What the IRS Says

The IRS standard mileage rate for 2024 is 67 cents per mile for business driving. This covers gas, depreciation, insurance, and maintenance in one simple deduction. You can alternatively use the actual expense method if that produces a larger deduction.

How to Structure This Properly

Getting the deduction right is not just about whether it is allowed — it is about how you set it up.

Establish Business Use

Every trip must have a documented business purpose. Client meetings, site visits, supply runs, and business errands qualify. Commuting from home to your regular workplace does not.

Track Usage and Documentation

Use a mileage tracking app (MileIQ, Everlance) or a manual log. Record date, destination, business purpose, and miles for every trip.

Choose the Right Structure

Multiply total business miles by 67 cents at year-end. Deduct on Schedule C. You cannot use both the standard mileage rate and actual expenses in the same year.

Avoid Common Mistakes

Do not include commuting miles. Do not estimate mileage without a log -- the IRS requires contemporaneous records.

Optimize for Maximum Benefit

Compare standard mileage vs. actual expenses each year. For high-mileage drivers, the standard rate is often simpler. For expensive vehicles, actual expenses may produce a larger deduction.

When structured correctly, this deduction can significantly reduce your taxable income.

Real Examples

Here is how this deduction typically works in real situations:

Self-Employed / Freelancer

A freelance consultant drives 18,000 business miles in 2024 for client meetings and site visits.

Result: 18,000 miles x $0.67 = $12,060 deduction. Simple, clean, and defensible.

Audit Risk: Low -- with mileage log.

Business Owner (LLC / S-Corp)

An S-Corp owner reimburses themselves for 22,000 business miles through an accountable plan.

Result: 22,000 x $0.67 = $14,740 reimbursement. Tax-free to the employee, deductible to the corporation.

Audit Risk: Low -- accountable plan reimbursement is clean.

Mixed Use -- High Risk

A business owner estimates 20,000 business miles with no log, including commuting and personal trips.

Result: IRS disallows the deduction. Contemporaneous records are required -- estimates are not accepted.

Audit Risk: Very high -- no documentation.

Key Takeaway: The difference between a valid deduction and a denied one usually comes down to documentation, usage percentage, and proper structuring. The same expense can be fully deductible, partially deductible, or not deductible at all — depending on how it is handled.