Advance clause is a part of a contract that allows for additional loans to be made in the future, even if the lender is not obligated to do so. Current writing on the subject of secured future advances loans gives the impression that they are used chiefly if not solely to finance building construction.Deed of Trust Secures Future Advances. Unlike revocable trusts, transfers of property to an irrevocable trust are deemed completed when the transfer is made. Tax savings and other benefits can be. A future advance is a clause in a mortgage that provides for additional availability of funds under the loan contract without requiring another loan.