USPS Accident Statute of Limitations: Two Deadlines

Two deadlines govern every USPS vehicle accident claim, and neither one is your state's ordinary car-accident statute of limitations. Missing either is almost always fatal to the claim. The only escape is equitable tolling, which the Supreme Court allowed for FTCA deadlines in United States v. Kwai Fun Wong, 575 U.S. 402 (2015), and which courts grant only when the claimant was diligent and an extraordinary circumstance prevented a timely filing.

Deadline 1: Two Years to File Standard Form 95

Under 28 U.S.C. § 2401(b), you must present your administrative claim — Standard Form 95, with a specific sum certain — within two years of the date the claim accrues, typically the date of the accident. This deadline applies instead of, not in addition to, your state's personal injury statute of limitations. A state with a three-year window for ordinary car accidents does not give you three years here; a state with a one-year window does not shorten your two years, either. The FTCA deadline controls, full stop.

Deadline 2: Six Months to Sue After a Denial

Once USPS denies your administrative claim — typically by certified letter — a second, independent clock starts: you have six months from the date of that denial to file a lawsuit in U.S. District Court (28 U.S.C. § 2401(b)). This deadline can fall well outside the original two-year window if USPS took most or all of its allotted six months to investigate before denying the claim. Missing it bars the claim permanently, even though you did everything right up to that point.

What Happens If USPS Stays Silent

If six months pass after you filed your SF-95 with no denial, no settlement, and no other final action, the FTCA lets you treat that silence as a constructive denial and proceed to court (28 U.S.C. § 2675(a)). You aren't required to sue immediately — if settlement talks are progressing, you can continue to wait — but you have the option once the six months have run.

Why the Timeline Trips Up Unrepresented Claimants

A claimant who doesn't know the second deadline exists can spend a year negotiating with a USPS adjuster after a denial, assuming the case is still "open," only to find the six-month litigation window has already closed. The safest practice is to treat every deadline in this process as absolute and calendar it the moment it starts running — not the moment it's convenient to think about it.

Want a quick estimate of your own dates? Our free FTCA deadline calculator works for USPS vehicle accident claims the same way it works for any federal tort claim — it estimates both your SF-95 deadline and, if you already have a denial letter, your six-month lawsuit window.