Anyone who tracks miles for a small business, a side gig, or unreimbursed volunteer driving needs to watch the calendar as closely as the odometer this year. The IRS has split its 2026 standard mileage rate in two, and driving logged after June 30 is worth more on a tax return than driving logged earlier in the year. For retirees running a small consulting practice, delivering for a rideshare or delivery app, or doing significant volunteer driving, using the wrong half-year rate can mean under- or over-claiming a real deduction.
Two Rates for One Tax Year
The IRS set the 2026 business standard mileage rate at 72.5 cents per mile late last year, a modest increase over 2025. Then, in a mid-year move it has used only rarely, the agency raised the rate again to 76 cents per mile, effective for miles driven from July 1 through December 31, 2026. The agency cited rising fuel costs as the reason for the unusual adjustment. The last time the IRS made a similar midyear change was in 2022, when gas prices spiked sharply enough that the standard rate jumped from 58.5 cents to 62.5 cents starting in July of that year.
Anyone claiming the standard mileage rate for 2026 business driving will need to apply 72.5 cents to miles driven in the first half of the year and 76 cents to miles driven from July onward — not a single blended rate for the full year. That means mileage logs need a clear date stamp for every trip, not just a running annual total, to correctly split the deduction between the two periods.
The rate has climbed steadily in most years since the 2022 spike: 65.5 cents for all of 2023, 67 cents for 2024, and 70 cents for 2025, before this year’s split between 72.5 and 76 cents. Measured from the 62.5-cent second half of 2022 to the current 76-cent rate, the deduction has risen more than 21 percent in roughly four years, a pace that outstrips general inflation over the same period and reflects how heavily the IRS’s annual rate-setting formula weighs vehicle operating costs like fuel, maintenance, and insurance.
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Medical, Moving and Charitable Mileage Also Shifted
The business rate is not the only one that moved. The mileage rate for medical purposes, which covers driving to doctor’s appointments, pharmacies, and other medical care that qualifies as a deductible expense, also rose midyear, from 20.5 cents to 23.5 cents per mile starting July 1. That same 23.5-cent figure applies to moving-expense mileage for active-duty military members and certain intelligence-community personnel relocating under orders, one of the few groups still allowed to deduct moving costs after changes made in earlier tax law. The charitable mileage rate, by contrast, did not move; it is fixed directly by statute at 14 cents per mile and has not changed in years, since adjusting it requires an act of Congress rather than an IRS rate-setting decision.
Who Actually Benefits From the Higher Rate
The standard mileage rate matters most to people who drive for business purposes without an employer reimbursing them at a comparable rate — self-employed retirees, small landlords driving to maintain rental property, and gig workers chief among them. A retiree who logs 4,000 business miles in the second half of 2026 gets $3,040 in deductible mileage at 76 cents a mile, compared with $2,900 at the old 72.5-cent rate — a modest but real difference that adds up across a full tax year of driving. Employees who are reimbursed by an employer at or above the IRS rate generally see no tax benefit either way, since reimbursement up to the standard rate is typically tax-free already.
Taxpayers always retain the option to deduct actual vehicle expenses — gas, maintenance, depreciation, insurance — instead of using the standard mileage rate, provided they keep the underlying receipts and calculate the business-use percentage correctly. For most people with modest business mileage, the standard rate remains simpler to track and defend if a return is ever questioned.
Not everyone is free to choose between the two methods, however. A taxpayer who has already claimed accelerated depreciation or a Section 179 deduction on a vehicle generally cannot switch to the standard mileage rate for that vehicle afterward, and someone operating five or more vehicles at the same time for business use is barred from using the standard rate at all and must track actual expenses instead. A retiree with a single vehicle used occasionally for a small consulting practice or gig work is squarely in the group the standard rate is built for; someone running a small fleet, such as a handful of delivery or rental vehicles, is not. The choice between the two methods is also generally locked in for the life of a given vehicle used for business: switching from actual expenses to the standard rate, or the reverse, after the first year a vehicle is placed in business service carries its own restrictions, which is one more reason tax preparers typically recommend deciding on a method in the first year of business use rather than changing course later.
Why the Timing Trips People Up
Mid-year rate changes are uncommon enough that many taxpayers and even some tax preparers miss them, defaulting to whichever rate they used earlier in the year for all twelve months. Because the change was announced only in July, drivers who were not paying close attention to IRS updates may not realize their second-half mileage is worth more until they sit down to file. Keeping a simple mileage log with dates, rather than a single year-end mileage count, is the easiest way to make sure the correct rate gets applied to the correct months when it comes time to file a 2026 return.
This article was produced with the assistance of AI and reviewed by The Financial Wire editorial team.
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Warren Cohen is a finance writer based in Phoenix, Arizona, covering personal finance topics including credit, banking, and beginner investing. He earned his degree in business administration from Arizona State University and began his career working in consumer finance, where he gained direct experience with lending and credit systems. He now writes for personal finance websites and fintech platforms, focusing on clear, practical content that helps readers make informed financial decisions.
