The 83(b) election runs on a 30-day clock with no exceptions. Run through this checklist the moment a client mentions a new restricted stock grant.
Confirm eligibility
Verify the grant is restricted stock, not RSUs — the election isn't available for units
Confirm the exact grant date to calculate the 30-day filing deadline
Decide whether it helps
Model the ordinary income tax due today on the grant-date value
Compare it against the potential capital gains savings on future appreciation
Assess the client's genuine confidence in near-term growth
Weigh the downside: leaving before vesting means tax paid on compensation never received
File it correctly
Complete IRS Form 15620 (the standardized election form introduced in late 2024) — or a written statement meeting Treas. Reg. §1.83-2 if not using the form
File online through the IRS website for instant confirmation, or by mail — use one method only, not both
If filing by mail, send via certified mail with return receipt requested
Provide a signed copy to the employer — this is still required regardless of filing method
Retain a copy and proof of filing in the client file; attaching a copy to the tax return is no longer required (eliminated by the IRS in 2016)
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