flat fee

Translations
фиксированная плата
He paid a flat fee for the entire service.
Он заплатил фиксированную плату за всю услугу.
Definitions
A flat fee is a fixed amount charged for a service or product, regardless of the time or resources required to provide it. This pricing structure contrasts with hourly rates or variable fees that can change based on the amount of work done or the complexity of the service.
Words
flat

adjective
фиксированный
fee

noun
плата