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Company Car Allowance
FAVR
Mileage Reimbursements

Can Employers Pay Less Than the IRS Mileage Rate?

Yes, but the smarter question is whether a lower rate will still reimburse employees fairly, stay tax-efficient, and hold up in stricter reimbursement states.

Kirk Smith
Kirk Smith
Last Updated: July 2, 2026 | Original Posted: July 2, 2026 | 3 min read
Check Your Mileage Rate Compare IRS Rate vs FAVR
2026 Business Rate
72.5¢/mile

Effective January 1, 2026 for business use of a car, van, pickup, or panel truck.

Legal
to pay below IRS in general
Tax-free
to pay below IRS in general
Risk
underpayment in strict states
Better
use cost and mileage data

Quick Answer

Yes. Employers can pay less than the IRS standard mileage rate. The IRS rate is a safe harbor for tax-free reimbursement, not a required minimum. But paying less can create under-reimbursement risk when employees drive in high-cost areas, have high mileage, or work in states with strict expense reimbursement laws.

See when paying less creates risk →

Is your rate too low?

Benchmark your rate against mileage, state laws, regional fuel, and vehicle costs.

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Can an employer legally pay less than the IRS mileage rate?

Yes. Reimbursing at the IRS standard mileage rate is not mandatory. The rate gives employers a simple way to reimburse business mileage tax-free, but it is not a legal floor.

Employers may pay more, less, or exactly the IRS rate. What changes is the tax treatment, documentation requirement, and potential labor-law exposure if the lower amount does not reasonably cover necessary business vehicle expenses.

What happens if you pay below, at, or above the IRS rate?

The IRS rate primarily affects how reimbursements are treated for tax purposes. A lower rate can remain tax-free with accurate mileage logs, but it may still be risky if it under-reimburses employees.

If you payTax treatmentCompliance riskEmployer takeaway
Below 72.5¢/mileGenerally tax-free with accurate mileage documentationPossible under-reimbursement claims in stricter statesUse cost data before lowering the rate
Exactly 72.5¢/mileTax-free under accountable plan rules with mileage recordsOften lower, but not perfect for every regionSimple, but still a national average
Above 72.5¢/mileExcess amount is taxable to the employee and subject to payroll taxLower underpayment risk, higher tax wasteAvoid overpaying through a blunt flat rate

Why companies pay less than the IRS rate

Companies usually consider paying less than the IRS rate for practical reasons. The key is making sure the decision is based on reimbursement data, not just budget pressure.

dollar-symbol

Cost control

Small per-mile reductions can add up quickly across large mobile teams.

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Local cost differences

The IRS rate is a national average and may overpay drivers in lower-cost regions.

gas-station

Fuel price timing

Annual rates can lag real-time fuel and operating cost changes.

Why pennies matter

A 5-cent reduction across 500,000 annual business miles changes reimbursement spend by $25,000. That may help the budget, but only if employees are still fairly reimbursed.

500,000 × $0.05= $25,000

Lowering the rate to save money?

Before changing policy, compare your rate against actual mileage, fuel, insurance, maintenance, state law, and employee take-home value.

Benchmark My Rate See FAVR Alternative

When paying less than the IRS rate can backfire

A lower rate is most risky when a company applies one flat reimbursement rate to employees with very different costs, states, and mileage patterns.

Higher-risk situations

  • Employees drive in California, Massachusetts, Illinois, or other strict reimbursement states
  • High-mileage drivers cover large territories
  • Employees operate in high-cost fuel, insurance, or maintenance markets
  • The same rate is used across multiple regions
  • Employees drive in California, Massachusetts, Illinois, or other strict reimbursement states
  • The company cannot explain how the lower rate was calculated

Lower-risk situations

  • Drivers are concentrated in one lower-cost region
  • Business mileage is low and predictable
  • Mileage is tracked automatically
  • The rate is reviewed regularly against cost data
  • The company has a documented reimbursement policy

Why mileage tracking matters even more when rates are lower

Lowering the per-mile rate can create a new problem if employees self-report mileage on spreadsheets. Some employees may unintentionally or intentionally inflate miles to recover the difference.

Automated mileage tracking helps HR and Finance keep the policy defensible by creating more consistent mileage records, approval workflows, and audit-ready documentation.

mBurse positioning: This is where the page should visually connect the article to mileage tracking, approvals, and reimbursement controls.

What should employers pay instead? The case for FAVR

If the IRS rate overpays some drivers and a lower flat rate underpays others, the answer is usually not a better flat number. It is a better reimbursement structure.

A Fixed and Variable Rate reimbursement program separates fixed costs from variable costs. Fixed costs can include insurance, depreciation, registration, and license expenses. Variable costs can include fuel, maintenance, and tires.

Below-IRS flat rateOne cents-per-mile rate below the IRS rateSmall, uniform, low-cost driving populationsCan under-reimburse high-cost drivers IRS mileage rateOne national cents-per-mile rateSmall, uniform, low-cost driving populationsMay overpay or underpay depending on region FAVRFixed and variable reimbursement using localized cost dataDistributed, higher-mileage, or multi-state teamsMore accurate and defensible when designed correctly

So, should your company pay less than the IRS mileage rate?

If your workforce is small, geographically concentrated, lower-mileage, and supported by accurate mileage tracking, a lower rate may be reasonable.

If your employees work across multiple states, drive different mileage levels, or operate in high-cost regions, a single lower rate may expose the company to under-reimbursement risk while still failing to control costs fairly.

Best answer: Do not lower the IRS rate without benchmarking the policy against actual driving behavior, local costs, tax treatment, and reimbursement laws.

  • Compare reimbursement by state and region
  • Review high-, medium-, and low-mileage driver examples
  • Confirm business mileage is documented accurately
  • Model employee take-home value and company tax impact
  • Evaluate whether FAVR would be more accurate than a flat rate

FAQ

Find out if the IRS rate is right for your drivers.

Compare your current reimbursement program against mileage, tax impact, regional costs, and policy design to identify overpayment, underpayment, and tax waste.

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Vehicle Reimbursement Health Check

Where the IRS rate may overpay or underpay

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