fixed price
noun [ C ]
COMMERCE ukusa price that will not change after it is agreed:
We agreed to purchase the finished goods at a fixed price.
With a fixed-price contract, the builder pays all extra costs beyond its agreed-upon value.
a price that is set by a government, etc.:
In this model, if the price of oil were to rise above the fixed price set by the U.S. government, the government would pay the difference.