant versus income at vest

Section 83's default rule, without an election, is that restricted stock is not taxed at transfer. Instead, ordinary income is recognized each time a portion vests, measured as the fair market value of the newly vested shares on that vesting date, minus whatever the holder paid for them. If the company's value has grown between grant and vesting, which is the point of joining an early-stage company, that spread, and the tax on it, grows along with it, and the holder owes tax on each vesting tranche as it comes due.

A Section 83(b) election changes the measurement date. The holder elects to recognize all of the ordinary income at once, at the time of transfer, based on the fair market value of the stock on the grant date minus the amount paid. No further ordinary income is recognized later as the same shares vest.

For an early-stage startup, this is usually the whole appeal. If the restricted stock is priced at or near its fair market value on the grant date, which is standard practice, the spread subject to ordinary income at the election is small, and is often close to zero. Filing the election locks that small number in, instead of leaving the holder exposed to ordinary income tax on a much larger spread at each future vesting date if the company's value rises in the meantime. The fair market value used for this comparison is the same kind of defensible value a private company establishes through a 409A valuation, which is also what prices the stock or option in the first place.

The capital-gains clock

Filing a Section 83(b) election also starts the holding period used to determine whether a later sale qualifies for long-term capital-gains treatment. With the election, that clock starts on the date of transfer, the grant date, for the entire award. Without the election, the holding period for each tranche does not begin until that tranche actually vests, so later tranches start their clock later and are more likely to still be short-term when the holder wants to sell.

Starting the clock earlier, at a grant-date value that is typically low, is the second half of why the election is attractive: by the time the shares vest and are sold, more of the gain has had a chance to become long-term.

The risk: paying tax now on stock you might not keep

The election is a bet, and it carries a real risk. The holder pays ordinary income tax at grant on stock that has not yet vested and is not guaranteed to vest. If the holder leaves the company, or the stock is otherwise forfeited, before vesting completes, the tax already paid on the forfeited portion is generally not recovered. The same is true if the stock simply turns out to be worth less later, or worthless: the election does not come with a refund if the bet does not pay off.

This is why the election is a deliberate choice weighed against the facts of a specific grant, not a default best practice applied automatically to every restricted stock award. It tends to make the most sense when the grant-date value is low, the vesting period is reasonably long, and the holder has a reasonable expectation of staying through enough of the vesting schedule.

How the election works in practice

The holder completes a written election statement identifying the company, the property transferred, the date of transfer, the fair market value at transfer, the amount paid, and the taxable year, signs it, and files it with the IRS within the 30-day window. It is standard practice to keep a signed copy for the holder's own records and to provide a copy to the company as well, so both sides have evidence the election was timely made if it is ever questioned later.

Because an RSA's effective transfer date, its exercise price, and the fair market value that applied at that date are all facts the company's cap table already records, the information behind a Section 83(b) election is a byproduct of running the cap table correctly, not a separate research project. The election itself is a US federal income tax matter and is distinct from Israel's equivalent framework for taxing employee equity, Section 102, which companies with Israeli employees should look at separately.

How Value8 supports Section 83(b) elections

Value8's cap table platform ties Section 83(b) election tracking directly to the underlying grant or stock certificate, rather than treating it as a side spreadsheet someone has to remember to update. The how Value8 does Section 83(b) capability page walks through what that looks like in the product, and the Section 83(b) FAQ answers the most common questions in one place. Because the same grant data also drives stock-based compensation expense, companies that need that side accounted for under US GAAP can see how Value8 does ASC 718.

To see this against your own cap table, explore pricing or get in touch.

This is general information about how a Section 83(b) election works, not legal or tax advice. Confirm the exact rules, deadlines, and consequences that apply to you with your tax advisor before filing.