The Tax Benefits of Financing a Car


When it comes to buying a car, financing is a popular option that allows individuals to spread out the cost of the purchase over time. While there are several advantages to financing a car, one aspect that is often overlooked is the potential tax benefits. In this article, we will explore the tax advantages of financing a car and how they can help you save money. Whether you are purchasing a vehicle for personal or business use, understanding these benefits can make a significant difference in your overall financial planning.

Deductible Interest Expenses

One of the primary tax benefits of financing a car is the ability to deduct the interest expenses related to the loan. The interest paid on a car loan can be claimed as an itemized deduction on your annual tax return. This deduction, however, is subject to certain limitations.

In order to qualify for the deduction, the car must be used for business-related purposes. If you use the vehicle for both personal and business purposes, you can only deduct the portion of the interest that is allocable to your business use. This means that you will need to keep track of your mileage and record the percentage of business use to calculate the deductible portion accurately.

Additionally, the IRS has put certain limits on the amount of interest that can be deducted. As of the current tax year, you can deduct the interest expenses on up to $750,000 of qualified residence loans, which includes car loans. This limit applies to both single individuals and married couples filing jointly. Keep in mind that if you exceed this limit, the excess interest will not be deductible.

Section 179 Expense Deduction

For businesses that purchase vehicles for commercial use, the Section 179 expense deduction is another valuable tax benefit. Under this provision, businesses can deduct the full cost of qualifying vehicles in the year they are placed in service, rather than depreciating the cost over several years.

Currently, the maximum amount a business can deduct under Section 179 is $1,050,000, with a spending cap of $2,620,000. This means that if the total cost of the qualifying vehicles purchased during the tax year exceeds $2,620,000, the deduction will be reduced accordingly.

It is important to note that there are specific guidelines for qualifying vehicles to be eligible for the Section 179 deduction. The vehicle must have a gross vehicle weight rating (GVWR) above 6,000 pounds, and it must be used for business purposes at least 50% of the time. SUVs and trucks often meet these requirements and can thus qualify for the deduction.

Depreciation Deduction

Alongside the Section 179 expense deduction, businesses can also take advantage of the depreciation deduction for vehicles used in their operations. Depreciation allows businesses to recover the cost of the vehicle over time, reflecting the wear and tear that the asset experiences.

The IRS provides specific guidelines for the depreciation of business vehicles, including different methods and tables to calculate the depreciation expense. In general, depreciation is calculated based on the vehicle's cost, recovery period, and the depreciation method employed.

It is important to consider that different vehicles may have different recovery periods for depreciation purposes. Passenger automobiles, for example, have a recovery period of five years, while trucks, vans, and SUVs with a GVWR exceeding 6,000 pounds have a recovery period of six years.

Sales Tax Deduction

One additional tax benefit to financing a car is the ability to deduct the sales tax paid on the vehicle purchase. This deduction can be particularly beneficial to individuals residing in states with high sales tax rates.

The sales tax deduction can be claimed as an itemized deduction on Schedule A of your federal tax return. However, it is important to note that you cannot deduct the entire cost of the vehicle's sales tax. The deduction is limited to either the amount of sales tax you actually paid or the amount you would have paid if you chose to deduct the state and local sales taxes instead of the state income taxes on your tax return.

To claim the sales tax deduction, you will need to keep all relevant documentation, such as receipts or invoices, that show the sales tax paid on the vehicle purchase. It is also worth mentioning that this deduction may not be available in states that do not impose a sales tax.


Financing a car can offer significant tax benefits, whether you are an individual or a business owner. By taking advantage of deductible interest expenses, the Section 179 expense deduction, depreciation deductions, and the sales tax deduction, you can minimize your tax liability and reap the rewards of purchasing a new vehicle.

It is important to remember that tax laws are subject to change, so it is advisable to consult with a tax professional or accountant for the most up-to-date information and guidance regarding your specific situation. By understanding and implementing these tax strategies, you can make the most of your car financing experience and make smart financial decisions.

20 October 2023
Written by John Roche