| Subject | English | Spanish |
| law | concerted fixing of fees | acuerdo para la fijación de tarifas |
| transp. | cost-plus-a-fixed-fee contract | contrato de margen fijo |
| law | fixed fee | derecho fijo |
| construct. | fixed fee form of prime cost contract | contrato de gastos controlados |
| comp., MS | fixed fee job | trabajo según costo fijo (A type of project in which the customer pays a predetermined amount for the entire project) |