FAVR Compliance: IRS Rules and Requirements for 2026

Fixed and Variable Rate (FAVR) reimbursement gives employers a structured way to reimburse employees for the real, business-required cost of owning and operating a personal vehicle for work. 

When a FAVR program meets IRS requirements and the applicable accountable plan rules are satisfied, qualifying reimbursements can be excluded from an employee’s taxable wages.

Keeping a FAVR program compliant requires attention to both the way the program is designed and the employees participating in it.

Mileage, vehicle cost and age, insurance, reimbursement calculations, documentation, and employee eligibility all matter. 

Employers also need to monitor these requirements over time as employees change vehicles, insurance policies expire, and driving patterns shift.

Here’s what employers and drivers should know about FAVR compliance in 2026.

What Is FAVR Compliance?

Fixed and Variable Rate (FAVR) program compliance means meeting the IRS requirements that allow a FAVR allowance to receive its intended tax treatment.

Under FAVR, employees receive fixed and variable payments. 

Fixed payments cover projected ownership costs such as depreciation or lease payments, insurance, registration and license fees, and personal property taxes. 

Variable payments cover projected operating costs such as fuel, oil, tires, routine maintenance, and repairs.

This structure is designed to reimburse employees for the real, business-required costs associated with owning or leasing and operating a personal vehicle for work.

FAVR rates are also geographically sensitive. 

Under IRS Revenue Procedure 2019-46, the data used to determine an allowance must come from the applicable base locality, reflect retail prices paid by consumers, and provide a reasonable and statistically defensible approximation of employees’ vehicle expenses.

That ability to account for geography, mileage, and different types of vehicle costs is one of the defining features of FAVR.

What Are the Main FAVR Compliance Requirements?

Revenue Procedure 2019-46 contains detailed requirements for calculating and administering FAVR allowances. 

Here are some of the rules employers are most likely to encounter when managing a program.

1. A FAVR Program Must Cover at Least Five Employees

A payor cannot provide a FAVR allowance unless its FAVR allowances cover at least five employees in total at all times during the calendar year.

This makes FAVR more relevant for organizations with groups of employees who regularly use personal vehicles for work.

Companies with smaller driver populations may consider a different reimbursement structure, such as Cents-Per-Mile (CPM). 

CPM reimburses employees for the real, business-required cost of operating a personal vehicle for work through a per-mile reimbursement structure.

2. FAVR Has Business Mileage Requirements

There are two mileage figures employers should understand.

First, the annual business mileage built into a FAVR allowance cannot be less than 6,250 miles per year. 

The IRS defines this as the amount the payor reasonably projects an employee will drive the standard automobile while performing services as an employee.

Individual employees then have a separate substantiation requirement. 

A driver must substantiate at least 5,000 business miles during the calendar year, or 80% of the annual business mileage used by the FAVR allowance if that amount is greater.

For example, if a program is based on 10,000 annual business miles, the employee would need to substantiate at least 8,000 business miles.

The IRS permits the individual mileage requirement to be prorated monthly when an employee is covered by the FAVR allowance for less than a full calendar year.

These rules are one reason FAVR tends to make sense for employees with regular business driving.

3. FAVR Has Employee Population Requirements

FAVR also has rules governing who can participate.

A payor cannot provide a FAVR allowance to a control employee as defined under the applicable tax regulations. 

A FAVR allowance also cannot cover a population in which a majority of participating employees are management employees at any point during the calendar year.

For employers with several job levels or different driver populations, these requirements should be considered when deciding which employees belong in a FAVR program.

4. FAVR Has Business-Use Assumptions

When an employer calculates a FAVR allowance, it uses a business-use percentage based on projected annual business and total mileage.

Under Revenue Procedure 2019-46, that business-use percentage cannot exceed 75%.

The IRS also provides specific percentages employers may use in place of demonstrating the reasonableness of the percentage through annual employee mileage records. 

These percentages vary according to the annual business mileage used in the program.

This is part of the underlying FAVR rate methodology rather than a mileage target an individual driver needs to hit.

5. Employee Vehicles Must Meet Cost Requirements

FAVR rates are calculated using a standard automobile selected by the employer rather than the exact costs of every vehicle employees choose to drive.

For an employee’s vehicle to qualify, its cost when new must have been at least 90% of the standard automobile cost used to determine the employee’s FAVR allowance for the first calendar year that vehicle is covered.

The IRS also places an annual cap on the standard automobile cost used to calculate a FAVR allowance.

For 2026, IRS Notice 2026-10 sets the maximum standard automobile cost at $61,700, including trucks and vans.

That $61,700 figure is the maximum cost of the standard automobile used in the FAVR calculation. 

It is separate from the 90% rule that applies to an employee’s qualifying vehicle.

6. Vehicles Must Meet the Retention-Period Rule

Every FAVR allowance includes a retention period. This represents the number of calendar years an employer expects an employee to drive the standard automobile before replacement.

Under IRS rules, the retention period cannot be shorter than two calendar years.

An employee’s vehicle model year also cannot differ from the current calendar year by more than the number of years in the program’s retention period.

Vehicle age therefore needs to be monitored throughout the life of the program. 

A vehicle that meets the requirements when an employee enters FAVR may eventually age beyond the program’s retention-period limit.

7. Employees Must Meet Insurance Requirements

Insurance is another specific FAVR requirement.

The insurance component used to calculate the allowance must be based on current insurance rates for the standard automobile in the applicable base locality. 

The IRS specifies that this calculation should exclude rate-increasing factors such as poor driving records or young drivers.

The employee must also carry insurance coverage limits at least equal to the limits used to calculate the program’s periodic fixed payment.

Employers may set additional vehicle and insurance requirements based on their own risk policies.

What Documentation Is Required for FAVR Compliance?

Documentation plays an important role in maintaining a compliant and defensible FAVR program.

Within 30 days after a FAVR allowance first covers an employee’s vehicle, or covers it again after a lapse, the employee must provide a written declaration containing required information.

This includes the vehicle’s make, model and year, written proof of insurance coverage limits, and its odometer reading. 

Depending on whether the vehicle is owned or leased, additional vehicle cost and tax-related information is also required.

Within 30 days after the beginning of each subsequent calendar year, employees must again provide their vehicle make, model and year, proof of insurance limits, and odometer reading.

Employers or their agents also have recordkeeping responsibilities. 

They must maintain written records of the statistical data and projections used to calculate FAVR payments along with the information employees provide.

There is also a year-end reporting requirement that is easy to overlook. 

Within 30 days after the end of each calendar year, the employer must provide each employee who was covered by FAVR with a statement containing certain required information. 

For vehicle owners, that includes the depreciation amount included in the fixed payments and an explanation of the applicable depreciation treatment. 

Different information applies to leased vehicles.

What Mileage Records Do Employees Need?

Employees still need to substantiate business driving.

IRS Publication 463 explains the recordkeeping principles that apply to business transportation expenses. 

Records generally need to establish details such as mileage, date, destination, and business purpose.

Records should also be created at or near the time of the trip. 

The IRS specifically recognizes computer records as a potential form of adequate written recordkeeping.

Regular travel between an employee’s home and main or regular workplace is generally considered personal commuting rather than deductible business transportation.

Accurate mileage capture therefore supports more than reimbursement calculations. It helps establish which miles qualify as business driving in the first place.

Are FAVR Rates Based on an Employee’s Home Address?

Geography matters in FAVR, although the rule is more specific than simply calculating every expense from an employee’s home address.

For fixed costs, the IRS says the base locality is generally the geographic area where the employee resides.

For variable costs, the base locality is generally the area where the employee drives while performing services for the employer.

That distinction allows FAVR to account for geographic differences in expenses such as insurance, registration, fuel, and maintenance.

For organizations with employees across multiple states and markets, using appropriate geographic data can help reimbursement rates more closely reflect the costs associated with employees’ work-required driving.

What Happens If an Employee Falls Out of FAVR Compliance?

Falling out of FAVR compliance requires more nuance than simply saying the entire reimbursement automatically becomes taxable.

Revenue Procedure 2019-46 says that when a mileage allowance fails one or more FAVR requirements, the employee cannot be treated as covered by a FAVR allowance during the period of the failure.

The expenses related to that allowance may still be treated as substantiated under other IRS mileage-allowance rules to the extent those requirements are satisfied.

The IRS business standard mileage rate can become relevant when determining how much of an allowance is considered substantiated outside the FAVR rules. 

Amounts that do not meet the applicable accountable plan and substantiation requirements can be treated differently for tax purposes.

This is one reason employers need a clear process for identifying and addressing compliance issues rather than waiting until year-end.

What Is the IRS Mileage Rate for 2026?

There are two business standard mileage rates to be aware of in 2026.

The IRS originally set the 2026 business rate at 72.5 cents per mile beginning January 1.

In Announcement 2026-11, the IRS increased the business standard mileage rate to 76 cents per mile, effective July 1, 2026. The IRS said the adjustment resulted from recent increases in fuel prices.

The timing matters. 

The revised 76-cent rate applies to qualifying transportation expenses paid or incurred on or after July 1 and to mileage allowances paid to an employee on or after July 1 for transportation expenses the employee also paid or incurred on or after July 1.

The earlier 72.5-cent rate continues to apply to transportation expenses paid or incurred before July 1 and in the other circumstances specified by the IRS.

FAVR itself does not simply reimburse employees at the standard mileage rate. 

The rate is relevant to other mileage reimbursement and substantiation rules and can become particularly important when a FAVR allowance fails to meet FAVR requirements.

How Can Employers Maintain FAVR Compliance?

FAVR compliance requires attention throughout the year.

Employers need processes for maintaining mileage records, collecting vehicle and insurance documentation, monitoring vehicle age, reviewing driver mileage, and maintaining the data and projections behind reimbursement rates.

Driver populations can change too. An employee’s mileage may fall, a vehicle may age out of the applicable retention period, or insurance information may need to be updated.

Good administration makes those changes easier to spot and address.

Technology can support this process through automated mileage capture, compliance monitoring, insurance verification, and centralized reporting. 

The practical goal is to give administrators a clear view of the program while giving drivers an understandable way to see and meet their requirements.

Is FAVR Right for Every Driver?

FAVR is generally most useful for employees whose business driving patterns fit its mileage and program requirements.

Other employees may be better suited to Cents-Per-Mile (CPM) or Tax-Free Car Allowance (TFCA). 

CPM and TFCA also reimburse employees for the real, business-required cost of owning or operating a personal vehicle for work, using different reimbursement structures and compliance requirements.

Organizations with different types of employees can use a mixed reimbursement strategy, matching drivers to programs based on their role, mileage, location, and business driving requirements.

The goal is to choose a reimbursement program that fits how employees actually drive for work and that the organization can administer clearly and consistently.

Keep FAVR Compliance Clear With Cardata

FAVR gives employers a structured way to account for the costs employees take on when using personal vehicles for work. 

Maintaining that structure means keeping reimbursement calculations, mileage records, vehicle information, insurance, and driver eligibility aligned with IRS requirements.

Cardata helps companies design and manage FAVR, CPM, and TFCA programs for mobile workforces. 

If you’re reviewing an existing FAVR program or considering a different approach to vehicle reimbursement, talk to Cardata about building and managing a program that is fair, clear, compliant, and practical for your team.