Mileage Deduction for Realtors: How to Track and Maximize Your 2026 Car Expense Deduction

Mileage is the single largest tax deduction most realtors never fully capture. Not because it's complicated, but because they don't track it consistently. By January they're trying to reconstruct a year's worth of drives from memory — and the IRS will not accept that.

This guide covers everything: which drives qualify, how to build a log the IRS can't touch, how to compare the standard rate against actual expenses, and how much money is actually on the table. If you're a realtor, read this once and implement the system. You won't regret it.

1. The 2026 IRS Standard Mileage Rate

The IRS sets a standard mileage rate each year that accounts for the average cost of operating a vehicle — fuel, insurance, maintenance, depreciation. For 2026, the rates are:

Purpose	2026 Rate per Mile
Business driving	$0.70
Medical / moving (active military only)	$0.21
Charitable service	$0.14
Personal driving	Not deductible

The business rate applies to every qualifying business mile. It's straightforward math: miles × $0.70 = deduction. No receipts for gas or oil changes needed if you're using the standard rate.

2. Which Drives Qualify as Deductible Business Mileage for Realtors

The short rule: any drive with a direct business purpose qualifies. The drive has to be necessary for your work as a realtor — not personal, not speculative.

Qualifying drives

• Driving to show properties to active buyer clients
• Previewing listings before showing them to clients
• Hosting or attending open houses
• Listing appointments and seller consultations
• Driving to meet clients at properties or coffee shops for business discussions
• Visiting the title company, escrow officer, or closing attorney
• Trips to the county recorder, courthouse, or building permit office
• Broker meetings and caravan tours
• Picking up yard signs, lockboxes, or office supplies
• Photography appointments for your listings
• Driving to NAR, TAR, or local board meetings
• Continuing education classes required for license renewal
• Real estate conferences, networking events
• Home-to-office trips if your home is your principal place of business (see section 5)

Non-qualifying drives

• Commuting from home to a fixed brokerage office (if that's your principal place of business)
• Personal errands mixed into a business trip (only the business portion counts)
• Driving to look at a neighborhood out of personal curiosity
• Any personal trip that isn't directly tied to serving a client or running your business

The line is: business purpose that you could explain to an IRS auditor with a straight face. If you drove across town to pick up yard signs and then stopped at the grocery store on the way back, only the business miles count.

3. How to Build an IRS-Compliant Mileage Log

The IRS requires a contemporaneous mileage log. That word is doing a lot of work. It means you record the trip at or near the time it happens — not at year-end, not in March when you're filing. The Cohan rule (which lets taxpayers estimate some expenses) explicitly does not apply to vehicle mileage. Without a real-time log, the IRS can and will disallow the entire deduction.

Required fields per trip

1. Date — the specific date of the drive
2. Starting point — your location at the start of the trip
3. Destination — where you drove to
4. Business purpose — what you were doing ("showing property at 123 Main St to client Johnson," "open house prep at 456 Oak Ave," "title company closing meeting")
5. Miles driven — odometer readings or GPS-calculated distance

A spreadsheet works. A notebook works. A mileage tracking app is better because it logs the trip with GPS automatically — you just confirm the purpose. The important thing is that the record exists at the time of the drive, not reconstructed later.

How long to keep the log

The IRS can audit returns up to 3 years after filing. If they suspect a substantial understatement of income, that window extends to 6 years. Keep your mileage log for 6 years to be safe. Cloud storage is fine — you don't need the original paper.

What happens without a log

Best case: the IRS disallows the deduction and you pay the taxes you would have owed plus interest. Worst case: they add a 20% accuracy penalty on top. If you claimed 20,000 miles at $0.70, that's a $14,000 deduction. In the 22% bracket, that's $3,080 in taxes owed plus $616 penalty plus interest from the filing date. Keep the log.

4. Standard Mileage Rate vs. Actual Expenses: Which Saves More?

Realtors have two methods for deducting vehicle costs. You can only use one per vehicle per year, and whichever you choose must be applied consistently.

Method 1: Standard mileage rate

Multiply your total qualifying business miles by $0.70. That's your deduction. You don't track gas, oil changes, insurance, or repairs separately — the rate covers all of it. Simple, clean, defensible.

Method 2: Actual expenses

Track every dollar you spend on the vehicle: gas, insurance, registration, repairs, tires, car washes, loan interest, and depreciation. Then multiply the total by your business-use percentage (business miles ÷ total miles for the year). What you get is the deduction.

Factor	Standard Rate	Actual Expenses
Record-keeping	Miles only	All vehicle receipts + miles
Best for	Fuel-efficient car, lots of miles	Expensive car, high operating costs
Depreciation included?	Yes (built into rate)	Yes (separate calculation)
Flexibility	Must choose year 1	Can switch from standard → actual
Lease vs. own	Works for both	Works for both (different depreciation rules)

When actual expenses wins

If you drive a luxury vehicle with high insurance, significant loan interest, and expensive maintenance — and you use it heavily for business — actual expenses can produce a larger deduction. Run both calculations and pick the higher one, keeping in mind that if you've already used the standard rate for this vehicle in a prior year, you can switch to actual but can't switch back.

The practical answer for most realtors

The standard rate is almost always simpler and often produces an equal or better result. At $0.70/mile for a vehicle getting 30 mpg at $3.50/gallon, the gas cost alone is about $0.12/mile — the rate is covering $0.58/mile of non-gas costs. For most realtors with a reasonable vehicle, the standard rate wins or ties, with vastly less paperwork.

5. The Home Office Rule: When Your Commute Becomes Deductible

Here's a rule many realtors miss: if your home qualifies as your principal place of business, then driving from home to show a property, meet a client, or visit the title company is a deductible business trip — not a commute.

Your home qualifies as your principal place of business if:

• You use a specific area of your home regularly and exclusively for business (scheduling, email, paperwork, client calls)
• You don't have another fixed office that's your primary place of work
• The home office is where you do the administrative and management activities of your business

Most independent realtors working from home satisfy this test. The practical implication: every drive from home in connection with your real estate business is deductible. You don't have a non-deductible commute.

To claim the home office deduction alongside this, you'd file Form 8829. But even without the home office deduction, the "principal place of business" status alone makes all your home-originating business drives deductible.

6. How Much Can You Actually Save?

Let's run the numbers at several mileage levels for a realtor in the 22% federal tax bracket. Self-employment tax (15.3%) is also reduced because the mileage deduction reduces net self-employment income.

Annual Business Miles	Mileage Deduction	Federal Tax Saved (22%)	SE Tax Saved (~14.1%)	Total Savings
10,000 miles	$7,000	$1,540	$987	~$2,527
15,000 miles	$10,500	$2,310	$1,481	~$3,791
20,000 miles	$14,000	$3,080	$1,974	~$5,054
25,000 miles	$17,500	$3,850	$2,468	~$6,318
30,000 miles	$21,000	$4,620	$2,961	~$7,581

These are not theoretical numbers — they're the actual tax savings available to any realtor who drives for business and keeps the required mileage log. The variable isn't the tax code; it's whether you have the records.

7. Common Audit Triggers to Avoid

The IRS doesn't audit random returns. High mileage deductions on Schedule C are a known audit trigger — particularly when the claimed miles are a suspiciously round number, inconsistent with income, or appear to exceed what's plausible for the profession.

Red flags that attract scrutiny

• 100% business-use percentage on a vehicle. The IRS knows vehicles are also used personally. A realistic business-use percentage (75–90%) is more defensible than 100%.
• Mileage that doesn't match income. If you reported low commission income but claimed 40,000 business miles, an auditor will ask why.
• Round numbers. Exactly 20,000 miles logged is a flag. Real-world mileage logs produce odd numbers.
• No mileage log. If you claim the deduction but can't produce a log, the IRS disallows it. No negotiation.
• Claiming personal commutes as business miles. If you have a fixed office and are claiming every trip from home as business mileage, that's an audit waiting to happen.

What keeps you clean

A contemporaneous log with specific destinations, business purposes, and distances. The specificity is what makes it credible. "Client showing at 245 Ridgeview Dr, Austin, TX — buyers Smith" is defensible. "Client meeting" is not.

8. Step-by-Step: Setting Up Your Mileage Tracking System Today

1. Record your odometer reading today. You need a baseline. Write down the reading and date it. This establishes your starting point for the year.
2. Choose your tracking method. Spreadsheet, notebook, or a mileage app. Whatever you'll actually use consistently.
3. Log every business trip the day it happens. Date, start, destination, purpose, miles. Takes 30 seconds with an app, 60 seconds with a spreadsheet.
4. Record your odometer at year-end. Total miles − starting odometer = total miles driven. Business miles ÷ total miles = business-use percentage (needed if you ever switch to actual expenses).
5. Back up your log. Cloud storage. Email it to yourself monthly. If it lives only on your phone and the phone breaks, the log is gone.
6. Keep the log for 6 years. The audit window is 3 years standard, 6 years for substantial understatements.

That's the entire system. The realtors who capture every dollar of the mileage deduction aren't doing anything exotic — they're just logging trips consistently.

Frequently Asked Questions

Can I deduct mileage for driving to open houses I'm hosting?

Yes. Driving to an open house you're hosting as the listing agent is a deductible business trip. Log it the same as any other business drive: date, address, purpose ("open house at 789 Maple St — listing agent"), miles.

What if I use my car for both personal and business driving?

Only the business miles are deductible. You can use the same vehicle — just track your business miles separately. Your business-use percentage is business miles ÷ total annual miles. If you drove 18,000 total miles and 14,000 were business, your business-use percentage is 78%. Under the standard mileage method you just multiply the 14,000 business miles by $0.70.

Can I deduct mileage driving to look at potential listings or new neighborhoods?

If you're doing it to serve an active buyer client or prepare for a listing presentation, yes. If you're casually exploring without a specific client or business purpose, no. Keep your business purpose notes specific.

Do I need to report the personal-use portion of my car on my taxes?

For most self-employed realtors, no — you simply don't deduct the personal miles. If you're using the actual expense method, you multiply all vehicle expenses by the business-use percentage and only deduct that portion. The personal-use portion just isn't claimed.

Is it better to lease or own a vehicle as a realtor for tax purposes?

It depends on the vehicle value and how much you drive. Under the standard mileage rate, it doesn't matter — you just multiply miles by $0.70. Under actual expenses, owned vehicles get depreciation deductions (potentially large under Section 179); leased vehicles deduct the business-use portion of lease payments. Run both calculations with your tax preparer before deciding.

The core insight: the mileage deduction is substantial and it's available to every realtor who qualifies. The only requirement is the log. If you want a system that handles the tracking for you, ProvExpense is free to start. Log your first trip in two minutes.

Also worth reading: our complete guide to tax deductions for self-employed realtors and contractors covers every other Schedule C deduction category alongside mileage.