FAVR Mileage Tracking: What Employers Need to Know

Mileage tracking is a core part of a Fixed and Variable Rate (FAVR) reimbursement program. 

Employees need reliable records of their business driving, while employers need accurate mileage to calculate reimbursements and support IRS compliance.

The challenge is making that process simple. 

Paper logs, spreadsheets, and end-of-month estimates create extra work and leave more room for mistakes. Automated mileage tracking can make FAVR easier for both employees and administrators.

Here’s what employers need to know.

What Is Mileage Tracking for FAVR?

Mileage tracking for FAVR is the process of recording and substantiating the business miles an employee drives while participating in a FAVR program.

FAVR reimburses employees for the real, business-required cost of owning and operating a personal vehicle for work. It separates those expenses into two categories:

• Fixed costs: depreciation, insurance, registration, license fees, and certain taxes.
• Variable costs: fuel, maintenance, tires, and other expenses associated with driving.

The variable reimbursement is calculated using an employee's substantiated business mileage. Accurate mileage records are therefore essential to calculating the right reimbursement.

What Do Employees Need to Track for FAVR?

Employees participating in FAVR need to substantiate their business mileage.

Under IRS recordkeeping rules, employees need adequate records of their business vehicle use. 

For car expenses, records generally include the date of use, business destination, business purpose, mileage for each business use, and total miles driven during the year.

In practice, a mileage record should support details like when a trip occurred, where the employee traveled, the number of business miles driven, and the business purpose.

The IRS does not require employees to use a specific mileage tracking app. Employers can choose how mileage is collected, provided the records satisfy applicable substantiation requirements.

For field teams that drive regularly, automated tracking can make maintaining those records much easier.

How Does Mileage Affect a FAVR Reimbursement?

FAVR combines a fixed reimbursement with a variable reimbursement.

The fixed portion reimburses ownership costs associated with having a vehicle available for work. The variable portion reimburses operating costs and is tied directly to actual business mileage.

For example, if an employee records 900 qualifying business miles during the month, those miles are used to calculate their variable reimbursement.

Mileage also matters when monitoring the broader FAVR program. Employers typically establish projected annual business mileage, then compare those assumptions with actual driving over time.

If an employee's territory or responsibilities change significantly, their projected mileage may need to be reviewed.

Business Mileage vs. Personal Mileage

FAVR reimburses business driving, not every mile an employee puts on their personal vehicle.

That means mileage records need to distinguish between business and personal trips. 

Regular commuting between an employee's home and their main or regular place of work is also generally considered personal mileage for federal tax purposes.

A good mileage tracking process makes these distinctions easier to manage consistently without asking drivers to reconstruct an entire month of travel from memory.

How Do FAVR Mileage Tracking Apps Work?

Mileage tracking apps can automate much of the recordkeeping involved in a FAVR program.

Depending on the software, employees may be able to automatically capture mileage during working hours, manually start tracking, add missed trips, and classify trips as business or personal.

This reduces manual entry for drivers while giving employers more consistent mileage data.

It's important to separate mileage tracking from FAVR rate calculation. A mileage app records business driving. 

The FAVR methodology separately uses factors such as vehicle costs, geography, projected mileage, and program assumptions to establish fixed and variable reimbursement rates.

Why Does Accurate Mileage Tracking Matter for FAVR Compliance?

FAVR is an IRS-sanctioned reimbursement methodology with specific requirements. Accurate business mileage records help substantiate an employee's driving and support the program's tax treatment.

FAVR also has specific annual mileage requirements.

Under IRS Revenue Procedure 2019-46, an employee generally needs to substantiate at least 5,000 business miles during the calendar year, or 80% of the annual business mileage used to calculate their FAVR allowance if that amount is greater. 

These requirements can be prorated when an employee participates for less than a full year.

Consistent mileage tracking gives employers a clearer view of whether employees are meeting these requirements and whether actual driving still aligns with program assumptions.

What Should Employers Look for in a FAVR Mileage Tracker?

A good mileage tracker should make accurate recordkeeping easier, not create another administrative task.

Look for straightforward trip capture, easy business and personal classification, reliable mileage records, and clear visibility for administrators. 

It also helps when mileage data connects directly with the rest of the reimbursement process.

Ease of use matters. If employees regularly forget to track trips or find the system difficult to use, even sophisticated technology will produce incomplete data.

Make FAVR Mileage Tracking Easier

Accurate mileage tracking is fundamental to a well-run FAVR program.

Employees need records that substantiate their business driving. Employers need accurate mileage to calculate variable reimbursements, monitor FAVR requirements, and understand how people are actually driving.

Automated mileage tracking can make that process simpler for everyone. 

Instead of relying on manual spreadsheets and end-of-month estimates, employees can capture trips as they happen while administrators get clearer data for managing the program.

If you're considering FAVR or looking for a simpler way to manage mileage tracking, Cardata can help you build and manage a reimbursement program that connects mileage capture, reimbursement, and compliance in one process.