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Understanding the 83(b) Election: A Critical Step for Startup Founders

September 10, 2025

If you’re a startup founder or early team member receiving restricted stock, there’s a powerful tax move you should know about: the Section 83(b) election. This short IRS filing—typically just a page long—lets you decide when you’ll pay taxes on your stock: now, when the shares are granted, or later, when they vest.
Why does that matter? Because if your company grows in value, choosing the wrong path can mean paying far more in taxes than necessary.  

What Is the 83(b) Election? 

By default, the IRS taxes restricted stock when it vests. That means each time a portion of your shares becomes yours outright, you owe ordinary income tax on the fair market value at that date. If your company’s valuation has skyrocketed since the grant, the tax bill can be painful. 
Filing an 83(b) election within 30 days of receiving restricted stock flips the script. Instead of waiting until vesting, you agree to pay taxes on the value of your shares right away—when they’re often worth very little. From that point forward, any growth in value is generally taxed at long-term capital gains rates when you eventually sell. 

The Concept of “Substantial Risk of Forfeiture” 

Restricted stock is usually subject to what the IRS calls a substantial risk of forfeiture. In plain English, that means you don’t fully own the shares yet because you need to meet certain conditions—such as working for the company for several years or achieving specific milestones. 
If those conditions aren’t met, the company can typically repurchase or cancel your shares. That’s why, without an 83(b) election, the IRS waits until vesting before treating the stock as taxable income. 

What Happens If You Don’t File? 

Here’s where things can get messy: 

  • You’ll pay taxes each time a portion of your shares vests. 
  • The taxable amount will be based on the higher fair market value at vesting, not the lower value at grant. 
  • Both you and the company take on ongoing administrative headaches—valuations, payroll withholdings, W-2 adjustments, and more. 
  • In short, skipping the 83(b) election can create mounting tax obligations and paperwork as the company grows. 

Why the 83(b) Election Can Be a Game-Changer 

The biggest advantage of filing is the chance to lock in a low valuation at the start. If your shares appreciate significantly over time, most of that growth can be taxed as capital gains, which usually carries lower tax rates than ordinary income. 

For example: 

  • Suppose you’re granted 1,000,000 shares worth $0.05 each. At grant, the total value is just $50,000. Filing the election means you pay income tax on that amount now. 
  • Fast forward a few years: if those shares are worth $4.00 each, you won’t owe additional ordinary income tax as they vest. Instead, the increase in value is taxed only when you sell—and likely at a lower capital gains rate. 
  • Without the election, every vesting event would trigger income tax at the then-current value, potentially leaving you with a tax bill you can’t afford—especially since restricted stock typically can’t be sold to cover it. 

When Filing May Not Be the Best Move 

While often beneficial, there are scenarios where making an 83(b) election isn’t ideal: 

  • If you don’t expect to remain with the company through your vesting period. 
  • If the company’s stock value might decline over time. 
  • If you’re receiving stock that’s already fully vested (no election needed). 

Because the election is irrevocable, it’s important to weigh the risks before filing. 

Key Things to Remember

  • Timing is critical: You must file within 30 days of receiving your restricted stock. No extensions. 
  • Proof matters: Mail it to the IRS by certified mail with a return receipt. Keep a copy for yourself and provide one to the company. 
  • Not for everything: 83(b) elections don’t apply to stock options or stock that is fully vested on day one. 

For many startup founders, the 83(b) election is a no-brainer—it can save significant taxes and simplify future reporting. But because every situation is unique, it’s best to review your specific circumstances with an advisor before filing.  

One thing is certain: if you’re receiving restricted stock, ignoring the 83(b) election could be an expensive mistake down the road. Filing it on time can set you and your company up for smoother growth and fewer tax headaches. 

If you are interested in learning more about how this may apply to your personal situation, please reach out here.


Material discussed is meant for general informational purposes only and is not to be construed as tax, legal, or investment advice. Although the information has been gathered from sources believed to be reliable, please note that individual situations can vary. Therefore, the information should be relied upon only when coordinated with individual professional advice.

All scenarios and names mentioned herein are purely fictional and have been created solely for educational purposes. Any resemblance to existing situations, persons or fictional characters is coincidental. The information presented should not be used as the basis for any specific investment advice.