How to Track Business Mileage for Tax Deductions

If you drive for business - client meetings, supply runs, job sites, networking events - your vehicle is one of the most valuable tax deductions available to you. For many freelancers and self-employed professionals, mileage can easily add up to $5,000 or more in annual deductions.

But the IRS has specific rules about what counts as business mileage, how you need to document it, and what happens if your records fall short. Miss the details, and you could lose the deduction entirely in an audit.

This guide covers everything you need to know about tracking business mileage in 2026 - from IRS rates and rules to common mistakes and the best way to stay organized year-round.

2025 IRS Standard Mileage Rates

The IRS sets standard mileage rates each year. Here are the current rates for 2025 (used when filing your 2025 return in 2026):

| Purpose | Rate per Mile | |---|---| | Business | 70 cents | | Medical / Moving (military only) | 21 cents | | Charitable | 14 cents |

The business rate of 70 cents per mile is designed to cover all your vehicle operating costs in one simple calculation - gas, oil, tires, maintenance, insurance, registration, and depreciation. If you drive 10,000 business miles in a year, that is a $7,000 deduction.

Standard Mileage Rate vs. Actual Expenses

You have two options for calculating your vehicle deduction:

Standard Mileage Rate: Multiply your business miles by the IRS rate (70 cents for 2025). Simple, minimal recordkeeping beyond your mileage log. This is what most freelancers use.

Actual Expense Method: Track every vehicle-related cost - gas, insurance, repairs, tires, registration, loan interest, and depreciation - then multiply the total by your business-use percentage.

Which one wins? It depends on your situation. If you drive a newer or expensive vehicle with high costs, actual expenses might yield a bigger deduction. If you drive an older, fuel-efficient car, the standard rate often comes out ahead. The best approach is to run both calculations at year-end and pick the larger number.

Important restrictions:

• If you choose the standard mileage rate, you must use it in the first year the vehicle is placed in service for business. You can switch to actual expenses in later years.
• If you lease your vehicle and choose the standard rate, you must use it for the entire lease period.
• You cannot use the standard rate if you operate five or more vehicles simultaneously (fleet use).

What Counts as Business Mileage

Not every trip in your car qualifies. The IRS draws a clear line between business driving and personal driving, and getting this wrong is one of the most common audit triggers.

Deductible Business Mileage

• Driving from your office (or home office) to a client meeting
• Traveling between two work locations during the day
• Trips to the post office, bank, or supply store for business purposes
• Driving to a networking event, conference, or professional development seminar
• Travel to a temporary work location (expected to last less than one year)
• Delivering products or supplies to customers

Not Deductible - Personal and Commuting Miles

• Your daily commute. Driving from home to your regular place of business is personal, not business mileage. This is true even if you take business calls during the drive.
• Personal errands. Stopping at the grocery store on your way home from a client does not make the grocery stop deductible.
• Mixed trips without separation. If a trip combines personal and business purposes, only the business portion is deductible. You need to track the split.

The Home Office Exception (This Is Huge)

Here is where it gets interesting for freelancers. If you have a qualifying home office - a space used regularly and exclusively for business - the IRS treats your home as your principal place of business.

That means every trip from your home office to a client, supplier, or business location counts as business mileage. Without a home office, those same trips could be classified as non-deductible commuting.

Example: You work from home and drive to meet a client 15 miles away. With a qualifying home office, that is 30 miles of deductible business driving (round trip). Without one, it could be considered a commute.

This single rule can add thousands of deductible miles per year. If you work from home regularly, make sure your home office meets the IRS requirements for the regular and exclusive use test.

IRS Documentation Requirements

The IRS does not just want to know how many miles you drove. They want proof - and they want it recorded close to the time of each trip. Here is exactly what you need to document:

For each trip, record:

• Date of the trip
• Destination (where you drove and the address or location name)
• Business purpose (why you made the trip - client meeting, supply pickup, etc.)
• Miles driven (odometer readings or GPS-based tracking)

For the full year, you also need:

• Total miles driven for the year (all purposes)
• Total business miles driven
• Your business-use percentage (business miles divided by total miles)
• Date the vehicle was placed in service for business

The "contemporaneous" rule: The IRS strongly prefers records made at or near the time of each trip. A mileage log you reconstruct from memory in April while doing your taxes is far weaker than one recorded in real time throughout the year.

Pro tip: The easiest way to stay compliant is to log your trips the same day you drive them. Even a quick note on your phone with the date, destination, and purpose is better than trying to reconstruct months of driving later.

Common Mileage Tracking Mistakes

These are the errors that cost freelancers deductions - or worse, trigger audit problems:

Claiming 100% Business Use

Unless your vehicle is used exclusively for business (which is rare for sole proprietors), claiming 100% business use is a red flag. The IRS knows that most self-employed people also use their car for personal driving. Be honest about your business-use percentage. A realistic 60-75% business use is far more defensible than a suspicious 100%.

Reconstructed Mileage Logs

Creating your mileage log at the end of the year based on estimates and calendar entries is risky. The IRS calls these "reconstructed records" and they carry much less weight than contemporaneous logs. If you are ever audited, the examiner will look for signs that your log was created after the fact - and if it was, your entire vehicle deduction could be disallowed.

Counting Commuting Miles

This is the most common mistake. Your regular commute is never deductible, even if you are self-employed. The only exception is if you have a qualifying home office, which converts your home into a business location and makes subsequent trips to other business locations deductible.

Forgetting to Track Total Miles

To calculate your business-use percentage, you need your total miles for the year - not just your business miles. Record your odometer reading on January 1st and December 31st every year. Without this number, you cannot accurately calculate your deduction.

Mixing Standard Rate and Actual Expenses Improperly

You cannot claim the standard mileage rate and also deduct actual expenses like gas and repairs. It is one or the other. The standard rate already includes those costs. The only expenses you can add on top of the standard rate are parking fees and tolls.

How to Organize Vehicle Expenses in RightOffs

If you are tracking your business expenses with RightOffs, vehicle-related costs fit naturally into the "Vehicle & Transportation" category.

What goes in Vehicle & Transportation:

• Gas and fuel (if using actual expense method)
• Parking fees and tolls (deductible with either method)
• Car washes for a business vehicle
• Repairs and maintenance (actual expense method only)
• Registration and licensing fees (actual expense method only)

When a vehicle-related transaction comes in from your connected bank account, classify it under "Vehicle & Transportation." RightOffs will remember that merchant classification, so future transactions from the same gas station or parking garage are automatically categorized - no manual work needed.

For the mileage deduction itself, most freelancers track miles separately (using a mileage log or app) and add a manual transaction in RightOffs at year-end for the total standard mileage deduction. This keeps your P&L report clean and CPA-ready.

Pro tip: Even if you use the standard mileage rate, track your actual vehicle expenses in RightOffs under "Vehicle & Transportation." At year-end, compare both methods and use whichever gives you the larger deduction. Having both numbers ready saves time and money.

Vehicle Depreciation Limits (Brief Overview)

If you use the actual expense method, depreciation is part of your deduction. But the IRS caps how much depreciation you can claim each year on passenger vehicles:

2025 depreciation limits for passenger vehicles:

• Year 1: $12,400 (or $20,400 with bonus depreciation)
• Year 2: $19,800
• Year 3: $11,900
• Year 4 and beyond: $7,160 per year

These limits apply to cars, SUVs under 6,000 pounds GVWR, and trucks. Heavier vehicles (over 6,000 pounds GVWR) may qualify for larger Section 179 deductions - this is one reason some business owners choose larger SUVs and trucks.

If depreciation calculations sound complex, that is because they are. This is one area where the standard mileage rate shines - it rolls depreciation into the per-mile rate, so you do not have to deal with these limits at all.

State-Level Considerations

While the IRS standard mileage rate applies federally, some states have their own rules that can affect your vehicle deduction:

• States with no income tax (Texas, Florida, Wyoming, etc.) - The federal deduction still reduces your self-employment tax, but there is no state tax benefit.
• California - Conforms to federal mileage rules but has additional requirements for certain vehicle types.
• New York - Generally follows federal rules, but New York City has unique considerations for commercial vehicle use.
• States that require separate mileage logs - A few states require their own documentation beyond federal requirements.

Check your state's tax authority website or ask your CPA about any state-specific mileage rules that apply to your situation.

Your End-of-Year Mileage Checklist

Before you file, make sure you have covered all the bases:

• Record your December 31st odometer reading so you can calculate total miles for the year
• Total your business miles from your mileage log
• Calculate your business-use percentage (business miles divided by total miles)
• Run both deduction methods - standard rate vs. actual expenses - and pick the higher number
• Verify your mileage log has date, destination, purpose, and miles for each trip
• Save parking and toll receipts - these are deductible on top of the standard mileage rate
• Review your "Vehicle & Transportation" category in RightOffs to make sure all expenses are captured and correctly classified
• Keep your records for at least 3 years (the IRS statute of limitations for most returns)

Start Tracking Today, Not at Tax Time

The biggest mistake freelancers make with mileage is waiting until the end of the year to worry about it. By then, you have months of unrecorded trips, no odometer readings, and a vague sense that you "drove a lot for work."

The fix is simple: start logging every business trip as it happens. Whether you use a dedicated mileage app, a notebook in your glove compartment, or a note on your phone - the key is consistency.

And for everything else - gas, parking, tolls, repairs, and all your other business expenses - RightOffs keeps it organized automatically. Connect your bank accounts, classify your merchants once, and let the system handle the rest. When tax season arrives, your Vehicle & Transportation expenses are already categorized, totaled, and ready for your CPA.

Every mile you do not track is money you are giving away. Start today.