Startup Founder Saves $380K with 83(b) Election on Restricted Stock

The Problem

This client co-founded an AI/machine learning startup and received 500,000 shares of restricted stock at incorporation, subject to a 4-year vesting schedule. At the time of grant, the shares had a fair market value of $0.001 per share (total value: $500). Without an 83(b) election, the shares would be taxed as ordinary income as they vested over 4 years, at whatever the fair market value was at each vesting date. If the company grew significantly, the tax liability on vesting could be enormous.

The prior attorney mentioned the 83(b) election casually but did not emphasize the 30-day filing deadline or the consequences of missing it. Many founders are not told that the 83(b) election must be filed with the IRS within 30 days of the stock grant date — there is no extension, no late filing relief, and no second chance. If missed, the founder would owe ordinary income tax on shares as they vest, at whatever value they have grown to. This client's attorney fortunately connected them with AE Tax Advisors within the first week of incorporation.

AE Tax Strategy

1. 83(b) Election Filing Under IRC §83(b)

We filed the 83(b) election within 14 days of the stock grant. The election was filed with the IRS, a copy was attached to the founder's personal tax return, and the company was notified. By electing under IRC §83(b), the founder chose to recognize ordinary income on the full 500,000 shares at the grant-date fair market value of $0.001 per share, for a total of $500 in ordinary income. The tax on this $500 was approximately $185 (at the combined federal and Massachusetts marginal rate). Without the election, income would have been recognized at vesting-date values as shares vested over 4 years.

2. Vesting and Growth: The 83(b) Advantage

Over the next 4 years, the company grew from a pre-revenue startup to a $4.2M ARR business. The shares appreciated from $0.001 to $12 per share through multiple funding rounds and revenue growth. Without the 83(b) election, the founder would have recognized approximately $1,500,000 in ordinary income as shares vested ($12/share x 125,000 shares vesting per year over 4 years), taxed at the combined federal (37%) and Massachusetts (5%) rate of 42%, producing a tax liability of $630,000. With the 83(b) election, the founder owed $185 at grant and zero on vesting — all future appreciation was converted from ordinary income to capital gains.

3. Acquisition and Capital Gains Treatment Under IRC §1202 and §1(h)

When the company was acquired 4.5 years after founding, the founder's 500,000 shares were worth $6,000,000 ($12/share). Because the 83(b) election had been filed and the shares were held for more than one year, the entire gain of $5,999,500 ($6,000,000 minus $500 basis) was taxed as long-term capital gains at the 23.8% rate (20% + 3.8% NIIT) rather than ordinary income at 42%. Additionally, because the stock qualified as QSBS under IRC §1202 (C-Corp, held 5+ years, under $50M gross assets), the first $5,000,000 of gain was excluded entirely. The 83(b) election saved approximately $380,000 compared to the no-election scenario.

Before & After Comparison

Tax Category	Before	After	Savings
Ordinary Income Tax (Without 83(b))	$630,000	$0	$630,000
Tax Paid at Grant (With 83(b))	$0	$185	($185)
Capital Gains Tax (With 83(b))	$0	$237,880	($237,880)
QSBS Exclusion Benefit	$0	$1,190,000	$1,190,000
Net Tax Savings	$0	$380,000	$380,000
Total	$630,000	$238,065	$380,000

Key Takeaways

• The 83(b) election must be filed with the IRS within 30 days of the restricted stock grant — there is absolutely no extension or late filing relief available.
• Filing the 83(b) election on restricted stock at incorporation (when values are near zero) converts all future appreciation from ordinary income to capital gains — a rate difference of up to 19.2 percentage points.
• The 83(b) election risk is that if the company fails and shares become worthless, the founder has paid tax (however small) on stock that has no value and can only deduct the loss as a capital loss.
• Combining the 83(b) election with QSBS qualification under IRC §1202 can produce near-zero effective tax rates on startup exits up to $10M in gain.