TurboTax / Tax Calculators & Tips / All Tax Guides / Self-Employment Taxes / Maximizing Tax Deductions for the Business Use of Your Car

Updated for Tax Year 2016

OVERVIEW

### The Actual Expenses method

There are two methods of calculating the business use of your car. You’ll want to calculate your vehicle expenses each way and then choose the method that yields the largest deduction for you.

The first method is called Actual Expenses. It is based on the expenses you actually incur in the operation of your vehicle. It includes things like:

• gas purchases
• oil changes
• tire purchases
• car washes
• insurance
• and even vehicle depreciation

However, you can only claim the percentage of expenses that apply to the business use of your vehicle. To compute this, you must know how many miles you drove for business purposes and how much you drove for personal reasons. Lyft provides this important information on your Driver Dashboard as well as on your year-end “Yearly Stats” sheet. You can find it under the heading “Driver mode miles.” Add these miles to any other business miles to get your total business miles.

To find the percentage of your car’s use for business, divide your total business miles by the total number of miles you drove for the year (business + personal).

• For example, if your Yearly Stats show that you drove 5,000 driver mode miles and your odometer indicates you drove 10,000 miles for the year, divide 5,000 by 10,000.
• The result is 0.5, or 50%. This is the percentage of your vehicle’s business use.

You then multiply the total of your actual expenses by this percentage to arrive at your Actual Expenses deduction.

• For example, if your actual expenses were \$9,500, you would multiply that figure by 50 percent.
• Your deduction would be \$4,750 (\$9,500 x .50 = \$4,750).

The deduction is large, because the actual expenses are large. In the example above, the actual expenses include:

• \$1,000 gas
• \$1,500 insurance
• \$6,000 lease payments
• \$400 repairs
• \$100 oil
• \$500 car washes

### Standard Mileage method

To compute the deduction for business use of your car using Standard Mileage method, simply multiply your business miles by the amount per mile allotted by the IRS.

• For tax year 2016, that amount is 54 cents per mile. In the example above, the deduction turns out to be \$2,700 (5,000 miles x \$.54 = \$2,700).

In theory, both methods of calculating the expense of business use of your car should produce roughly the same result. In the example above, however, the driver’s large lease payments and low mileage result in a higher deduction using Actual Expenses than using Standard Mileage—\$4,750 compared to \$2,700. You are entitled to the larger deduction.

If a driver’s mileage were higher, the Standard Mileage deduction might yield a larger deduction, like in the example below.

The Lyft driver logged 40,000 miles in 2016, and 30,000 of those miles were for business. When you divide 30,000 by 40,000, the result is 0.75, or 75%. This was the percentage of this driver’s vehicle business use. The driver not only drove more miles, but also had larger actual expenses:

• \$4,000 gas
• \$3,160 depreciation
• \$1,500 insurance
• \$1,200 repairs
• \$190 oil
• \$500 tires
• \$750 car washes

This driver’s Actual Expenses total \$11,300 and since this driver used the car 75% of the time for business, the Actual Expenses deduction is \$8,475 (\$11,300 x .75 = \$8,475). That’s a lot.

However, when you multiply the driver’s 30,000 miles by the IRS’s mileage rate of 54 cents per mile, the result is a whopping \$16,200 (30,000 x .54 = \$16,200). In this example, the driver is able to deduct \$7,725 more by using the Standard Mileage method than by using the Actual Expenses method (\$16,200 compared to \$8,475).

As these examples demonstrate, the two methods can yield vastly different results. Be sure to keep all your receipts so you can calculate the deduction both ways and then choose the method that benefits you the most.

Also, if you want to us the standard mileage rate, you must choose it in the first year you use the car for business. In later years you can choose to use the standard mileage rate or switch to actual expenses.

### Just a reminder

Common expenses for a ridesharing business include:

• a phone
• a wireless plan
• passenger refreshments
• parking fees
• and tolls

The chart below shows the typical business expenses for a Lyft driver.

As with mileage, you can only deduct the expenses related to your business. If you use an item in both your personal life and your business, you must calculate the percentage of use for each.

To make it easier to track their expenses, some Lyft drivers purchase a phone for business use only. That way they can deduct 100% of the expenses associated with that phone and not worry about calculating percentages of use. But be sure to save all bills, receipts, and other documentation related to your business expenses. The IRS can disallow any deductions that aren’t fully documented.

Remember, with TurboTax Self Employed, we’ll ask you simple questions and fill out all the right forms so you can maximize your tax deductions and minimize your tax bill.

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The above article is intended to provide generalized financial information designed to educate a broad segment of the public; it does not give personalized tax, investment, legal, or other business and professional advice. Before taking any action, you should always seek the assistance of a professional who knows your particular situation for advice on taxes, your investments, the law, or any other business and professional matters that affect you and/or your business.

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