A self-employed real estate agent can deduct the business portion of vehicle costs on Schedule C, either by multiplying qualifying business miles by the IRS standard rate or by writing off the business-use percentage of actual expenses. For 2026, the standard mileage rate is 72.5 cents per mile, so 20,000 business miles produces a $14,500 deduction before any other expenses.1Internal Revenue Service. IRS Sets 2026 Business Standard Mileage Rate at 72.5 Cents Per Mile, Up 2.5 Cents Because that amount reduces both income tax and the 15.3% self-employment tax, the mileage deduction is often the single biggest write-off on an agent’s return. The rules that decide whether you get to keep it are about which miles qualify, which calculation method you elect, and whether your records will hold up.
Which Miles Actually Qualify
The IRS treats the drive between your home and a regular place of work as a personal commute, and commutes are never deductible. Where you go from there depends on whether you have a qualifying home office.
If your home office is your principal place of business, every drive from that office to a showing, a listing appointment, the brokerage, or a closing counts as a business trip.2Internal Revenue Service. Publication 463 (2025), Travel, Gift, and Car Expenses The space has to be used exclusively and regularly for business. A dedicated room where you handle your administrative work and have no other fixed office qualifies; a kitchen table you sometimes work from does not.3Internal Revenue Service. Publication 587 (2025), Business Use of Your Home
Without a qualifying home office, the drive from home to your first business stop of the day is a commute, and so is the trip from the last stop back home. The miles in between are deductible: from one showing to another, from a listing appointment to a title company, from the brokerage to a training seminar.2Internal Revenue Service. Publication 463 (2025), Travel, Gift, and Car Expenses
There is a useful exception for temporary work sites. If you have a regular work location and also travel to a temporary one in the same business, the round trip between home and the temporary site is deductible. A site counts as temporary if the work is realistically expected to last a year or less.2Internal Revenue Service. Publication 463 (2025), Travel, Gift, and Car Expenses An agent working out of a brokerage but also driving to a short-term development sales office for a few months can deduct that home-to-site drive.
Business parking and tolls are deductible on top of whichever method you use. They are not built into the standard mileage rate.4Internal Revenue Service. Topic No. 510, Business Use of Car
Standard Rate or Actual Expenses
You have two calculation methods, and the better one depends on what you drive and how much record-keeping you can stomach.
The Standard Mileage Rate
Multiply your qualified business miles by 72.5 cents for 2026.1Internal Revenue Service. IRS Sets 2026 Business Standard Mileage Rate at 72.5 Cents Per Mile, Up 2.5 Cents The rate covers gas, insurance, maintenance, depreciation, and general wear, so you cannot deduct those items separately. Parking and tolls still come on top.
The appeal is simplicity. Agents driving fuel-efficient or newer cars often come out ahead because the rate is generous relative to their actual per-mile costs.
There are conditions. You have to choose the standard rate in the first year the vehicle is available for business use. You cannot use it if you operate five or more vehicles at the same time, if you previously claimed Section 179 or accelerated depreciation on the vehicle, or if you claimed actual expenses on a leased vehicle after 1997.2Internal Revenue Service. Publication 463 (2025), Travel, Gift, and Car Expenses Start with the standard rate and you keep the option to switch to actual expenses later.
One quiet detail: the standard rate includes a depreciation component of 35 cents per mile for 2026, and that amount reduces your vehicle’s tax basis each year.5Internal Revenue Service. Notice 2026-10, 2026 Standard Mileage Rates When you sell or trade the car, a lower basis can produce a taxable gain.
The Actual Expense Method
Actual expenses lets you deduct the business-use percentage of every operating cost: fuel, oil changes, tires, insurance, repairs, registration, loan interest, and lease payments. The business percentage is business miles divided by total miles. Drive 25,000 miles total with 20,000 for business and your percentage is 80%.
You can also claim depreciation on the vehicle itself, which produces large deductions in early years for more expensive vehicles. The trade-off is paperwork: receipts for every fuel stop, repair, and premium, plus an accurate annual mileage total.
Choose actual expenses in the first year and you are generally locked into that method for the life of the vehicle. Run the comparison before you file the first return.
Depreciation Caps and the Heavy-Vehicle Exception
Under the actual expense method, passenger vehicles (generally 6,000 pounds gross vehicle weight or less) are subject to annual depreciation caps under Section 280F. For a passenger vehicle placed in service in 2026:6Internal Revenue Service. Revenue Procedure 2026-15
- First year with bonus depreciation: $20,300 maximum
- First year without bonus depreciation: $12,300 maximum
The One, Big, Beautiful Bill restored 100% bonus depreciation for qualifying property acquired and placed in service after January 19, 2025, so most agents buying a new car in 2026 qualify for the higher cap. Even $20,300 is well below the sticker price of most cars, so depreciation on a standard passenger vehicle typically stretches across several years.
Vehicles with a gross vehicle weight rating above 6,000 pounds escape the 280F caps. Many full-size SUVs, large pickups, and cargo vans clear the threshold. The Section 179 deduction in 2026 is capped at $32,000 for SUVs designed primarily to carry passengers, and remaining cost can be depreciated under normal rules. With 100% bonus depreciation available, an agent can often write off the business-use portion of the purchase price in the first year. That is where actual expenses can dwarf the standard rate for agents who drive a heavy SUV to showings.
Records That Survive an Audit
The IRS requires contemporaneous records, created at or near the time of each trip. Logs reconstructed the night before a tax appointment are routinely rejected in audits, and the penalty for losing that argument is total disallowance.
Every business trip needs four things:
- Date of the trip
- Starting point and destination
- Miles driven
- A specific business purpose, such as “showed 123 Oak St. to the Johnsons” or “picked up lockbox at brokerage”
“Business meeting” is not specific enough. Auditors want to see who, where, and why. A GPS-based mileage app captures this automatically, and the IRS accepts electronic records that contain the required elements.7eCFR. 26 CFR 1.274-5 – Substantiation Requirements
If you use actual expenses, add receipts for every vehicle-related cost, the original purchase documentation to support depreciation, and a total annual mileage figure to prove your business-use percentage. Keep the records at least three years after filing. The IRS has six years to audit if you under-reported income by more than 25%, so longer retention is safer.
Claiming 100% business use on a personal vehicle is one of the most reliable audit triggers. If records don’t hold up, the deduction is disallowed and the IRS typically adds a 20% accuracy-related penalty on top of the additional tax.8Internal Revenue Service. Accuracy-Related Penalty A disallowed deduction that costs you $4,000 in tax adds another $800 in penalties plus interest.
How to Report It
Report business income and expenses on Schedule C (Form 1040).9Internal Revenue Service. About Schedule C (Form 1040), Profit or Loss From Business (Sole Proprietorship) The vehicle deduction goes on the “Car and truck expenses” line. Schedule C has a separate section asking for total miles, business miles, and whether you have written evidence to support the claim. Complete it even if you use the standard rate.10Internal Revenue Service. 2025 Schedule C (Form 1040) Profit or Loss From Business
Agents using actual expenses and claiming depreciation also file Form 4562. Section 179 expensing and bonus depreciation are calculated there, and the result flows onto Schedule C.10Internal Revenue Service. 2025 Schedule C (Form 1040) Profit or Loss From Business
Schedule C’s net profit feeds two places on your Form 1040: your adjusted gross income for income tax, and Schedule SE for self-employment tax. Because the mileage deduction lowers Schedule C profit, it cuts both taxes. For an agent in the 22% bracket, every $1,000 of vehicle deduction saves roughly $373 in combined tax.