Electronic Filing of Section 83(b) Elections
A Section 83(b) election is one of the most important tax documents a founder or early employee will file in their startup career. Yet many people don't understand what it does, how to file it, or what happens if they miss the deadline. The IRS has recently modernized the filing process to allow electronic submission, but the stakes remain the same: a missed or improperly filed 83(b) election can cost you thousands in unexpected taxes.
What Is a Section 83(b) Election and Why It Matters
When you receive restricted stock or stock options that vest over time, the law has a default rule: you don't pay tax on the stock until it vests. That sounds good, but there's a catch. When the stock vests, you'll owe ordinary income tax on the difference between what you paid (usually nothing) and the fair market value (FMV) at the time of vesting—often a much higher number.
A Section 83(b) election changes this. By filing it within 30 days of receiving your shares, you can elect to be taxed immediately on the stock's current value—which is typically very low when you join a startup. This "locks in" the FMV for tax purposes. As the company grows and the stock appreciates, that appreciation is taxed as a capital gain (usually long-term capital gain if you hold long enough), not ordinary income. That's dramatically better from a tax perspective.
Here's a concrete example: You receive 100,000 restricted shares at your startup when the FMV is $0.01 per share. Without a 83(b) election, you'd owe no tax initially. But if the stock vests over four years and the FMV grows to $1.00 per share after two years, you'd owe ordinary income tax on $1.00 per share as it vests—a big tax bill. With a 83(b) election filed on time, you pay ordinary income tax on $0.01 per share immediately (often $0 or a nominal amount), and all future appreciation is capital gains.
For founders and early employees, this election is usually a must. The cost of filing is $0. The cost of not filing can be tens of thousands of dollars.
The Old Paper Filing Process
For decades, the only way to file a Section 83(b) election was by paper. Here's how it worked:
You'd complete IRS Form 3921 (for stock) or write a letter with the required information (the statute doesn't prescribe a form). You'd then send it by certified mail to the IRS address for your district, along with a copy to your employer's tax department. The critical deadline was 30 days from when you received the restricted stock or grant. That 30-day window started on the grant date, not when you received the physical certificate or notice.
The paper filing process had several pain points. Founders and employees often didn't know about the election until weeks after their grant date, making the deadline tight. Certified mail could be delayed or lost. The IRS had many regional filing addresses, and sending it to the wrong one could be problematic. There was no confirmation the IRS received it; you had to hope the certified mail receipt was sufficient proof. If the IRS later denied your election (or said they never received it), fighting that battle took time and expense.
The New Electronic Filing Option
In recent years, the IRS modernized its systems to allow electronic filing of Section 83(b) elections. This is a game-changer for accuracy and peace of mind. The IRS now accepts electronic submissions through its e-Services platform, which provides immediate confirmation and a filing receipt.
Electronic filing eliminates mail delays and the uncertainty of certified mail. It provides a digitized record. If the IRS questions your election years later, you have proof of filing with a timestamp. The process is also faster and more convenient—no need to locate the nearest IRS office or figure out which address to use.
You can still file by paper, and paper filings are still valid. But if you have the option to file electronically, it's usually the better choice.
Step-by-Step: Electronic Filing
Step 1: Gather the Required Information
Before you start, you'll need:
- Your full legal name and Social Security number
- Your employer's name and federal Employer Identification Number (EIN)
- The grant date of the restricted stock or stock option
- The number of shares granted
- The fair market value (FMV) per share on the grant date
- A description of the restrictions (e.g., "vesting over 4 years with 1-year cliff")
- Your contact information
Step 2: Access IRS e-Services
Go to the IRS e-Services portal at https://eservices.irs.gov. You'll need to set up or log into an IRS account. If you don't have one, you can create one using your Social Security number and either an EIN (if you're filing as a business) or personal information if you're filing as an individual. The setup process typically takes a few minutes.
Step 3: Complete the Form
Once logged in, navigate to the Section 83(b) election filing option. The IRS provides a digital form with fields for all required information. Fill in each field accurately:
- Taxpayer Information: Your name, SSN, and address
- Employer Information: The company name, EIN, and address
- Stock Information: Grant date, number of shares, FMV on grant date, and a description of vesting terms
- Election Statement: A statement that you are electing under Section 83(b) to include the FMV in gross income for the year of receipt
The form will calculate the amount included in gross income (number of shares × FMV per share) for your reference.
Step 4: Review and Submit
Before submitting, review every field. A mistake in your SSN, EIN, grant date, or FMV can cause problems. Once you're satisfied, submit the form electronically. The IRS system will provide a confirmation number and filing timestamp immediately.
Step 5: Save Your Confirmation
Download and save your filing confirmation. This is your proof of electronic filing. Store it with your tax records. You may also want to print it.
Step 6: Provide a Copy to Your Employer
Although you filed electronically with the IRS, you should also send a copy to your employer's tax or finance department. This ensures they have record of your election and can account for it on their records. Email with a read receipt is fine for this step.
Step-by-Step: Paper Filing (If You Prefer)
If you're not comfortable with electronic filing or have reasons to use paper, here's the process:
Step 1: Prepare the Written Election
Write a letter (or complete Form 3921 if your company prefers). The letter must include:
- Your name, address, and SSN
- Your employer's name, address, and EIN
- A statement that you are electing under Section 83(b) to include in gross income the fair market value of the property at the time of receipt
- The date you received the stock or grant
- A complete description of the property (e.g., "100,000 shares of common stock of [Company Name], Inc.")
- A description of the restrictions (vesting schedule, etc.)
- The FMV of the property on the grant date and how it was determined
- The amount you included in gross income (shares × FMV)
- A statement that you're including this election with your tax return for the year in which you received the property, or as otherwise required by regulation
Step 2: Make Copies
Make at least three copies: one for the IRS, one for your employer, and one for your records.
Step 3: Send to the IRS
Send one copy by certified mail with return receipt requested to the IRS office serving your area. The address depends on your state of residence. You can find the correct address on the IRS website under "Addresses for Mailing." Typical addresses are IRS Service Centers, not local offices.
Step 4: Provide Copies to Your Employer and Keep Your Copy
Send a copy to your employer and keep your copy with your records.
Step 5: Keep the Certified Mail Receipt
Keep the certified mail receipt showing the mailing date and the IRS's signature accepting the mail. This is your proof of timely filing.
The 30-Day Deadline: When It Starts and What Counts
The 30-day deadline is strict and unforgiving. Here's what you need to know:
When the Clock Starts
The 30 days runs from the grant date of the stock or options, not from when you physically receive your stock certificate or notice. The grant date is the date the board of directors approved the grant (assuming board approval was required). This is critical: you have only 30 days from that board approval date to file your election, regardless of when you find out about the grant.
What "Filed" Means
For electronic filing, "filed" means the IRS receives your submission through e-Services. The filing timestamp is your proof of when it was filed. As long as the timestamp is within 30 days of the grant date, you're good.
For paper filing, "filed" is trickier. The IRS regulations say the election must be "filed" (or "furnished to the employer") within 30 days. Courts and the IRS have generally held that mailing by certified mail within the 30-day window, even if the IRS doesn't physically receive it until after day 30, is acceptable—as long as the postmark date is within 30 days. However, this is not guaranteed. To be completely safe, send your paper election so it arrives well before day 30, not on day 30.
Counting the Days
The 30 days is counted inclusively. If your grant date is April 1, day 1 is April 1 and day 30 is April 30. You must file by midnight on April 30 (or the postmark must be April 30 for paper filing).
Common Mistakes That Can Sink Your Election
Wrong Address
For paper filings, sending your election to the wrong IRS address can delay it or cause it to be lost. Always verify the correct IRS address for your state before mailing.
Missing Information
Leaving out your SSN, the employer's EIN, the grant date, or the FMV can cause the IRS to reject your election. If you're filing electronically, the form will flag missing required fields. If you're filing by paper, be thorough and complete.
Wrong FMV
The FMV must be reasonable and supportable. For early-stage private companies, the FMV is typically the price paid by recent investors or a 409A valuation. If you guess or use an unrealistic number, the IRS may challenge it years later. Ask your company for the agreed-upon FMV for that grant date.
Filing Late
Missing the 30-day deadline is the most common and most costly mistake. Once the window closes, it's closed. You cannot extend it or file late with IRS permission. No exceptions.
Not Keeping Copies
If you file electronically, save your confirmation. If you file by paper, save the certified mail receipt and your copy of the election. Years later, if the IRS questions your election or you want to verify that you filed, you'll need this proof.
Not Notifying Your Employer
Even if you file with the IRS, if your employer doesn't know you filed an election, they may not account for it properly in their records. Send a copy to your company's tax or finance contact.
Filing Before the Grant
You cannot file a 83(b) election before you receive the stock. The election is made upon receipt. If you try to file before the grant date, the IRS will reject it.
What Happens If You Miss the Deadline
There is no extension, no exception, and no appeal. If you miss the 30-day deadline, your 83(b) election is gone. The default tax rule applies: you are taxed as each tranche vests, not on the initial FMV.
This can be devastating. Consider this true scenario:
A founder received 1,000,000 restricted shares in 2015 when the FMV was $0.001 per share. She did not file a 83(b) election (didn't know about it; wasn't well-advised by her attorney). The company grew. By 2019, when her shares were fully vested, the FMV had grown to $2.00 per share. She had to report $2 million in taxable ordinary income in 2019 on vesting, even though she hadn't sold any shares. Her tax bill for that year was over $600,000 (at combined federal and state rates). Had she filed a 83(b) election in 2015, she would have reported only $1,000 in ordinary income, and the $2 million appreciation would have been long-term capital gains, saving her several hundred thousand dollars in taxes.
Another common scenario:
An employee received stock options (not restricted stock). She didn't realize that exercising the options would create restricted stock subject to vesting, and the 30-day window to file a 83(b) election started at exercise, not when the company was sold. By the time she sold her shares in a liquidity event, the 30-day window had long passed. She owed ordinary income tax on the difference between her exercise price and the sale price—far more than if she'd filed a 83(b) election at exercise.
There are rare exceptions in certain circumstances (for example, if a 83(b) election was filed for you by your company's payroll provider and they made a significant error), but these are truly exceptional. As a general rule: if you miss the deadline, your election is lost.
Required Information and the Form
The IRS does not prescribe a specific form for Section 83(b) elections. You can write a letter (as described above) or use Form 3921 or a template provided by your company. The key is that the election must include all the required information:
- Taxpayer's name, address, and SSN
- Employer's name, address, and EIN
- Description of the property (number of shares, type of stock, company name)
- Date of receipt (grant date)
- FMV of the property on the date of receipt and the basis for that valuation
- Amount of money or other property paid
- Description of all conditions and restrictions
- A statement that the election is being made under IRC Section 83(b)
- The amount being included in gross income
Whether you use paper or electronic filing, make sure each of these items is clear and complete. Ambiguity invites IRS scrutiny.
Do You Need to Notify Your Employer?
Yes. While filing with the IRS satisfies the tax law requirement, you should also notify your employer's tax or finance department. Provide them with a copy of your election and the filing confirmation. This accomplishes two things:
First, it ensures your employer's records reflect your election. If the IRS later audits your employer or you, having the election in the company's records is helpful.
Second, it's a courtesy to your company. They may need to track 83(b) elections for tax reporting and to ensure they understand the tax implications of their equity grants.
Some companies have a formal process for collecting and filing 83(b) elections on behalf of their employees. If yours does, follow their process. If not, inform your tax contact directly.
Interaction with State Tax Filing Requirements
Section 83(b) is a federal election. Some states honor it automatically; others require a separate state election. Washington, California, and other high-tax states may have their own rules or preferences.
For example, in some states, you may need to file a copy of your federal 83(b) election with the state tax authority within a certain period. In other states, state law treats the election the same way as federal law without requiring a separate filing.
Check with your tax advisor or the tax authority in your state if you live or work in a state with significant income tax. The good news is that if you're required to file a state election, it's usually a simple matter of sending a copy of your federal election to the state tax office.
Practical Checklist for Founders and Employees
When you receive restricted stock or stock options that vest, follow this checklist:
- Immediately note the grant date. Mark it on your calendar. The 30-day clock has started.
- Determine if a 83(b) election is appropriate. If you received restricted stock or if exercising options will create restricted stock, the answer is almost always yes. Consult your tax advisor if you're unsure.
- Obtain the required information:
- Grant date from your stock grant letter or board minutes
- Number of shares
- FMV on the grant date from your company (often included in the grant letter or a 409A valuation)
- Vesting schedule
- Company name and EIN
- Decide: paper or electronic filing? Electronic is usually better, but either is acceptable.
- File within 30 days. Don't wait. File as soon as you have the information. Use a calendar reminder set to day 15 or so as a deadline for filing, to give yourself a buffer.
- Obtain and save your filing confirmation. For electronic filing, download the confirmation number. For paper filing, save the certified mail receipt.
- Send a copy to your employer. Email it to your company's tax contact with a note that you've filed a 83(b) election for your grant dated [date].
- File a copy with your state if required. If you live or work in a state that requires a state election, file it promptly.
- Keep all documentation with your tax records. Store the election, confirmation, and any correspondence for at least seven years.
Taking these steps takes a few hours of your time but can save you tens of thousands of dollars in taxes over your career at a startup. It's one of the best investments of time you can make as a founder or early employee.
For More Information
For a detailed, comprehensive guide to Section 83(b) elections, including examples and advanced planning strategies, see our Section 83(b) Election Complete Guide.
Related Reading
For more on startup fundraising and securities law, see our Complete Guide to Regulation D, Rule 506(b) vs. 506(c) Comparison, and Accredited Investor Rules.
