For a lot of self-employed people, a car is one of the biggest hidden costs of doing business, and one of the most under-claimed deductions on their return. Part of the confusion is that vehicle expenses come with more moving pieces than almost any other deduction: two calculation methods, a locked-in choice that can follow you for years, and a long list of "it depends" scenarios depending on whether you own, lease, drive one car or three, or use a vehicle for more than one purpose.
This post walks through how the deduction actually works, and then through the specific situations that come up most for freelancers and independent contractors.
The two methods, and why your first-year choice matters more than you'd think
Just like the home office deduction, vehicle expenses can be calculated one of two ways.
The standard mileage rate is the simpler option: you track your business miles and multiply by the IRS rate, which is 76 cents per mile for the second half of 2026 (the rate is set annually, and occasionally adjusted mid-year). This single rate is meant to cover gas, maintenance, insurance, registration, and depreciation all at once. It's a bundled figure, not just a fuel reimbursement. On top of the per-mile rate, you can separately deduct business-related parking fees and tolls; those aren't baked into the rate.
The actual expense method has you track and deduct the real cost of operating the vehicle: gas, insurance, repairs, registration, lease payments or depreciation etc. and then apply your business-use percentage (based on business miles divided by total miles driven) to the total.
Here's the part that surprises people: the method you choose in the first year you use a vehicle for business has lasting consequences. If you choose the standard mileage rate in year one, you can switch to actual expenses in a later year if you want to. But if you start with actual expenses and claim depreciation on the vehicle, you're generally locked out of the standard mileage rate for that vehicle for good. Once depreciation has been claimed under the actual method, the standard rate (which has its own built-in depreciation component) is no longer available for that car. This is exactly the kind of decision worth making deliberately in year one rather than defaulting into it.
Now, the scenarios:
"I use my car for both business and personal driving"
This is the norm, not the exception, and it's completely fine You just need to track and deduct only the business-use portion. Whichever method you use, this comes down to a mileage log: dates, destinations, business purpose, and miles driven for each trip. At year-end, your business miles divided by total miles driven gives you your business-use percentage, which applies to the actual expense method directly, or simply becomes the mileage figure you multiply by the standard rate.
What doesn't count as business mileage: your regular commute between home and a fixed place of work. That's treated as a personal expense no matter how directly it relates to your income, with the notable exception discussed below for a qualifying home office.
"My home office is my main workplace. Does that change my commute?"
Yes, and it's one of the more valuable things to understand if you work from home. If your home office qualifies as your principal place of business, trips from home to client meetings, job sites, or other business destinations are generally treated as business mileage, not commuting — because you're not commuting to work, you're traveling from your business location to another one. Freelancers who work from home but regularly drive to see clients sometimes underclaim mileage simply because "driving from the house" still feels like a commute out of habit.
"I lease my vehicle instead of owning it"
Leased vehicles can use either method, but there's a specific rule to know: if you choose the standard mileage rate in the first year of a lease, you must stick with the standard mileage rate for the entire remaining lease term. No switching to actual expenses partway through. If you use actual expenses for a leased vehicle instead, you deduct your business-use percentage of the lease payments (with a possible adjustment called an "inclusion amount" for higher-value leased vehicles, which reduces the deduction slightly) rather than depreciation, since you don't own the car.
"I financed the car and I'm still making loan payments"
Loan payments themselves aren't directly deductible. What's deductible is the business-use percentage of interest on the loan (if you use actual expenses) and depreciation of the vehicle's cost, not the payments themselves. The standard mileage rate sidesteps this distinction entirely, since it's a flat per-mile figure regardless of how you financed the vehicle.
"I use more than one vehicle for my business"
You're allowed to use the standard mileage rate across more than one vehicle, including alternating between two personal vehicles for business trips, as long as you're not operating five or more vehicles at the same time for business use. Once you're running a fleet of five or more, the standard mileage rate is off the table and actual expenses become mandatory. For most freelancers alternating between, say, a car and a truck, this limit isn't a practical concern, but it's worth knowing if your business is scaling toward a small fleet.
"I drive for rideshare, delivery, or a similar platform alongside my other freelance work"
Platform driving (rideshare, food delivery, and similar) is one of the clearest business-mileage situations, since the vehicle use is directly tied to earning income. The same two-method choice applies, and because platform drivers often rack up high mileage, it's worth running the numbers both ways The actual expense method can sometimes outperform the standard rate for a heavily-used vehicle with high fuel and maintenance costs, even though the standard method is simpler to track. One nuance specific to platform work: time spent logged into an app waiting for a request, without a specific business trip underway, is treated differently by different practitioners, and platform-provided mileage summaries don't always match what the IRS expects from your own log — it's worth keeping your own records rather than relying solely on the app's report.
"I bought a truck or SUV for my business"
Heavier vehicles get materially different tax treatment than a standard passenger car. Vehicles with a gross vehicle weight rating (GVWR) over 6,000 pounds (like many full-size SUVs, pickup trucks, and vans) are not subject to the same "luxury auto" depreciation caps that limit how much of a car's cost you can deduct each year. This means a heavy vehicle used predominantly for business can sometimes qualify for a much larger first-year deduction under Section 179 or bonus depreciation than a typical sedan would. This only applies if you use the actual expense method (Section 179 and depreciation aren't relevant under the standard mileage rate), and the vehicle generally needs to be used more than 50% for business to qualify. If you're in the market for a work vehicle and weight and business-use percentage are close calls, that's worth a conversation before you sign anything. The tax treatment can meaningfully affect which vehicle makes more financial sense.
"My spouse or a family member also uses the vehicle"
Mixed household use doesn't disqualify the vehicle from a business deduction, but it does mean your mileage log needs to clearly separate your business trips from anyone else's use of the car, personal or otherwise. If a vehicle is used by more than one person for a mix of business and personal purposes, the business-use percentage still has to reflect only your actual business mileage, not the household's combined driving.
"I sold or traded in a vehicle I'd been depreciating"
If you used the actual expense method and claimed depreciation on a vehicle, selling or trading it in can trigger a taxable gain or a deductible loss, depending on the vehicle's adjusted basis versus what you received for it. This is a detail that's easy to overlook in the moment of a trade-in, since it feels like a purely personal transaction. If the vehicle carried business depreciation, the sale has a tax consequence worth calculating rather than assuming away. This is one more reason the standard mileage rate, which sidesteps depreciation and its recapture entirely, appeals to a lot of freelancers who value simplicity over maximizing every dollar.
"I only started using my vehicle for business partway through the year"
Similar to a home office put into service mid-year, your vehicle deduction under either method only covers the period the car was actually used for business. There's no special proration formula here beyond simply tracking mileage or expenses from the date business use began; the mileage log itself naturally reflects the shorter period.
What ties every scenario together
Across every situation above, two things stay constant: the deduction only covers the business-use share of a vehicle that also serves personal purposes, and a contemporaneous mileage log is what actually substantiates the deduction if it's ever questioned. "Contemporaneous" doesn't mean elaborate. It could be a running note in your phone, a mileage-tracking app, or a simple spreadsheet updated regularly is enough, as long as it's built as you go rather than reconstructed from memory at tax time.
The other constant is that the method decision is easiest to get right in the first year a vehicle goes into business use, before depreciation choices lock in the path you're on. If you're about to start using a new vehicle for your business, or you're not sure which method you're even currently using, that's worth a quick conversation with us before your next filing rather than after.
