Definition of 'Acceleration Clause'
A contract provision that allows a lender to require a borrower to repay all or part of an outstanding loan if certain requirements are not met. An acceleration clause outlines the reasons that the lender can demand loan repayment.
Also known as "acceleration covenant".
Investopedia explains 'Acceleration Clause'
For example, a borrower who fails to make a payment or who breaks a covenant may be required to pay the lender the balance on a loan. In this case, the borrower is considered in breach of contract.
Acceleration clauses are most commonly found in mortgage and real estate loans. Since these loans tend to be so large, the clause helps protect the lender from the risk of borrower default.