Flat-rate billing

The fixed-price contract is an invoicing method in which the service provider undertakes to carry out a specific mission for a price fixed in advance, thus offering the customer predictability of costs.

In contrast to invoicing on a time and materials basis, the price does not vary according to the time or resources used, except for a few minor adjustments.

This system is advantageous for the customer, as it enables precise budget planning and avoids unpleasant financial surprises. What's more, it transfers the risk of time or cost overruns to the service provider, for whom resource planning is all the more important.