Meaning
Election window for determining the tax treatment of unvested stock. A section 83b election timing determines the specific period during which a founder notifies the revenue service of their choice. This choice moves the taxation event from the date of vesting to the date of grant.
Filing Deadline
Strict adherence to the calendar is required to qualify for this tax treatment. The section 83b election timing window closes exactly thirty days after the stock is transferred to the founder. No extensions are granted for missing this deadline, and a late filing results in the default treatment where tax is due as the shares vest at potentially higher values.
Tax Benefit
Paying tax on the value of the shares at the start often results in significant savings for the founder. When the section 83b election timing is met, any subsequent increase in the value of the stock is treated as capital gain instead of ordinary income. This strategy is effective when the company is in its earliest stages and the share price is nominal.
Forfeiture Risk
Future disposal of the stock at a price lower than the grant date value results in a capital loss that cannot be carried back to offset the initial tax paid. The section 83b election timing creates a permanent risk that the participant pays tax on value they never actually realize. This outcome occurs if the shares are forfeited or if the company value declines significantly before a liquidity event.