Shares issued now but subject to vesting or repurchase if someone leaves. Founders typically receive restricted stock at formation. Unlike options, you own the shares immediately but may forfeit them if you leave early.
restricted stock
noun — Shares of company stock that are issued to a recipient immediately but subject to a vesting schedule enforced through a company repurchase right. If the recipient departs before vesting, the company may repurchase unvested shares at the original purchase price. The primary founder equity instrument in C corporations. Eligible for the 83(b) election under Section 83 of the Internal Revenue Code, which can minimize tax liability at grant. Distinguished from stock options (right to buy shares later) and RSUs (promise to deliver shares later).
Why it matters
Restricted stock is how most founders receive their equity at incorporation. Unlike options, you own the shares immediately, but understanding the vesting restrictions and tax implications — especially the 83(b) election — is critical. The 30-day window for filing an 83(b) election is one of the most important deadlines in a founder's early journey.
Missing the 83(b) election is one of the most costly mistakes founders make. Without it, every vesting event triggers an ordinary income tax liability based on the current value of the shares — which could be substantial if the company has grown. With it, you pay tax on the shares' essentially-zero value at grant and convert all future appreciation to capital gains. The difference can be hundreds of thousands of dollars.
Restricted stock also matters for company protection. The vesting schedule and repurchase right ensure that a co-founder who leaves early doesn't walk away with a large block of fully owned shares. This is particularly important before outside investment, when cap table cleanliness directly affects your ability to raise capital. See our article on dead equity and its effects on startups.
How it works
When you receive restricted stock, you get actual shares that are subject to a repurchase right. If you leave before fully vesting, the company can buy back your unvested shares at the original price (usually near zero). Filing an 83(b) election within 30 days lets you pay taxes on the shares' current low value rather than their potentially much higher value as they vest.
For example, if you receive 1 million shares at $0.001/share at incorporation, filing an 83(b) means you pay taxes on $1,000 now rather than on the much higher value those shares will have when they vest over the next four years. If the company grows and the shares are worth $5 each by the time the last tranche vests, without an 83(b) you'd owe ordinary income tax on $1.25M in that final year alone.
After filing the 83(b), the clock starts on your capital gains holding period. If you hold the shares for more than one year after filing, any gain above the grant price qualifies for long-term capital gains rates rather than ordinary income rates. For startup founders expecting a large exit, this is a significant tax advantage.
| Feature | Restricted stock | Stock options | RSUs |
|---|---|---|---|
| Shares issued at | Grant | Exercise (future) | Vesting (future) |
| 83(b) election eligible | Yes | No (NSOs) / early exercise only (ISOs) | No |
| Payment required | Nominal purchase price | Strike price at exercise | None |
| Typical use | Founders at incorporation | Employees post-formation | Late-stage / public company employees |
History and origin
Restricted stock and the 83(b) election are both products of the Tax Reform Act of 1969, which added Section 83 to the Internal Revenue Code. Before Section 83, the tax treatment of property received for services was inconsistent and led to tax planning abuses. Section 83 established clear rules: property received for services is taxed as ordinary income when the restrictions lapse, unless an 83(b) election is filed within 30 days of receipt.
Startup founders and their attorneys quickly recognized the power of the 83(b) election for company formation equity. By filing immediately, founders could lock in the tax consequence when shares had essentially no value, avoiding the income tax hit that would otherwise occur as the company appreciated. This practice became standard in Silicon Valley by the 1980s and is now a universal expectation in any properly structured startup incorporation.
Today, failing to discuss and file the 83(b) election is considered a material omission by startup attorneys. Most incorporation packages from law firms and online legal services like Stripe Atlas and Clerky include 83(b) election filing as a standard part of the founder equity grant process, recognizing how costly the oversight can be.
Frequently asked questions
What is restricted stock?
Restricted stock is actual shares issued to a recipient immediately, but subject to a vesting schedule or repurchase right. The holder owns the shares from day one but may be required to sell them back to the company at the original purchase price if they leave before fully vesting. It is the standard form of equity for startup founders at incorporation.
What is the difference between restricted stock and stock options?
Restricted stock gives the recipient actual shares immediately. Stock options give the recipient the right to purchase shares at a set price in the future. Restricted stock is eligible for the 83(b) election, which can minimize taxes by fixing the taxable event at grant when the value is low. Options do not require an 83(b) election but require payment of the exercise price to convert to shares.
What is the 83(b) election and why does it matter for restricted stock?
The 83(b) election is a tax filing that allows the recipient to pay taxes on restricted stock based on its current fair market value at grant, rather than at each vesting date. For founders who receive restricted stock at incorporation when the company has essentially zero value, filing an 83(b) within 30 days means paying tax on nearly nothing now — rather than paying tax at the much higher value the stock may have when it vests years later. Read our full guide on the 83(b) election.
What happens if I miss the 83(b) election deadline?
The 83(b) election must be filed with the IRS within 30 days of receiving the restricted stock. Missing this deadline is permanent and cannot be corrected. Without the election, each vesting event triggers ordinary income tax on the fair market value of the shares at that time. If the company has grown significantly, this can result in a very large, unexpected tax bill.
How does a company repurchase unvested restricted stock?
When a restricted stock holder leaves before fully vesting, the company exercises its repurchase right to buy back the unvested shares at the original purchase price (typically the par value or a nominal amount like $0.0001 per share). The repurchase right lapses gradually as the holder vests, so after the cliff and through the vesting period, fewer shares remain subject to repurchase.
Can restricted stock be sold or transferred?
Generally no, not while restrictions apply. Restricted stock is subject to transfer restrictions that prevent the holder from selling or transferring unvested shares. Even vested shares in a private company typically cannot be freely sold due to right of first refusal provisions in shareholder agreements. Secondary sales usually require company approval.
What is the difference between restricted stock and an RSA?
Restricted stock and RSA (Restricted Stock Award) are generally the same thing in startup contexts — actual shares issued subject to vesting restrictions and a company repurchase right. "Restricted stock" is the broader term; "RSA" is the specific award instrument. Both are distinguished from RSUs (Restricted Stock Units), which are promises to deliver shares in the future rather than immediate share issuances.
Learn more
- Vesting explained: cliffs, schedules, and acceleration
- The 83(b) election explained
- Types of startup equity explained
- Dead equity: the silent killer of startups
Related terms
- Vesting
- 83(b) Election
- Stock Options
- Founder Equity Split
- RSA (Restricted Stock Award)
- RSU (Restricted Stock Unit)
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