A car insurance claim affidavit is a sworn statement you sign under penalty of perjury, telling the insurance company what happened in the accident or incident you're reporting
The affidavit is not a form you fill out casually. It's a legal document. When you sign it, you're swearing that everything in it is true, and lying on it can result in criminal charges for perjury. Insurance companies use affidavits to create an official record of your account before they pay out, especially when the claim involves a dispute, a hit-and-run, theft, or damage no one witnessed.
Most straightforward claims—a fender-bender with another driver and both insurance companies present, or damage you report when ready with photos—won't require an affidavit. But if the insurer has questions about what happened, or if you're the only source of information about the loss, they will ask you to sign one before they settle.
Key Takeaways
- An affidavit is a sworn statement you sign in front of a notary or witness, confirming the facts of your claim under penalty of perjury.
- Insurance companies typically request affidavits for unwitnessed damage, hit-and-run incidents, theft, or claims where the insurer questions your account.
- You should never sign an affidavit unless you are certain about every detail you're stating, because false statements can lead to criminal charges and claim denial.
- If the claim involves significant money, injury, or a dispute with the other driver, consider having a lawyer review the affidavit before you sign.
- The affidavit becomes part of your claim file and may be used in court if the claim is later disputed or denied.
When an insurance company will ask for an affidavit
Your insurer requests an affidavit when they need your sworn account because the facts are unclear, unverified, or contested. Common situations include a hit-and-run where you have no other driver's information, theft where no police report exists yet, or comprehensive damage (hail, vandalism, falling objects) that happened when you weren't present and can't be corroborated by witnesses.
An affidavit is also standard when you're claiming a total loss and the insurer needs to confirm the vehicle's condition before the incident, or when there's a delay between the incident and your report—say you discover damage weeks later and the insurer wants to know why you didn't report it sooner. If you're disputing the other driver's version of events and there are no independent witnesses, the insurer may ask both of you to swear to your accounts in writing.
Some insurers use affidavits routinely for claims above a certain dollar amount, even if the facts seem straightforward. This is a business practice to create a legal record that protects them if the claim is later challenged.
What information goes into an affidavit
The affidavit will ask you to state the date, time, and location of the incident; the weather and road conditions; what you were doing and where you were going; exactly what happened in your own words; any injuries or damage you observed; whether police were called and what report number was issued; the names and contact information of any witnesses; and whether you took photos or video.
You'll also be asked to confirm details about your vehicle—make, model, year, license plate, and VIN—and whether it was parked, moving, or in some other state when the damage occurred. If another vehicle or person was involved, you'll describe them as accurately as you can remember: the other driver's name and contact details, their vehicle's description, their insurance information if you have it, and what they said or did at the scene.
The affidavit will include a statement that you are signing under penalty of perjury, meaning you understand that false statements can result in criminal prosecution. You'll sign it in front of a notary public or, in some cases, a witness designated by the insurance company.
How to prepare before signing an affidavit
Before you sign, gather every document related to the claim: the police report if one was filed, photos or video you took, medical records if you were injured, repair estimates, receipts for any temporary repairs, text messages or emails with the other driver, and notes you wrote down when ready after the incident. Review these materials and make sure your memory of events matches what you documented at the time.
Read the affidavit carefully, word by word. Do not sign anything you're unsure about. If the form contains blanks you don't know how to fill—such as the exact time of the incident when you only remember it was afternoon—tell the insurance company you don't recall that detail rather than guessing. An affidavit that contains even one false statement, even if you didn't intend it to be false, can be used to deny your entire claim and potentially to prosecute you.
If the claim involves significant money, injury, or a serious dispute with the other driver, consider having a lawyer review the affidavit before you sign. A lawyer can flag language that might be interpreted against you, suggest clarifications, and advise you on whether signing is in your interest.
The notarization process
Most affidavits must be notarized to be legally valid. This means you sign the document in front of a notary public, who verifies your identity, watches you sign, and then adds their own signature and seal. The notary is not checking whether what you're saying is true—they're only confirming that you are who you say you are and that you signed the document knowingly.
Your insurance company will tell you where to have the affidavit notarized. Some insurers have a notary on staff or will arrange for one to meet you. Others will send you the affidavit and expect you to find a notary yourself. Notaries are available at banks, law offices, UPS stores, and some government offices. The cost is usually $5 to $15 per signature.
If you cannot travel to a notary, some states now allow remote notarization, where you sign the document on video while the notary watches. Ask your insurance company whether this option is available for your claim.
What happens after you sign
Once you return the signed, notarized affidavit to your insurance company, it becomes part of your official claim file. The adjuster will review it alongside any other evidence—police reports, photos, witness statements, repair estimates—and use it to make a coverage decision.
If the affidavit supports your claim, the insurer will move toward settlement. If the affidavit contradicts other evidence or raises new questions, the adjuster may ask for clarification or request additional documentation. In rare cases, if the insurer believes you've made false statements, they may deny the claim and report the matter to law enforcement.
If your claim is denied and you dispute the denial, the affidavit will be part of any appeal or legal proceeding. This is why accuracy and honesty matter: the document becomes a permanent record of your account.
Red flags and when to involve a lawyer
Do not sign an affidavit if you're being pressured to do so quickly, if the insurer is asking you to state things you don't actually remember, or if the form contains language you don't understand. These are signs to slow down and seek information.
You should also consider consulting a lawyer if the claim is large, if you're injured and pursuing a personal injury claim in addition to property damage, if the other driver is disputing your account, or if you've already had a claim denied by this insurer. A lawyer can review the affidavit, advise you on what to include and exclude, and represent you if the claim becomes adversarial.
If the insurance company is asking you to sign an affidavit that contradicts what you told them earlier, or if they're asking you to swear to facts you're uncertain about, that's a signal to ask questions and possibly get legal review before proceeding.
Frequently Asked Questions
Can I change my affidavit after I sign it?
No. Once a notarized affidavit is signed and sealed, it becomes a legal document. If you realize you made a mistake or left out important information, you can submit a supplemental affidavit or a written correction, but you cannot alter the original. This is why reviewing it carefully before signing is critical.
What if I don't remember exactly what happened?
State what you do remember and be honest about what you don't. It's better to write "I do not recall the exact time" than to guess. The insurance company would rather have incomplete information than false information, and an affidavit full of "I don't recall" statements is still legally valid.
Can the other driver see my affidavit?
Not automatically. Your affidavit is part of your claim file with your insurance company. However, if the claim becomes a lawsuit, both sides typically exchange documents through a process called discovery, and the affidavit may be shared. If you're concerned about privacy, ask your insurance company what information will be disclosed.
What if I'm asked to sign an affidavit but I think the claim is fraudulent?
Do not sign it. If you're being asked to lie or to swear to something you know is false, you're being asked to commit perjury. Refuse, and if you're being pressured, contact your state's insurance commissioner or a lawyer. Insurance fraud is a crime and can result in felony charges.
Do I need a lawyer to sign an affidavit?
No, but having one review it first is a good idea if the claim is significant or disputed. A lawyer can make sure the language protects you and that you're not inadvertently admitting fault or waiving rights. Many lawyers offer a brief review for a modest fee.