The IRS Mileage Rate Went Up Mid-2026 — Are You Still Deducting the Old Number?
⚠️ Disclaimer
This article is for informational purposes only and does not constitute tax advice. Mileage rates, thresholds, and rules change annually and vary by jurisdiction and employer policy. Consult a qualified tax professional for advice specific to your situation.
I do about 90 miles a week ferrying deliveries and client visits, and every January I do the same thing: I look up the IRS mileage rate, write it on a sticky note above my desk, and forget about it for the rest of the year. That habit cost me real money in 2026. The rate I'd scribbled down in January — 72.5 cents a mile — stopped being correct on July 1. From that date, every business mile I drove was worth 76 cents instead, a jump the IRS doesn't advertise the way it does the January rate, because mid-year changes only happen when fuel and vehicle costs move enough to justify one.
If you've been logging Q3 and Q4 miles at the old number, you've been under-claiming — on 5,000 miles, that's $175 left on the table, and it compounds fast for rideshare drivers, delivery contractors, and field sales reps who put on serious mileage. This guide breaks down exactly how the mid-year change works, what it means for your last quarter of the year, and how the same math plays out if you're claiming mileage in the UK or Canada instead.
What Actually Changed on July 1, 2026
The IRS standard mileage rate is a per-mile amount the IRS sets each year to approximate the average cost of operating a vehicle for business, medical, moving, or charitable purposes. It's meant to save taxpayers from itemizing gas, depreciation, insurance, and maintenance separately — you just multiply miles by the rate.
Normally that rate is set once, in December, for the entire following year. But the IRS reserves the right to issue a mid-year adjustment when fuel prices or vehicle costs shift sharply enough — it last did this in 2022, and it did it again in 2026. For 2026:
The medical and moving rate moved too, from 20.5¢ to 23.5¢ per mile on the same date. The charitable mileage rate didn't change — it's fixed by statute at 14 cents a mile and only Congress can move it, which is why it's stayed flat for over two decades while the business rate has climbed steadily.
Key Takeaway
If any of your 2026 business driving happened after June 30, it's worth 3.5 cents per mile more than the January rate — 76¢ instead of 72.5¢. Splitting your annual mileage log at the July 1 boundary, rather than applying one flat rate to the whole year, is the only way to claim the correct amount.
How to Calculate Your Real Q3/Q4 Deduction
The formula itself hasn't changed — Deduction (or reimbursement) = Miles Driven × Applicable Rate — but with a mid-year increase, you now need two calculations instead of one if any of your driving spans the July 1 line.
Say you're a self-employed sales rep who drove 6,200 business miles in the first half of 2026 and 7,400 in the second half:
- January–June: 6,200 × $0.725 = $4,495.00
- July–December: 7,400 × $0.76 = $5,624.00
- Total 2026 deduction: $10,119.00
Compare that to what you'd get by mistakenly applying the old 72.5¢ rate to the full 13,600 miles: $9,860 — a $259 understatement, just from not splitting the year. Run your own numbers through the mileage reimbursement calculator, which handles the split automatically once you select which half of the year the miles fall into.
💡 Pro Tip
If you track mileage weekly rather than reconstructing it at tax time, tag each trip with the date as you log it. That makes the July 1 split a five-second filter later instead of a forensic exercise through months of receipts.
Reimbursement vs. Deduction: Who Actually Benefits
These two terms get used interchangeably but describe different money moving in different directions. Mileage reimbursement is a payment an employer makes to an employee for using a personal vehicle for work, and it's tax-free to the employee as long as it doesn't exceed the IRS standard rate. A mileage deduction, by contrast, is what a self-employed person or business subtracts directly from taxable income for the same driving — there's no employer in the picture reimbursing anything.
The distinction matters more than people expect:
| Who | What they claim | When rate applies |
|---|---|---|
| W-2 employee, reimbursed by employer | Nothing (reimbursement is already tax-free) | Employer's payment date |
| W-2 employee, unreimbursed | Generally nothing — the 2017 tax law suspended unreimbursed employee expense deductions through 2025 for most workers | N/A |
| Self-employed / 1099 contractor | Mileage deduction on Schedule C | Date miles were driven |
| Small business reimbursing employees | Deductible business expense, tax-free to employee if at/below IRS rate | Payment or accrual date |
If you're a gig-economy driver — rideshare, food delivery, courier work — you almost always fall into the third row: you're claiming a Schedule C deduction, not receiving a reimbursement, and the July 1 rate split applies directly to your bottom line.
How the US, UK, and Canada Rates Compare
Mid-year adjustments and tiered rate structures aren't unique to the US. The UK's HMRC and Canada's CRA both use a different mechanism — instead of raising the rate partway through the year, they lower it after a mileage threshold within the same year.
| Country / Authority | Rate structure | 2026 rate |
|---|---|---|
| US — IRS (business) | Mid-year step-up | 72.5¢/mi → 76¢/mi (Jul 1) |
| UK — HMRC (car/van) | Tiered by annual distance | 55p/mi first 10,000 mi, then 25p/mi |
| Canada — CRA (automobile) | Tiered by annual distance | 73¢/km first 5,000 km, then 67¢/km |
HMRC's Approved Mileage Allowance Payments (AMAP) scheme lets employers pay employees up to 45 pence per mile tax-free for the first 10,000 business miles in a tax year, dropping to 25 pence per mile beyond that — a structure that rewards logging early miles more than a flat-rate system would. The CRA's automobile allowance works the same way in reverse direction of travel, front-loading the higher rate on the first 5,000 kilometres. Whichever system applies to you, the underlying lesson is identical: check where you are relative to the threshold or the date boundary before you assume last month's rate still applies.
The Logging Mistakes That Get Claims Rejected
None of this math matters if your mileage log can't support it. The IRS, HMRC, and CRA all require a contemporaneous log — recorded at or near the time of the trip, not reconstructed from memory in March — showing the date, starting point and destination, business purpose, and distance of each trip.
The three mistakes I see most often, having made two of them myself:
- Estimating instead of logging. "About 200 miles a week" doesn't survive an audit. Odometer readings or a GPS-based mileage app create a defensible number.
- Mixing personal and business trips in one entry. A grocery run tacked onto a client visit needs to be split, not rounded up.
- Forgetting commuting doesn't count. The drive from home to your regular workplace is personal mileage under IRS rules, even if you're self-employed — the deductible mileage starts once you leave for a client site, supplier, or second work location.
⚠️ Note
Choosing the standard mileage rate versus tracking actual vehicle expenses (fuel, insurance, depreciation, repairs) is a decision the IRS mostly locks in for that vehicle the first year you use it for business — switching methods later has restrictions. If you're not sure which method nets you a bigger deduction, run both numbers before you file rather than defaulting to whichever is easier to log.
Frequently Asked Questions
What is the 2026 IRS mileage rate for the second half of the year?
For business driving from July 1 through December 31, 2026, the IRS standard mileage rate is 76 cents per mile, up from 72.5 cents in the first half of the year. Medical and moving mileage rose from 20.5 cents to 23.5 cents per mile over the same boundary, while the charitable rate stayed fixed at 14 cents per mile all year.
Why did the IRS raise the mileage rate mid-year instead of waiting until January?
The IRS can issue a mid-year adjustment when the cost of operating a vehicle — largely fuel prices, but also insurance, maintenance, and depreciation — moves significantly enough that the January rate no longer reflects real costs. It's an infrequent step; the last comparable mid-year increase before 2026 was in 2022.
Do I need to split my mileage log at July 1, 2026 to claim correctly?
Yes, if any portion of your business, medical, or moving mileage was driven both before and after July 1, 2026. Applying a single blended rate to the full year's miles will misstate your deduction or reimbursement — the two halves of the year must be calculated separately at their respective rates and then summed.
Is mileage reimbursement the same as a mileage tax deduction?
No. Reimbursement is a payment an employer makes to an employee for business use of a personal vehicle, and it's tax-free up to the IRS standard rate. A deduction is what a self-employed person or business subtracts from taxable income for the same driving — there's no employer paying it out, so the "reimbursement" and "deduction" concepts apply to different people in different tax situations.
How do UK and Canadian mileage rates differ from the US system?
Rather than a mid-year rate increase, the UK's HMRC and Canada's CRA both use a mileage-threshold system within the same year: HMRC pays 45p per mile for the first 10,000 business miles and 25p per mile beyond that, while the CRA pays 73 cents per kilometre for the first 5,000 km and 67 cents per kilometre after that. Both systems front-load the higher rate rather than adjusting it by calendar date.
Try It Yourself
Whether you're closing out Q3 or planning your Q4 mileage log, the math only works if you apply the right rate to the right miles. Run your actual numbers — split by date, country, or vehicle type — through the mileage reimbursement calculator, and if you're self-employed, cross-check the result against your self-employment tax estimate and your quarterly estimated tax payment so the deduction actually lands where it should.
