The deadline makes this an operating process, not a year-end task
A Section 83(b) election can be relevant when property is transferred in connection with services and remains subject to a substantial risk of forfeiture. The election is generally due within 30 days after the property is transferred, which means waiting for tax season can be too late.
The decision itself is tax-specific and should be made with a qualified adviser. Finance and company operations can still make the process much safer by preserving the facts and deadline.
Keep the transfer package together
Retain the signed stock or property purchase agreement, board approval, grant or issuance record, quantity, amount paid, transfer date, vesting terms, valuation support, and any cap-table entry. The transfer date is particularly important because it starts the statutory filing window.
Do not rely on the date the cap-table software was updated if the legal documents show a different transfer date.
Use the current IRS form and preserve filing evidence
The IRS now publishes Form 15620 for a Section 83(b) election. Follow the current form and IRS instructions available at the time of filing rather than an old startup template copied from the internet.
Keep a complete signed copy and evidence of timely delivery or filing with the taxpayer's permanent tax records.
Connect the election to the equity file
The company should note that an election was considered or filed without trying to become the employee's personal tax adviser. Link the record to the underlying grant so future financing, tax, or diligence work can explain the history.
A simple equity-event checklist with a 30-day alert can prevent one of the easiest founder tax deadlines to miss.
Questions buyers usually ask
How long does a founder generally have to make a Section 83(b) election?
The election is generally required within 30 days after the relevant property transfer. Because the consequences are tax-specific, founders should obtain qualified advice immediately after the transfer.
What IRS form is used for an 83(b) election in 2026?
The IRS publishes Form 15620, Section 83(b) Election. Taxpayers should use the current IRS form and instructions available when they file.
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