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Commuting Miles vs. Business Miles: What Counts?

By FlatMile ·

General US federal recordkeeping information, not individual tax advice. Tax treatment depends on your circumstances; consult a qualified adviser for your claim.

At a glance

Driving between home and your main or regular place of work is generally personal commuting, even if the trip is long or you make work calls along the way. Driving from one workplace to another during the workday is generally different. Other trips involving a temporary work location or a qualifying home office have specific rules, so the answer depends on your work locations and circumstances.

These examples explain general US federal rules in IRS Publication 463. Employees should also check employer reimbursement policy; reimbursable and deductible are separate questions.

Regular commute: usually personal

The IRS treats travel between home and a main or regular work location as nondeductible commuting. The distance does not change that treatment. Carrying tools or taking a business call during the commute does not, by itself, turn the trip into business travel.

For example, imagine a self-employed electrician who works most days from the same shop and drives from home to that shop. That regular trip is generally commuting. A separate drive from the shop to a customer’s site during the day is travel between work locations and generally has a business purpose. The electrician should record the customer trip separately rather than count the whole day’s driving as business mileage.

Common work trips that may be business mileage

Publication 463 describes several situations that can differ from a regular commute:

  • Between two work locations: If you work at two places in one day, transportation between them is generally deductible business travel.
  • Temporary work location: If you have one or more regular work locations away from home and travel to a temporary location in the same trade or business, the round trip may qualify. Whether the location is temporary depends on expected duration and facts; the IRS generally treats work expected to last one year or less as temporary unless circumstances indicate otherwise.
  • No regular workplace: If you have no regular place of work but ordinarily work in your home metropolitan area, travel from home to a temporary work site outside that area may qualify; a site within the metropolitan area generally remains commuting.
  • Home office: If your home qualifies as your principal place of business under IRS rules, travel from home to another work location may be treated differently than a trip from a personal residence. The home-office requirements matter; simply answering emails at home is not enough to establish the tax treatment.

These rules are fact-sensitive. “I drove for work” is not a complete test. Identify the regular workplace, any temporary sites, and whether a home office meets the applicable requirements. If your route does not fit one of the ordinary examples, ask a tax professional before claiming the miles.

A fictional trip example

Suppose a freelance designer works from a qualifying home office and drives to a client meeting, then to a print shop for proofs, then home. The client and print-shop trips may be business travel depending on the facts and the home office’s status. The same route could be treated differently for someone whose regular office is elsewhere. A mileage tracker can show where a vehicle went; it cannot decide whether the home office qualifies or whether a site is temporary.

Keep a separate entry for each work trip. Record the date, destination, business purpose, and miles, then preserve enough information to explain why the location was work-related. The IRS encourages recording the details at or near the time of the trip; a weekly log may be timely if it accounts for the week’s use. See Publication 463’s recordkeeping guidance.

A practical way to classify a trip

Before marking a drive as business, ask:

  1. Was the destination a regular workplace, temporary work site, client, supplier, or another work location?
  2. Was this travel between work locations, or from home to a regular workplace?
  3. If the trip began or ended at home, does a specific home-office or temporary-work-location rule apply to my facts?
  4. Can I explain the business purpose and support the date, destination, and miles with a timely log and related records?

Keep commuting and personal drives out of the business-mile total unless a specific rule supports their treatment. For the rate applicable to eligible miles in each part of 2026, use the 2026 IRS mileage-rate guide; a mileage rate does not make a personal commute deductible.

FlatMile logs drives automatically and accepts manual entries for free. A subscription or eligible trial unlocks captured-drive details, business/personal classification, and PDF and CSV exports. Review each trip and supply its business reason yourself. See the sample report for the export layout. The sample uses fictional data and is not IRS-approved tax advice.

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