An affidavit of insurance is a sworn, legally binding statement in which someone with personal knowledge of a policy confirms that the coverage exists, names the insurer and policy number, and spells out the limits, dates, and terms. It carries the same weight as testimony under oath, which is why courts, lenders, government agencies, and contracting parties ask for one when a routine insurance card or certificate won’t do. Lying on it is perjury.
What Goes Into One
An affidavit of insurance isn’t a fill-in-the-blank form. Whoever reads it has to be able to confirm exactly what coverage exists, who holds it, and when it applies. At a minimum, it includes:
- The affiant’s full legal name, address, and contact information. That’s you, the person swearing the document is true.
- The insurance company’s name, the policy number, and the dates coverage runs from and to.
- A description of each coverage type (liability, collision, comprehensive, property, professional liability, and so on), the dollar limits, the deductibles, and any endorsements or exclusions that change what the policy actually covers.
- Either a notary’s seal and signature, or a written declaration under penalty of perjury if the jurisdiction accepts unsworn statements.
That last point catches people out. Federal law lets an unsworn written declaration carry the same legal force as a notarized affidavit, as long as the signer states that the contents are true and correct under penalty of perjury and adds a date and signature.1Office of the Law Revision Counsel. 28 USC 1746 – Unsworn Declarations Under Penalty of Perjury Whether the notarized or unsworn version is acceptable depends on the requesting party and local rules. If you’re unsure, get it notarized. No one rejects an affidavit for being too formal.
You Have to Actually Know What You’re Swearing To
The person signing must have direct, personal knowledge of the policy’s terms. Under the Federal Rules of Evidence, a witness can only testify to matters they personally know about.2Justia Law. Federal Rules of Evidence Rule 602 – Need for Personal Knowledge Courts have thrown out affidavits where the signer’s only basis was “I reviewed the file.” If you’re signing for a company, be ready to explain your role and involvement with the policy, not just your title. This is where most challenges to insurance affidavits succeed.
How It Differs From a Certificate of Insurance
These two documents get confused constantly. A certificate of insurance is a summary that your insurer or agent produces to show a third party coverage exists. It’s informational. It describes the policy but creates no legal obligation, and the recipient can’t enforce the policy based on the certificate.
An affidavit of insurance is a sworn legal statement. Someone puts their name to it and accepts criminal exposure if the information is false. It shows up when the stakes are higher than a routine business exchange: court proceedings, government filings, and situations where the requesting party needs enforceable assurance rather than a summary. If a vendor asks for “proof of insurance,” they almost certainly want a certificate. If a court, government agency, or lender asks for a sworn statement about your coverage, that’s the affidavit.
When You’ll Be Asked for One
Vehicle Registration and After an Accident
Every state requires drivers to carry minimum liability insurance, and many require proof at registration. A standard insurance card or electronic verification is usually enough, but some states demand a sworn statement of coverage after a triggering event: a lapse in coverage, an at-fault accident, or a traffic stop where you couldn’t produce proof. Failing to provide what’s required can result in registration denial, fines, and suspension of your driving privileges. The specifics vary by state.
Real Estate Closings
Lenders won’t fund a mortgage without confirmation that the property is covered by an active hazard insurance policy. Most require a declarations page or insurance binder, plus proof the first year’s premium is paid, before closing can proceed. A policy that starts even one day after closing can delay the deal because coverage isn’t in place when the loan funds. If you later let coverage lapse, the lender can purchase force-placed insurance on your behalf, which is almost always more expensive and covers less than a policy you’d buy yourself.
Contractors and Licensed Professionals
Industries with real liability exposure routinely require sworn proof of insurance before work starts. Contractors typically have to verify general liability and workers’ compensation coverage before stepping onto a job site. Physicians, attorneys, and other licensed professionals may need to confirm malpractice coverage to satisfy licensing boards or hospital credentialing committees. A contractor without the documentation gets barred from the project. A professional without it risks disciplinary action, up to license suspension.
Interstate Motor Carriers
If you operate commercial vehicles across state lines, the Federal Motor Carrier Safety Administration requires proof of financial responsibility before you can receive operating authority. The FMCSA won’t grant registration until the insurance documentation is on file.3Federal Motor Carrier Safety Administration. Insurance Filing Requirements Your insurer files forms like the BMC-91 or BMC-91X on your behalf to certify that your liability coverage meets federal minimums.4Federal Motor Carrier Safety Administration. What Forms Are Required for Insurance and Where Can I Find Them Minimum coverage runs from $750,000 for non-hazardous freight to $5,000,000 for the most dangerous cargo and larger passenger vehicles, depending on what you carry and vehicle size.5eCFR. 49 CFR Part 387 – Minimum Levels of Financial Responsibility for Motor Carriers Your registration stays active only as long as you maintain those levels.6Office of the Law Revision Counsel. 49 USC 13906 – Required Insurance
Federal Government Contracts
Contractors working on government installations must notify the contracting officer in writing that required insurance is in place before starting work. The policies must include a cancellation endorsement: the insurer can’t cancel or make adverse changes without giving at least 30 days’ written notice to the contracting officer, or a longer period if state law requires it.7Acquisition.GOV. FAR 52.228-5 Insurance – Work on a Government Installation Prime contractors also have to keep copies of every subcontractor’s proof of insurance and produce them on request. Those obligations flow down to subs.
How to Complete One
Pull your current policy documents first. You need the policy number, provider name, effective dates, coverage types, dollar limits, deductibles, and any endorsements or exclusions. Stale information is the most common reason affidavits get rejected, so verify everything against your most recent declarations page rather than working from memory or an old printout.
Draft the affidavit with all required elements: your identification, the policy details, and a clear description of each coverage type and its limits. Many courts and agencies publish template forms; using the requesting party’s preferred format saves back-and-forth. If no template exists, a real estate attorney or insurance professional can draft one that meets your jurisdiction’s requirements.
Sign in front of a notary public, who will verify your identity and confirm you’re signing voluntarily before affixing the seal. If the requesting party accepts an unsworn declaration under penalty of perjury instead, you can skip the notary, but include the specific perjury declaration language along with your signature and the date.1Office of the Law Revision Counsel. 28 USC 1746 – Unsworn Declarations Under Penalty of Perjury Keep a copy either way.
What Happens If It’s False
Because an affidavit is a sworn statement, false information in it is perjury. A declaration made under penalty of perjury carries the same consequences as testimony given under oath in court.8Legal Information Institute. Declaration Under Penalty of Perjury Federal perjury is a felony. When the false statement is made to a federal agency, such as filing fraudulent insurance documentation with the FMCSA or on a government contract, the penalty can reach five years in prison.9Office of the Law Revision Counsel. 18 USC 1001 – Statements or Entries Generally
Criminal exposure isn’t the only risk. If another party relies on a false affidavit and suffers losses because coverage didn’t actually exist or didn’t match what was sworn to, the affiant faces civil lawsuits for damages. Litigation costs alone can be devastating before any judgment is entered.
The policy itself is also at stake. Insurers can void or rescind a policy when the policyholder makes material misrepresentations. If your insurer discovers you swore to terms that don’t match reality, you could lose the policy entirely, leaving you uninsured and personally liable for claims that would otherwise have been covered. For a motor carrier, losing insurance means losing operating authority. In a real estate transaction, it can unwind the deal. Accuracy matters more on this document than on almost any other piece of paperwork you’ll sign.