Documenting the Incident: What to Attach to Your Insurance Claim Form

Topics > Submit a Formal Claim Form

You have the claim form in your hands, or maybe you are staring at an online portal. Before you fill in a single field, understand this: the insurance company will decide your fate based on the documents you attach, not the words you write. A claim form without supporting evidence is just a wish. Here is exactly what you need to gather, organize, and submit alongside your formal claim.

Start with the most obvious but most frequently botched item: proof that the incident happened. If it was a car accident, that means the police report. Do not wait for the police to mail it to you. Go to the station, request a copy in person, or download it from the department’s online records system. If the police did not respond to the scene, you need your own sworn statement describing the time, date, location, weather conditions, and every detail you remember. Write it while the event is fresh. Sign it. Date it. Notarization is not always required, but it adds weight.

For property damage, such as a broken pipe or a fallen tree, take photographs before you clean anything up. Photograph the water on the floor, the crack in the wall, the angle of the tree, the hole in the roof. Then photograph the same area after you have made temporary repairs. You are allowed to mitigate further damage, but you must prove what the original damage looked like. A pile of debris does not tell the story; a series of time-stamped photos does.

Receipts matter more than you think. If the incident forced you to buy emergency supplies, board up a window, or rent a temporary apartment, keep every receipt. Insurance policies cover “reasonable” mitigation expenses. Without a paper trail, the adjuster will assume you spent nothing or spent too much. Attach a cover sheet listing each receipt with a brief note explaining why it was necessary. For example: “Receipt for plywood and nails to secure broken garage door on March 15.” Do not assume the adjuster will connect the dots.

Medical records are the backbone of any personal injury claim. Do not attach a note from your doctor that says “patient feels pain.” That is useless. Request a full medical report that includes objective findings: X-ray results, MRI interpretations, range-of-motion measurements, and a diagnosis with a specific ICD code. Also attach the treatment plan. The insurance company wants to see that you are following a doctor’s orders, not skipping appointments or self-diagnosing. If you have missed work, get a letter from your employer stating your lost wages and hours. Attach pay stubs from the three months before the incident to establish a baseline.

Do not forget the evidence that proves you owned the damaged property. If a stolen laptop was three years old, you need the receipt, the credit card statement, or the serial number from the manufacturer’s registration. If you bought the item used, a bill of sale or a photograph of the item in your home dated before the loss is acceptable. The adjuster will not take your word for it. They have heard every sob story. Prove ownership with a document.

Now consider the witness. If someone saw the accident or the damage, get a written statement from them. Do not simply write down what they said. Ask them to write it in their own handwriting, sign it, and include their phone number. Attach that statement. It is admissible and credible. If the witness will not write it, record a video or audio statement on your phone, then transcribe it and attach the transcript. The insurance company wants third-party verification, not just your version.

One more critical item: any correspondence you have already had with the insurance company or the other party. If you sent a demand letter, attach it. If the other driver left a note on your windshield, photograph that note and attach it. If you exchanged insurance information, attach that paper too. The claim form is part of a larger story. The adjuster needs to see the full timeline.

Organize your attachments in a logical order. Put the police report or incident report first. Then put the photographs. Then the medical records or property receipts. Then witness statements. Then any prior correspondence. Use a binder clip or a file folder. If you are submitting online, scan each document as a separate PDF file and label them clearly: “Police Report”, “Photo 1 – Damage to Bumper”, “Photo 2 – Leak in Basement”, “ER Visit Report – March 20”, “Lost Wage Statement – March 20 to April 5”. Do not combine everything into one massive scan. That makes the adjuster’s job harder, and a harder job often leads to a lower payout.

Finally, check the deadline. Most insurance policies require you to submit a formal claim within a specific number of days, often 30 days from the incident. That clock is ticking. If you do not have all the documents ready, submit the claim form on time anyway and write “supporting documents to follow” in the notes. Then send the documents as soon as you have them. But do not use that as an excuse to delay. The stronger your submission, the less room the adjuster has to deny or lowball your claim. Attach everything you would want to see if you were the one deciding who gets paid.

FAQ

Frequently Asked Questions

The calculation looks at your earnings history to establish a reliable average. Gather your pay records for a meaningful period before the injury (e.g., 6-12 months, or the year-to-date). Add up all your earnings—including regular pay, overtime, bonuses, and commissions—then divide by the time period to find your average weekly wage. This average rate is then multiplied by the number of work weeks you missed due to the injury.

A prompt check allows you to observe the person’s initial condition and statements before they have time to exaggerate or fabricate injuries. If someone claims a severe back injury but is seen walking, bending, and refusing assistance at the scene, your documented observations directly contradict a later exaggerated claim. Immediate assessment provides a baseline of facts that makes it much harder for a claimant to successfully invent or amplify injuries after the fact.

Record the exact date, time, and full location. Photograph all damage, injuries, and the overall scene from multiple angles. Get names and contact information for everyone involved and any witnesses. Note weather and road conditions. Write a brief, factual summary of what happened while it’s fresh. This comprehensive documentation creates an undeniable foundation for your claim.

Your claim will be handled through your own policy’s Uninsured/Underinsured Motorist (UM/UIM) coverage, if you have it. This is optional in some states but highly recommended. It covers your vehicle repairs and medical bills when the at-fault driver has no insurance or insufficient coverage. If you only have basic liability insurance, you likely cannot make a UM claim. In that case, you may need to use your collision coverage for repairs (subject to your deductible) or pursue the driver personally, which is often difficult.