Can I buy a car under my LLC and write it off?

[VanJanelle]

Yes, you can deduct a car purchase through your LLC, but the write-off is strictly limited to the percentage of legitimate business use. Personal use, including regular commuting, is never deductible. The two primary methods are the Standard Mileage Rate (67 cents per mile in 2024) or the Actual Expense Method, which includes depreciation. For vehicles used over 50% for business and weighing over 6,000 lbs, accelerated deductions like Section 179 or bonus depreciation can significantly reduce taxable income in the first year.

The cornerstone of this deduction is documentation. The IRS requires contemporaneous records—a detailed mileage log noting the date, destination, purpose, and odometer readings for every business trip. For the actual expense method, you must keep every receipt for fuel, maintenance, insurance, and registration. Without this, the deduction will not withstand an audit.

Choosing between the Standard Mileage Rate and Actual Expenses is a critical decision. The standard rate is simpler, as you only track miles. The actual expense method requires meticulous record-keeping but can yield a larger deduction if the vehicle is expensive to operate or qualifies for large upfront depreciation.

For heavy vehicles like SUVs, trucks, or vans with a gross vehicle weight rating (GVWR) over 6,000 lbs, the tax benefits can be substantial. These vehicles may qualify for Section 179 expensing, allowing a deduction of up to $30,900 of the cost in the first year for 2024, or even 100% bonus depreciation if placed in service before 2027. This makes the financial case for a heavy vehicle used predominantly for business very strong.

Deduction Method	How It Works	Best For
Standard Mileage Rate	Multiply business miles by the IRS-set rate (e.g., $0.67/mile in 2024).	Those with simpler use, lower maintenance costs, or who prefer minimal record-keeping beyond a mileage log.
Actual Expenses	Deduct the business-use percentage of all operating costs plus depreciation.	High-value vehicles, heavy vehicles over 6,000 lbs, or those with high operating costs.
Section 179	Immediate expensing of up to $30,900 of the cost of a qualifying vehicle over 6,000 lbs.	Purchasers of new or used heavy SUVs, trucks, or vans used > 50% for business.
Bonus Depreciation	Allows for 100% first-year deduction of the business-use portion of a new or used vehicle's cost.	Qualifying vehicles placed in service before 2027, subject to phase-out rules.

It is crucial to understand the "listed property" rules. If business use falls below 50% in any year, you must recapture prior depreciation deductions and switch to a slower, straight-line method. The safest approach is to use the vehicle consistently for business and maintain impeccable records. For the most current rules and limits, consulting the IRS Publication 463 (Travel, Gift, and Car Expenses) is essential, as tax codes are subject to change.

[AliyahLee]

As a small business owner who bought a truck through my LLC last year, here’s my take. The write-off is real, but it’s not a free car. My accountant had me start a mileage log on day one—every trip to the hardware store, client site, or supplier gets logged. I use the actual expense method because my truck qualifies for that Section 179 deduction. It made a huge dent in my tax bill. The key is being honest about business use. I have a separate credit card for all gas and repairs, so keeping receipts is easy. It’s a powerful tool, but the paperwork is non-negotiable.

[StMiguel]

From a tax professional’s perspective, the question isn’t just can you, but should you, and how to do it correctly. The biggest pitfall I see is inadequate documentation. A client’s “good estimate” of 80% business use holds no weight during an IRS examination. You need a log. Furthermore, the choice between the standard rate and actual expenses isn’t permanent; you can switch methods under specific IRS rules (for example, you generally cannot use the standard mileage rate after using accelerated depreciation). My advice is to model both scenarios before filing. For a vehicle costing $75,000 used 90% for business, the first-year deduction could be over $67,000 with bonus depreciation, versus roughly $12,000 using just the standard mileage rate. That differential demands careful planning, not an afterthought.

[VanRyder]

Let’s simplify the core idea. Your LLC can buy the car. If you use it 100% for business trips (not driving to your main office), you could write off 100% of the costs. If you use it half for work and half for weekends, you can only write off 50%. The government gives you two math options: a flat rate per business mile, or add up all your real bills (gas, insurance, repairs) and take a percentage. The heavier the vehicle, the better the tax break options get. But they will ask for proof. Keep a notebook in your glove compartment and write down every work-related drive. No log, no deduction.

[RobertLynn]

I looked into this for my consulting LLC and decided against a major deduction like Section 179. Why? Because my business use fluctuates. One month I might be 90% on the road, the next it’s 30%. If you claim over 50% business use to qualify for the big first-year deductions and then drop below that later, the IRS requires you to recapture those benefits—meaning you pay back some of the tax savings. That’s a risk I wasn’t willing to take. I use the standard mileage rate. It’s less upfront savings, but it’s clean, simple, and audit-proof as long as my log is accurate. It aligns better with my variable income and usage. For someone with steady, high business mileage, the calculus is different, but for me, avoiding complexity and future liability was the smarter financial move.