MACRS (Modified Accelerated Cost Recovery System)

MACRS (Modified Accelerated Cost Recovery System) is the depreciation method used in the United States to determine how businesses recover the cost of assets over time for tax purposes.

Under MACRS, a larger portion of an asset’s value is deducted in the earlier years of its life, with smaller deductions taken later on. This approach differs from straight-line depreciation, where the cost is spread evenly across the asset’s lifespan.

In some cases, employees who use their personal vehicles for work may choose to claim accelerated depreciation under MACRS on their personal taxes. However, this decision can affect their eligibility for certain tax-free reimbursement programs.

Programs like Fixed and Variable Rate (FAVR), Tax-Free Car Allowance (TFCA), and Cents-Per-Mile (CPM) are designed to reimburse employees for the real, business-required cost of owning and operating a personal vehicle for work. To remain eligible for these tax-advantaged structures, drivers generally cannot use a vehicle that has been depreciated using MACRS.

If MACRS has been applied to a vehicle, a portion or all of the reimbursement may be treated as taxable income, depending on the program and circumstances.

Understanding how MACRS interacts with mileage reimbursement programs helps organizations and drivers make more informed decisions about vehicle ownership, tax treatment, and program eligibility.