Mileage Reimbursement Rate

Effective January 1, 2023

The IRS announced an increase in the mileage reimbursement rate effective Jan. 1, 2023, to $0.655 per mile. This is an increase from the $0.625 IRS rate for the second half of 2022 (refer to Internal Revenue Notice 2022-234, released Dec. 29, 2022). All state agencies may use the IRS rate for travel incurred on and after Jan. 1, 2023.

The Trip Optimizer law is still in place for determining the lowest cost of transportation for travel on state business. The new $0.655 rate is now used for the mileage calculation and for the OMES mileage reimbursement amount referenced in paragraphs E and F of 74 O.S. § 85.45l.

Effective July 1, 2022

The IRS announced an increase in the mileage reimbursement rate effective July 1, 2022, to $0.625 per mile. This is an increase from the $0.585 IRS rate for the first half of 2022 (refer to Internal Revenue News Release 2022-124, released June 9, 2022). 

All state agencies may use the IRS rate for travel incurred on and after July 1, 2022.

The Trip Optimizer law is still in place for determining the lowest cost of transportation for travel on state business. The new $0.625 rate is now used for the mileage calculation and for the OMES mileage reimbursement amount referenced in paragraphs E and F of 74 O.S. § 85.45l.

Effective Jan. 1, 2022

The Internal Revenue Service has announced an increase in the mileage reimbursement rate, effective Jan. 1, 2022, to $0.585 per mile. This is an increase from the $0.56 IRS rate for 2021. (See Internal Revenue Notice-2021-251, released Dec. 17, 2021).

All state agencies may use the IRS rate for travel incurred on and after Jan. 1, 2022.

The Trip Optimizer law is still in place for determining the lowest cost of travel transportation. The new $0.585 rate is now used for the mileage calculation and for the OMES mileage reimbursement amount referenced in Section E and F of the law.

Effective Jan. 1, 2021

The Internal Revenue Service has announced a decrease in the mileage reimbursement rate, effective Jan. 1, 2021, to $0.56 per mile. This is a decrease from the $0.575 IRS rate for 2020. (See Internal Revenue Notice-2020-279, released Dec. 22, 2020).

All state agencies may use the IRS rate for travel incurred on and after Jan. 1, 2021.

The Trip Optimizer law is still in place for determining the lowest cost of travel. The new $0.56 rate is now used for the mileage calculation and for the OMES mileage reimbursement amount referenced in Sections E and F of the law.

Effective Jan. 1, 2020

A Mileage Reimbursement Rate of $.575 for CY 2020 is authorized for all state agencies.The IRS announced its Federal Mileage Reimbursement Rate for CY 2020 in Internal Revenue Notice-2020-05, released 12-31-2019.

Effective Jan. 2, 2019

Mileage Reimbursement Rate - $.50 for CY 2019The mileage rate for travel by executive branch agencies.Federal Mileage Reimbursement Rate - $.58 for CY 2019 – Limited to Certain AgenciesAgencies not under the executive branch are encouraged to use the state established mileage rate for reimbursement. However, these agencies are authorized to use the rate established by the Internal Revenue Service.