published January 27, 2021

Section 83 is a key part of the Internal Revenue Code (IRC) that all startup founders and employees should be familiar with. Section 83 details how stock options are taxed and how to file for the early exercise of stock options.

Understanding how Section 83 works and how to file an IRS form 83(b) election can mean the difference between paying a small amount of income tax on stock options (or similar equity grants) when you receive them or a huge tax bill when they vest at a higher price later on.

In this article you’ll find information on:

  • What is an 83(b) election
  • Why founders should file an 83(b) election
  • What happens if you don’t file your 83(b)
  • Introduction to equity grants
  • What is the process of filing a section 83(b) election form
  • Where to mail 83(b) election form - list of addresses for all the states

What is an 83(b) election?

Form 83(b) allows you to avoid taking on any tax liability (except income tax if you’re granted stocks worth more than $599.99) for your stock options until they vest, provided that you are purchasing (or granted) them at the Fair Market Value (FMV). The stocks are then taxed at the rate for long term gains when they vest and there is no further liability until that time.

So... why should I file an 83(b) election?

Why would you worry about income you can’t capitalize yet? Simply put, you could be saving quite a bit later in terms of the tax on your shares. At its core, an 83(b) election allows you to convert your stock option gains from short term capital gains to long term capital gains. By filling now, you lock the price at which you’ll be liable at the FMV you acquired the stock.

Short term capital gains are taxed as ordinary income with a potential federal maximum of 39.6%, while long term capital gains are taxed at a rate between 0% and 20% at the time you capitalize them.

Let’s look at a standard example -- startup founder is issued one million shares with a 4 year vesting period and 1 year cliff. That means 25% of the shares will vest a year after he is granted the stock.

Scenario 1)

Founder files an 83(b) election, and the FMV of one million shares at the time of grant is treated as an income to the founder. It means that when the stock is fully vested, after 4 years, the founder will only pay the tax on the FMV at the time of grant.

Scenario 2)

Founder doesn’t file an 83(b) election, which means that when 250,000 shares vest after the first year, the founder would have to pay tax on the FMV at the time of vesting. Effectively, if the value of the shares increases during the first year, the founder has already lost money in taxes.

Assuming the shares are valued at $0.10 at the time of grant, $1 at the end of first year, $3 after second year, $5 after third year and $10 after fourth year, and that founder’s income tax rate is 35 percent, let’s analyze how much tax would founder pay if they sold at different stages.

Notice how 83(b) filing influences the total amount of tax owed.

83b election

Equity Grants

Although there are technically as many types of equity grants (and equity warrants) as corporate lawyers can dream up, there are only a few typically used by most startups. Legally, equity grants are used to compensate founders and other employees, but are not intended to be used to pay or reward investors or service providers, though they sometimes are… don’t worry about this for now.

For now, what you need to know is that there are Non-Qualified Stock Options (NSOs) and Qualified Incentive Stock Options (ISOs). Startups usually issue ISOs to employees and founders as they have tax benefits and are eligible to take the 83(b) election. The distinction between these two types of grants is discussed further in the article ISO vs. NSO: Which Are Better For Employees?

You may have heard of RSUs, or Restricted Stock Units. This term covers any combination of stock options and restricted stock, and is gaining popularity recently thanks to the amount of control it offers new ventures over the exercise of their stock. We’ve outlined the key differences in taxation on restricted stock in the article Employee Stock Compensation: Equity vs. Options.

Back to Section 83b...

Section 83(a) establishes tax responsibilities for employees or founders. IRC Section 83(b) allows stock option holders to write a letter declaring their intention to take a Section 83(b) election to the IRS within 30 days of the original options grant. Since the value of the stock options and the fair market value are the same, there is no tax liability at this time.

A Section 83(b) election is not without risks, and while it is possible to amend a form 83(b), in practice it is incredibly hard to revoke or rescind one once it is filed. It is possible (but highly unlikely) that the value of the shares may decline or the startup may fail—but the market value of early-stage startup stock is usually very low, making the Section 83(b) election a very low-cost choice regardless of the outcome.

Remember … You’ve Only Got 30 Days

Do not forget the 30 day period mentioned above! This is a hard and fast deadline, and once it passes you are disqualified from making a Section 83(b) election. In addition to filing your letter with the IRS, a copy of the section 83(b) election form must be submitted to your employer. If you are married, your spouse must sign the form election as well.

The 30 day 83(b) election deadline begins the day of the award itself, rather than the date on which documents are received. The window includes non-business days (Saturday, Sunday, holidays) as well.

At Capbase, we’ve created a standardised form to make filing your 83(b) as simple as possible. Since you’re likely just beginning, know that your company’s initial stock issuance alone does not trigger the beginning of the 83(b) election window, it is the actual purchase of the stock.

Interestingly, this is one of the few documents that must be submitted with a “wet ink” signature—rather than a digital one. Send the 83(b) election form to the IRS service center where you file your taxes. The IRS will respond with a stamped document to confirm the receipt.

Since you have to mail the 83(b) , what’s the procedure? Where do you mail the 83 (b) election to?

After you printed and signed the documents, the next step is to mail the two copies to the IRS. You need to include the following documents in an envelope by certified mail

1. Transmittal Letter;

2. Copy 1 of the signed original 83(b) Election form;

3. Copy 2 of the signed 83(b) Election form.

3a. Attach a single self-addressed envelope, postage prepaid to Copy 2 of the 83(b) Election form for the IRS to return a date-stamped copy.

Once you have your envelope ready to be mailed, you can find the mailing address on the IRS website where to send it, be sure to use the mailing address where the taxpayer files their income tax return.

If you’re having trouble finding that information, here’s a cheat sheet, with a list of addresses where you can mail your 83(b) election form.

Where to file 83b election form

Summary

  • All founders and employees should be familiar with section 83 of the IRS tax code, which contains information on how stocks, stock options, and other equity grants are taxed.
  • The 83(b) election form must be signed with “wet”/not digital ink and, if you are married, must also be signed by your spouse.
  • The 83(b) election allows you to pay tax on only the current FMV at the time of purchase.
  • To have them taxed as capital gains, you must hold your stock for at least 1 year after exercise.
  • You must file for an 83(b) election form within 30 days of the stock purchase for the IRS to approve the election

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83b ElectionCompliance For StartupsEmployee Equity CompensationStartup Equity
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Serial entrepreneur engineering & business leader who co-founded and led his last to a $14M Series A financing and a successful exit. Years of experience leading teams & building scaleable, secure software systems.

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DISCLOSURE: This article is intended for informational purposes only. It is not intended as nor should be taken as legal advice. If you need legal advice, you should consult an attorney in your geographic area. Capbase's Terms of Service apply to this and all articles posted on this website.