How Long Does a Car Accident Settlement Take?

These numbers come from 58,380 closed federal cases coded “Motor Vehicle Personal Injury” in Federal Judicial Center records. Federal courts hear a car accident case only in certain situations, such as when the parties are citizens of different states and more than $75,000 is at stake (28 U.S.C. § 1332), or when the United States is the defendant (28 U.S.C. § 1346). State court cases are not in this data.

The federal clock runs from the federal filing to the end of the federal case. Some cases were sent back to state court and continued there; the chart on case outcomes below shows how often.

Time spent on the insurance claim before the lawsuit is not included.

• Investigation still open. An insurer that needs more time must say so in writing and repeat the update on a schedule: every 30 calendar days in California (10 CCR § 2695.7(c)(1)) and every 90 days in New York (11 NYCRR 216.6(c)). In Pennsylvania, an investigation should be done within 30 days, with written explanations every 45 days if it is not (31 Pa. Code § 146.6).
• Treatment not finished. Until your bills and records show the full loss, the insurer does not have the proof it needs to decide on the amount.
• Medicare. Medicare sends its conditional payment letter within 65 days after its Rights and Responsibilities letter, and a dispute over listed bills can take 45 calendar days to review (CMS).
• Several injured people, one policy limit. In Florida, an insurer facing competing claims above the limits is protected if, within 90 days, it files an interpleader action or makes the full limits available in agreed arbitration (Fla. Stat. § 624.155(6)).

If an insurer misses its deadlines, you can complain to your state insurance department. The NAIC model law is enforced by regulators and does not by itself give you a right to sue (NAIC Model 900).

The National Association of Insurance Commissioners (NAIC) publishes a model act (NAIC Model 900) and a model regulation (NAIC Model 902) on claim handling, and states may adapt them. Examples of the rules as written:

• NAIC model: acknowledge a claim within 15 days and answer letters within 15 days. On claims under your own policy, accept or deny within 21 days after proof of loss, with written updates every 45 days if more time is needed. Pay within 30 days once liability is affirmed and the amount is not in dispute.
• California (claims on your own policy and against another driver's insurer): acknowledge and start investigating within 15 calendar days (§ 2695.5); accept or deny within 40 calendar days after proof of claim, with updates every 30 calendar days if more time is needed (§ 2695.7). The 40-day rule does not apply to auto repair bills under collision and comprehensive coverage.
• Texas (claims on your own policy only): acknowledge and start investigating by the 15th day; accept or reject by the 15th business day after receiving all requested items, or within 45 days after telling you it needs more time. An insurer that is liable for the claim and breaks these rules owes interest at 18 percent a year plus attorney's fees (Tex. Ins. Code ch. 542).
• New York (all claimants): acknowledge within 15 business days (11 NYCRR 216.4); accept or reject within 15 business days after proof of loss and the requested items, with letters every 90 days while the claim stays unsettled outside of litigation or arbitration (11 NYCRR 216.6). No-fault (PIP) benefits are overdue if not paid within thirty days after proof of the loss (Ins. Law § 5106).
• Pennsylvania: acknowledge within 10 working days (§ 146.5); finish the investigation within 30 days or explain every 45 days (§ 146.6); on claims under your own policy, accept or deny within 15 working days after proof of loss (§ 146.7).

A first-party claim is one under your own policy, such as PIP or uninsured motorist coverage. A third-party claim is one against the at-fault driver's insurer. Some of these clocks, including the Texas rules and the NAIC model's 21-day decision rule, cover only first-party claims.

The settled share is a lower bound. Many cases closed as voluntary dismissals also end after a private deal; counting those, up to 69.5% may have settled.

Paid car accident claims against the federal government point the same way: 2,424 were settled after a lawsuit was filed, while 62 were paid after a court judgment.

• Federal vehicles: present the claim to the agency within two years. If the agency does not decide within six months, you may treat that as a denial and sue (28 U.S.C. § 2675(a)). After a written denial, you have six months to file suit (28 U.S.C. § 2401(b)).
• New York City and other New York public bodies: serve a notice of claim within ninety days (GML § 50-e), wait at least thirty days before suing, and sue within one year and ninety days (GML § 50-i). After a settled lawsuit, a city has ninety days to pay once it receives the release and stipulation (CPLR 5003-a(b)).
• California public entities: present an injury claim within six months (Gov. Code § 911.2). The board has 45 days to act, or the claim is treated as rejected (Gov. Code § 912.4).

The New York City figure covers paid car accident injury claims, measured from the day the claim was filed until it was resolved.