The Institute has been notified by the State Accounting Office of an increase in mileage reimbursement rate, effective January 1, 2023.  

The mileage reimbursement rate for the use of private vehicles on official Institute business, has been increased to $0.655 cents per mile, and is applicable to travel that occurred on or after January 1, 2023. Travel completed before that date will be calculated at the previous rate of $0.625 cents per mile (for July-December 2022).

The new mileage rate has been updated in Workday. New expense items have also been created in Workday for the new 2023 mileage rate titled “Mileage Personal Vehicle – Domestic 2023” for employees and “Non-Employee Mileage – Travel 2022” for non-employees.

2023 Personal Vehicle Mileage Expense Items




The mileage rates for the 2022 calendar year are still available in Workday. Travelers are to select the expense item corresponding to the calendar year that the travel for mileage occurred. Please note that if the incorrect expense item is selected, the expense report will be sent back for correction. 

For additional information or questions please contact the travel team by creating a ticket through ServiceNow.

Please distribute to travelers within your unit.