The Fixed and Variable Rate reimbursement, also called FAVR, is an IRS-recognized vehicle reimbursement method that can reimburse employees tax-free when program requirements are met. The FAVR model separates fixed vehicle ownership costs from variable driving costs, enabling employers to reimburse employees more accurately for business use of a personal vehicle.
This guide explains how a FAVR reimbursement works, what expenses it covers, key IRS requirements, and how it compares with standard car allowances and mileage reimbursement.
Quick Answer:
FAVR stands for Fixed and Variable Rate. It combines a fixed payment for ownership costs, such as insurance and depreciation, with a variable mileage rate for operating costs, such as fuel, maintenance, and tires. When IRS FAVR requirements are met, reimbursements can be tax-free.
Before comparing FAVR with other reimbursement methods, it helps to understand what this reimbursement is and how the IRS framework works.
What is FAVR?
A fixed- and variable-rate allowance is a tax-free way to reimburse employees for the business use of a personal vehicle. This IRS revenue procedure combines periodic fixed and variable payments for accurate, localized vehicle reimbursement. The acronym FAVR is pronounced like "favor."
To properly administer a FAVR program, the employer must follow IRS procedures. These accounting procedures keep the program non-taxable to the company and the employees. This approach has several advantages over standard car allowances and mileage reimbursements.
What are the IRS FAVR guidelines?
While the IRS has issued several guidelines for FAVR car allowances, two are the most important:
- The FAVR allowance amount must be derived using a standard auto.
- The FAVR allowance amount must be derived from base locality costs.
Here's what those two guidelines mean:
1. IRS standard reimbursement vehicles for FAVR
Many businesses pay employees a standard allowance or standard mileage rate. With FAVR, the employer calculates the rate based on a standard vehicle. This vehicle is the same make and model for all employees, regardless of what vehicle they drive.
2. Localized costs for FAVR rates
With a national mileage rate, everyone receives the same cents-per-mile rate regardless of location. With a fixed and variable rate plan, localized costs determine rates. The employer calculates the FAVR allowance using expense data for the standard auto garaged in the employee's zip code. The localized costs should be supported with a transparent, standardized methodology
Why does FAVR use a standard auto?
The standard vehicle provides a constant, while base locality costs vary. The goal is to reimburse employees for business expenses at the appropriate level.
Standard vehicle vs. employee vehicle
Different vehicles will drive expenses upward or downward (e.g., Ford F-150 vs. Toyota Prius). The actual vehicle should have no bearing on what the employer should pay, since that's a personal choice. Note that a FAVR plan does set a maximum age requirement for the employee's actual vehicle. This is to prevent them from receiving a tax-free benefit for a vehicle that is significantly less valuable than the plan allows.
Maximum standard auto cost for FAVR
Different locations experience different gas prices, insurance rates, and maintenance costs. Therefore, it is necessary to factor in those variations to generate an accurate allowance. Using a standard vehicle simplifies that calculation. Because FAVR is a tax-free benefit, the IRS sets a maximum value for the standard auto used to calculate a FAVR allowance. Because FAVR is a tax-free benefit, the IRS sets a maximum value for the standard automobile used to calculate a FAVR allowance. For 2026, the maximum standard automobile cost used for FAVR calculations is $61,700, according to IRS Notice 2026-10.
How do you calculate a FAVR allowance?
The fixed and variable allowance (FAVR) is a combination of fixed and variable payments. Think of it as the fixed amount of the car allowance and the variable mileage rate. These two payments reflect the dual nature of vehicle expenses. All drivers experience fixed and variable costs, which are reflected in the expenses covered by an FAVR allowance.
Each employee receives a vehicle reimbursement schedule that pays the business use percentage of both types of costs:
Fixed auto costs (localized by zip code)
The fixed monthly payment (like a standard car allowance) covers
- Insurance
- License fees
- Vehicle taxes (if applicable)
- Registration
- Depreciation
Variable auto costs (localized by zip code)
The variable payment (an adjustable mileage rate) covers
- Gas
- Oil
- Maintenance
- Tires
Why reimburse fixed and variable costs separately?
The combination of fixed and variable payments can make FAVR one of the more accurate and transparent ways to reimburse employees for business vehicle use.
To see why, we'll compare a FAVR plan to standard car allowances and mileage reimbursements.
FAVR car allowance vs. standard car allowance
A standard car allowance provides a uniform payment to all employees, regardless of their actual business use. This procedure results in taxable income for both the employee and the employer. Employees who drive frequently receive the same amount as those who drive less. And employees working in high-cost areas receive the same as those in more affordable regions.
In states or local jurisdictions with employee expense reimbursement requirements, employers should also review whether a flat allowance adequately covers necessary business vehicle costs. A FAVR allowance can help address these issues by adjusting reimbursement based on business mileage and localized cost differences.
FAVR reimbursement vs. mileage reimbursement
A typical cents-per-mile reimbursement pays a standard rate to employees experiencing different costs. The payments are tax-free as long as the mileage rate does not exceed the standard business rate published by the IRS. For 2026, the IRS business mileage rate is 72.5 cents per mile.
But the standard rate applied to different employee costs creates problems. Employees who drive a lot will receive a large payment, possibly more than they need. Employees who drive less may be under-reimbursed since fixed costs remain regardless of mileage. By separating fixed and variable costs for each zip code, FAVR solves these problems.
FAVR programs and state labor laws
FAVR allowance rates are transparent, scalable, and precise. By using documented mileage, localized cost data, and a structured reimbursement schedule, FAVR can help employers better comply with employee expense reimbursement laws across different states and localities. This advantage is especially important for organizations with staff in California, Massachusetts, and other states known for employee-friendly labor regulations.
What other IRS FAVR guidelines are there?
The IRS has issued a set of FAVR rules. These rules help FAVR reimbursements qualify for tax-free treatment when the program is properly structured and documented. The vast majority of the rules are based on data modeling.
IRS rules for FAVR
Some of the better-known IRS FAVR rules govern:
- Vehicle value
- Vehicle age
- Insurance requirements
- Annual business mileage
- Business use percentage
- Control employees' participation
Minimum number of employees for FAVR
One important rule is that a company must have at least five (5) employees receiving the FAVR. However, there is no maximum, except for the percentage of management receiving it. This keeps FAVR programs scalable for smaller businesses looking to grow.
Organizational goals and FAVR programs
Additionally, certain FAVR requirements can be tailored to align with company goals. For instance, if a company aims to manage its image, it can set reimbursement rates that encourage the use of newer or more upscale vehicles. This approach would require employees to drive such vehicles.
How are FAVR car allowances administered?
FAVR regulations involve localized data, complex calculations, and change annually. As a result, many employers have a third-party administrator design, implement, and manage the program. FAVR regulations involve localized data, complex calculations, and annual changes. As a result, many employers have a third-party administrator design, implement, and manage the program. This trusted partner stays ahead of the tax code, provides expert guidance, and supplies FAVR reimbursement software that is easy to use and delivers maximum value. This trusted partner stays ahead of the tax code, provides expert guidance, and supplies a FAVR reimbursement software that is easy to use and delivers maximum value.
Switching to a FAVR Plan
Switching from a traditional car allowance to a FAVR plan may reduce tax waste and free up the reimbursement budget. This allows an organization to improve employee benefits and reduce overall expenses, all while paying a third-party administrator.
Likewise, transitioning from the IRS mileage rate saves money by preventing overpayments to employees who drive extensively. Adopting a FAVR plan can also reduce turnover caused by insufficient payments for those who drive less.
How to decide on a FAVR program
Whether you use a car allowance, a mileage reimbursement, or some combination, you will face challenging questions as you seek to offset employee vehicle expenses:
- Do you over-reimburse some employees and under-reimburse others?
- Are you and your employees losing money to unnecessary taxation?
- Are your employees happy with their car allowance or reimbursement?
- Are you able to control reimbursement costs and stay within budget?
- Does your plan violate state labor laws via insufficient reimbursement?
FAVR can help address these questions and simplify the reimbursement process for employees using personal vehicles for business purposes.
Not sure whether FAVR is the right fit for your vehicle reimbursement program? mBurse can help you compare your current car allowance or mileage reimbursement plan against a FAVR model and identify opportunities to improve tax efficiency, fairness, and cost control.
FAQs About FAVR Car Allowances
What does FAVR stand for?
FAVR stands for Fixed and Variable Rate. It is a vehicle reimbursement method that combines fixed payments for ownership costs with variable mileage payments for operating costs.
Is a FAVR car allowance taxable?
A Fixed and Variable Rate reimbursement is tax-free when IRS FAVR requirements are met. Employers must follow program rules, use proper cost data, and require business mileage documentation.
What expenses does FAVR cover?
FAVR typically covers fixed costs such as insurance, registration, license fees, vehicle taxes, and depreciation, as well as variable costs such as fuel, oil, maintenance, and tires.
How is FAVR different from mileage reimbursement?
Mileage reimbursement usually pays a cents-per-mile rate for each business mile. FAVR separates fixed and variable costs and accounts for mileage levels, vehicle costs, and employee locations.
Who is a good fit for FAVR?
FAVR may be a good fit for employers with mobile employees who drive different mileage amounts, work in different territories, or face different regional vehicle costs.