Depending on the actual working conditions, the following costs may be applicable:
Interpreter's fees are generally invoiced at a daily rate. Aside from the interpreting service on the day/s of the event itself, it also includes the interpreter's preparation, study of the subject matter, as well as researching and updating terminology.
A cancellation fee and the reimbursement of costs already incurred by the interpreter are usually agreed contractually for cases where the client cancels an interpreting assignment.
Fee for time spent in travel, for arrival/departure days.
Interpreters’ travel costs to and from the venue (against receipt or as a flat fee).
Rental of simultaneous interpretation equipment (soundproofed interpretation booth(s), interpretation consoles, microphones, transmitters, receivers, headsets, cabling, sound system monitoring by qualified technician, etc.)
Food and (where required) lodging expenses incurred in connection with the interpreting assignment are borne by the client. Normally, food and lodging are paid directly by the client or reimbursed against receipt. Alternatively, an additional flat fee (see Subsistence allowance) is paid to cover these expenses.
also called "per diem"/”per noctem”
If interpreters work in cities other than the city that they have declared their official residence (professional address), they incur additional costs due to their absence, which they bill the client in the form of a subsistence allowance. When staying overnight, the interpreter may also invoice a "per noctem".
The rights to further exploitation of interpreting services (e.g., recording, TV transmission, web-streaming) are to be paid for separately, where applicable.
Consultant interpreters will invoice a consultancy fee for consulting services.