Restricted stock that vests over time is normally taxed at each vesting date, on the value then. For a company whose value is growing, that means paying ordinary income tax on an increasing amount at every vest — potentially a large cumulative bill on shares you cannot sell.
An 83(b) election flips it: you elect to be taxed on the whole grant now, at today's value. For early-stage equity worth very little, that tax is often negligible.
This is general information, not tax advice. The deadline is absolute; consult a qualified professional immediately upon receiving a grant.
What changed in 2026
- Electronic filing became available. Digital submission reduced the risk associated with mail delivery, which had been a genuine failure mode.
- Awareness improved among founders. The election became more consistently raised at incorporation, though late-joining employees still missed it.
- The QSBS interaction gained attention. Starting the holding clock earlier interacts with the gain exclusion in QSBS explained, which raised the stakes of the decision.
- The deadline remained unforgiving. No relief mechanism emerged for late filings.
What the election does
|
Without the election |
With the election |
| Taxable event |
Each vesting date |
The grant date only |
| Amount taxed |
Value at each vest |
Value at grant |
| Character |
Ordinary income |
Ordinary income |
| Capital gains clock starts |
At each vest |
At grant |
| Risk if shares become worthless |
Little tax paid |
Tax paid on value never realized |
| Risk if value grows enormously |
Large cumulative ordinary income |
Small tax, gains taxed as capital gain |
The asymmetry is the whole decision. When the grant value is near zero — typical for founder shares or very early employees — the election costs almost nothing and converts all future appreciation into capital gain. When the grant value is already substantial, the election means paying real ordinary income tax immediately on shares you cannot sell.
The deadline
The election must be filed within a short window after the grant date. That window is measured in days, it cannot be extended, and there is no relief for missing it. This is the single most important operational fact about the election.
The practical consequence is that the decision must be made almost immediately upon receiving restricted stock or early-exercising options. Someone who receives a grant, means to look into it, and gets to it a couple of months later has lost the option permanently.
File a copy with your tax return for the year as well, and keep proof of the timely filing indefinitely — you may need to substantiate it years later when the shares are sold.
When it is right
Grant value near zero: almost always file. The cost is minimal and the benefit is potentially large.
Grant value moderate: model it. Compare the immediate tax against the expected tax at vesting under plausible growth scenarios, weighted by the probability the company succeeds.
Grant value substantial: usually do not. Paying significant ordinary income tax now on illiquid shares with uncertain value is a poor trade, and it resembles the exposure problem in ISOs and AMT explained.
Note the interaction with the gain exclusion for qualifying small business stock. Starting the holding period at grant rather than at vest can matter for satisfying holding requirements, which is one more reason to raise the question early.
Common mistakes
- Missing the deadline. Permanent, and the most common failure.
- Filing when the grant value is already high. Real tax on illiquid shares.
- Not keeping proof of filing. You may need it years later.
- Assuming it applies to ordinary options. It applies to restricted stock and to early-exercised options, not to unexercised ones.
- Not filing a copy with the return. A procedural requirement worth following.
- Deciding without professional input. The trade depends on facts specific to you.
FAQ
What if I miss the deadline?
The election is unavailable. You will be taxed at each vest on the value then. There is no extension mechanism.
Does it apply to RSUs?
Generally no. Units are typically not eligible because there is no transfer of property at grant. See RSU vesting tax.
What if the company fails?
You paid tax on value you never realized, and there is generally no refund. A capital loss may be available on the shares, subject to limitations.
Do I need to file every year?
No. It is a one-time filing for a specific grant, within the window after that grant.
Where to go next
For the gain exclusion it interacts with, read QSBS explained. For option taxation, ISOs and AMT explained, and for units, RSU vesting tax.