Deducting car insurance on your taxes: business use, mileage rate

Car insurance premiums are deductible only for the part of a vehicle's use that is business, and only if you are self-employed or otherwise eligible, and only if you are not using the standard mileage rate. The IRS lets you deduct vehicle costs one of two ways. Under the standard mileage rate, insurance is already folded into the per-mile figure and cannot be claimed again. Under the actual expense method, the business share of your premium is one line among several. Most employees cannot deduct unreimbursed car costs at all. This article explains the mechanics in general terms; it is not tax advice, and a tax professional or the IRS can answer questions about your return.

The two methods and where insurance sits

The IRS describes the choice in Publication 463, Travel, Gift, and Car Expenses (the 2025 edition, for 2025 returns). If you use the standard mileage rate for a year, you cannot deduct your actual car expenses for that year, and the publication lists what is excluded: depreciation, lease payments, maintenance and repairs, gasoline, oil, insurance and vehicle registration fees. The rate is meant to cover all of them. Parking fees and tolls for business trips are the exception, and they can be added on top.

Under the actual expense method you add up what the car cost to operate and deduct the business share. The IRS's Topic no. 510, Business use of car lists the costs that go into this method: gas, oil, repairs, tires, insurance, registration fees, licenses, and depreciation or lease payments, each attributable to the business portion of use. Insurance is therefore a line item on one side and invisible on the other.

The rate itself changes. For 2025 it was 70 cents per mile. For 2026 the IRS has set different rates for the two halves of the year: its standard mileage rates page, last updated in July 2026, shows 72.5 cents per mile for January 1 through June 30 and 76 cents per mile for July 1 through December 31. Because the rate moves, any comparison between the two methods has to use the right figure for the year in question.

What the IRS says about choosing a method

Publication 463 sets rules that make the first year important:

• To use the standard mileage rate for a car you own, you must choose it in the first year the car is available for use in your business. In later years you may choose either method.
• You cannot revoke the choice of the standard rate, but you can switch from it to actual expenses in a later year.
• You cannot use the standard rate if you operate five or more cars at the same time, or if you have claimed depreciation using a method other than straight line, used the Modified Accelerated Cost Recovery System, claimed a section 179 deduction or claimed the special depreciation allowance on the car.
• A car used for hire, such as a taxi, can still use the standard rate unless one of those other limits applies.

Topic 510 adds a practical suggestion: if you qualify for both methods, figure the deduction both ways before choosing. For a driver who starts a delivery or rideshare job in a car already owned, the first-year rule is the one to understand before the first mile is driven, because the choice carries forward.

The business-use percentage

Insurance does not divide itself between personal and business driving, so you divide it. Publication 463 says that when a car is used for both, expenses must be split, and that you can split them by miles driven for each purpose. Its example: a contractor drives 20,000 miles, 12,000 of them for business, and can claim 60% of the cost of operating the car as a business expense (12,000 divided by 20,000).

The same rule appears in the IRS's retired Publication 535 on business expenses. The IRS says it discontinued that publication after the 2022 revision and maps each topic to other resources, so the last Publication 535 (2022) is the best statement of the insurance rule. It lists car and other vehicle insurance covering vehicles used in your business among deductible insurance, adds that if you use a vehicle partly for personal use and partly for business you deduct only the part of the premium that applies to the business use, and says that if you use the standard mileage rate to figure car expenses you cannot deduct any car insurance premiums.

What counts as a business mile

Not every mile in a work-related car is a business mile. The IRS treats commuting as personal. Publication 463 says the cost of driving between home and your main or regular place of work is a commuting expense, and that you cannot deduct commuting no matter how far the trip is, even if you work during it or take calls on the way. Trips to see clients, to pick up supplies, or between two workplaces can be business miles. For app-based drivers, the miles with a passenger or an order are the clear cases. The status of the miles driven while waiting for a request depends on facts and on how a tax professional reads the rules, so this is a question to raise with one.

A worked example

These numbers are hypothetical, chosen to show the arithmetic and not to suggest typical costs. Say a self-employed delivery driver drove 20,000 miles in 2025, of which 12,000 were business miles, a 60% business share.

Under the standard mileage rate, the driver would deduct 12,000 miles at 70 cents, or $8,400, with no separate insurance line. In this made-up case the standard rate produces the larger deduction. If the numbers were different, say a heavily insured vehicle with high repair bills, the actual method could win. This is why the IRS suggests computing both. Depreciation also has its own limits and rules that are not covered here, and that complexity is a reason many people stay with the standard rate once they are in it.

Employees: why most cannot deduct the premium

If you work for an employer and drive your own car, the answer is usually no. The IRS's Topic 510 says most employees cannot deduct unreimbursed car expenses, with exceptions for members of the Armed Forces reserves, qualified performing artists and fee-basis state or local government officials, and for people who are self-employed. Publication 463 explains the reason: the cost of using your car as an employee, under either method, was claimed as a miscellaneous itemized deduction, and those deductions are suspended for tax years beginning after 2017. The 2025 edition of the publication still states the suspension, and the IRS's rules can change, so read the current edition for the year you are filing.

Two points come up often:

• Reimbursement. If your employer reimburses you for mileage under a plan that meets the IRS's accountable plan rules, the reimbursement is generally not wages, and there is nothing to deduct. Chapter 6 of Publication 463 sets out those rules.
• Worker classification. Whether a driver is an employee or an independent contractor controls which side of this line applies. The label an app uses is not the test. A worker who is not sure should ask a tax professional or review the IRS's guidance on worker classification.

Self-employed and gig drivers

For sole proprietors, Publication 463 says income and expenses are reported on Schedule C, with car expenses reported on the car and truck line, along with information about the vehicle's use on Schedule C or on Form 4562. The mileage and use questions that appear there are why the records in the next section matter.

Insurance that matches the use

A premium is only worth deducting if the coverage works. A personal auto policy is priced for personal use. The Progressive explanation of vehicle use says that commuting, pleasure and commercial use are different categories, that using a car for work such as driving to a client may mean looking at commercial auto insurance, and that being honest about use helps avoid problems with claims and coverage. The Insurance Information Institute's guide to rental car insurance similarly notes that your own policy generally applies to a rental for recreation and not for business.

For rideshare drivers, coverage depends on which part of the work you are in. Uber's U.S. insurance page says, as of November 2026, that your personal policy applies when the app is off; that while you are online and waiting for a request, Uber's liability coverage is $50,000 per person, $100,000 per accident and $25,000 for property damage, with no collision or comprehensive coverage from Uber; and that while you are en route or on a trip, liability is at least $1,000,000, with repair coverage to actual cash value subject to a $2,500 deductible, available only if you carry comprehensive and collision on your personal policy. Coverage varies by state, and other platforms have their own terms. The tax consequence is that the comprehensive and collision premium you keep to qualify is part of the cost of driving for the platform, and so is any rideshare endorsement. How to allocate those amounts between personal and business use is a question for a tax professional; our articles on pricing a rideshare endorsement: what drives the cost and contingent collision coverage and the rideshare deductible explain the insurance side.

If you have a dedicated work vehicle used only for business, the percentage question is simpler, but the coverage question is not: such a vehicle may need a commercial policy, as the article on starting a one-person delivery business: when you need commercial auto explains. Under Publication 535's rule, premiums for insurance covering vehicles used in the business are deductible, subject to the personal-use split.

Records an audit will want

The IRS expects records made at or near the time, not a reconstruction. Publication 463 describes an adequate record as an account book, diary, log, statement of expense, trip sheet or similar record kept together with documentary evidence such as receipts, and says a record prepared on a computer counts. For car expenses, its table of required records includes the cost of the car and improvements, the date you started using it for business, the mileage for each business use, the total miles for the year, the date of use, the business destination and the business purpose.

If your records are incomplete, you can support the missing element with your own statement and other evidence; for the business purpose, circumstantial evidence can do, and the publication notes that the nature of delivery work and delivery invoices show when a car was used for business. It also allows you to keep an adequate record for part of the year and use it to prove business use for the whole year, if you can show that the sampled period is representative.

A practical checklist:

1. Record odometer readings on January 1 and December 31 so total miles are documented.
2. Log each business trip, or use an app that stores date, start and end points, miles and purpose.
3. Keep the declarations page for each policy term, with premium and the use class and mileage stated to the insurer.
4. Keep receipts for fuel, repairs, registration and the premium, even if you plan to use the standard rate, in case you switch methods.
5. Keep the records at least as long as the IRS says. Publication 463 says to keep records supporting a deduction for 3 years from the date you file the return, or longer if other rules apply.

One point is easy to miss. If you tell your insurer that a car is used for pleasure, with 6,000 annual miles, and then claim 18,000 business miles on your return, the two documents disagree. Consistency matters for both purposes. The article on working from home: how commute classification changes your rate covers how use classes work, and occupational accident insurance for gig drivers covers a separate cost gig drivers sometimes weigh.

Common questions

Can I deduct my whole premium if I use the standard mileage rate?

No. The IRS says that with the standard rate you cannot deduct insurance separately. The premium is treated as already included in the per-mile amount.

Does a rideshare endorsement change anything for taxes?

It changes the insurance cost, not the method rules. Under the actual expense method it is part of the cost of operating the car, and how to allocate it is a question for a tax professional. Under the standard rate it is not separately deductible.

What if my car is damaged or stolen?

That is a separate topic. Losses not covered by insurance may be deductible in limited cases, as Publication 463 mentions in the context of casualty and theft losses and Publication 547. Our article on the Can you deduct car damage on your taxes? The casualty loss rules covers the car-damage side.

Can I switch methods from year to year?

Often yes, but not freely. After the first year you can choose either, and you can switch from the standard rate to actual expenses. If you claimed depreciation methods or deductions that bar the standard rate, you generally cannot go back. Check the rules in the publication before switching.

Key takeaways

• With the standard mileage rate, insurance is built in and cannot be deducted separately; with actual expenses, only the business share of the premium counts.
• The business share is usually computed from miles, and commuting miles are personal.
• Most employees cannot deduct unreimbursed car costs under the rules in the 2025 IRS publication; reimbursement plans and self-employment are the main exceptions.
• A personal policy may not fit business use, so match the coverage to the work before worrying about the deduction.
• Keep a contemporaneous mileage log and your declarations pages, and make sure what you tell the insurer matches what you tell the IRS.