Lisäyssopimukset

Lisäyssopimukset are supplemental agreements used in contract law, particularly common in Finnish legal practice. They serve to modify or add to an existing, legally binding contract. Instead of creating an entirely new contract, a lisäyssopimus amends specific clauses or introduces new terms to the original agreement. This ensures that the original contract remains in force, with the modifications clearly outlined in the supplemental document.

The purpose of a lisäyssopimus is to provide a flexible mechanism for parties to adapt their agreements as circumstances change or as further details are clarified. Common situations where a lisäyssopimus might be used include changes in scope of work, adjustments to payment schedules, extensions of deadlines, or modifications to the rights and obligations of the parties. It is crucial that a lisäyssopimus clearly references the original contract it is intended to modify.

For a lisäyssopimus to be legally valid, it must meet the same requirements as the original contract it supplements. This typically includes an offer, acceptance, consideration, and the intention to create legal relations. Both parties must agree to the terms of the lisäyssopimus, and their signatures are usually required to signify their consent. Without proper agreement and execution, a lisäyssopimus may not be enforceable, leaving the original contract unchanged. This method preserves the history and continuity of the contractual relationship while allowing for necessary updates.