General information, not legal advice. Talk to a licensed attorney in your state.

Independent guide · not a government website

Glossary

Adjusted basis

For tax purposes, generally what you paid for property, plus improvements, minus certain deductions such as depreciation. It is used to work out whether money for property is taxable.

Quick answer

Adjusted basis is a tax term. It starts with what you paid for property, then goes up for improvements and down for certain items, such as depreciation deductions. The IRS uses it to decide whether money you receive for property, such as a damaged car, counts as income.

In a car accident claim#

Many crash settlements include money for the car itself: repairs, a total-loss payment or a drop in value. Under IRS Publication 4345, a settlement for loss in value of property is not taxable up to your adjusted basis in the property, which the settlement reduces; any amount above basis is income. So the tax question for the car part of a claim is how the payment compares with your adjusted basis in the car.

Money for injuries follows different rules. Our guide to whether settlements are taxable explains how the IRS treats each part of a settlement, and the guide to property damage and diminished value covers the car claim itself. Because the numbers depend on your records, many people check with a tax professional before filing.

Example#

Questions people ask

Is adjusted basis the same as what I paid for my car?

Not always. Basis usually starts with the purchase price, then changes over time: improvements raise it, and items such as depreciation deductions or earlier insurance payments for damage lower it.

Do I have to report a car damage settlement on my taxes?

According to IRS Publication 4345, a property settlement below your adjusted basis is not taxable, and only an amount above basis is income. A tax professional can check how this applies to your records.

Sources

  1. Cornell Law School, Legal Information Institute, Wex: adjusted basis — general definition
  2. IRS, Publication 4345, Settlements—Taxability — property settlements and adjusted basis

Last reviewed October 29, 2026 by the Accident Claim Facts editorial team. Found an error? Tell us.

Keep reading

  1. GlossaryGlossaryShort, plain-English definitions of the legal and insurance terms that come up after a crash, each with an example, related terms and the sources behind it.Reviewed
  2. Money and compensationTaxes on settlementsUnder federal law, damages for physical injuries are generally not taxable income, but punitive damages, interest and some other parts of a settlement can be…Reviewed
  3. Money and compensationProperty damageHow to get your car repaired or replaced after a crash, what happens when it is totaled, when a rental car or diminished value is paid, and how long you have…Reviewed
  4. GlossaryArbitrationA private process in which a neutral arbitrator hears both sides and decides the dispute. Whether the decision is binding depends on the agreement or the…Reviewed
  5. GlossaryBlood alcohol concentrationThe amount of alcohol in a person's blood, measured in grams per deciliter. A breath or blood test after a crash records it.Reviewed
  6. GlossaryBodily injury liabilityThe part of a driver's auto policy that pays for injuries they cause to other people.Reviewed

    Try “deadline”, “Texas” or “demand letter”. Press Enter to open a result.