The key principle of contractual relations between contractors and contractors is the financial balance, which is the relationship between the contractor’s costs and the contractor’s remuneration, which must be maintained for the duration of the contract.

Every time a new event breaks this relationship, it is necessary to establish its balance.

When a company wins the bid for a particular work and signs the contract, with the conditions set forth in the bidding document, the technical specifications, quantitative and unit costs included in the budget worksheet, the Social and Complementary Laws used, the composition of BDI , global price, physical-financial schedule defined by the term stipulated in the proposal, means all of these elements represents the initial financial economic equation of the contract, which presuppose balance for all purposes.

It is important to note that the so-called economic financial imbalance of the contract refers solely to these initial conditions and cannot be attributed to the possible mismanagement of the contract.

Therefore, the initial equation means that, when signing the contract, the tenderer studied, analyzed and presented a price proposal based on data that presuppose that it is perfectly feasible to execute it under conditions of economic and financial unbalanced.

Some hypothesis of unbalance:

• Unilateral amendment of the contract

• Act of authority

• Modification in design or specifications

• unpredictable facts

• Extension of contractual deadlines