The Procurement Service Center is modifying procedures related to the calculation of tips on services. Effective December 1, 2019, please note:
For tips on meal service related to Official Functions, the maximum allowable amount is now 20% of the final bill (including tax), if the final bill does not already include a tip. If the final bill includes a set amount (of any percentage) for gratuity, then no additional tip may be provided.
For tips on ground service transportation (taxi, shuttle, Uber, Lyft, etc.), the maximum allowable amount is 20% of the service charge, if the final bill does not already include a tip. If the final bill includes a set amount (of any percentage) for gratuity, then no additional tip may be provided. Reasonable tips are allowable on courtesy ground transportation.
Remember that the Meal & Incidental Expense Per Diem amount includes tips for per diem meals, maid, porter, bellhop, and curb-side baggage check-in: these cannot be claimed separately.
The PSC Procedural Statements on Sensitive Expenses and Travel will be updated accordingly, effective 12/1/19.
Source: PSC Communicator | 11/19/2019