Agency Identifier (AID) 3 Agency Identifier of account owner. Used in conjunction with the main account code, the AID represents the department or agency responsible for the TAS. Value required, never blank.
With regard to mortgage lending, the âpar rateâ is the interest rate a borrower will qualify for with a given bank or mortgage lender assuming there is no interest rate manipulation.
Flat rate. A flat fee, also referred to as a flat rate or a linear rate, refers to a pricing structure that charges a single fixed fee for a service, regardless of usage. Less commonly, the term may refer to a rate that does not vary with usage or time of use. [hide]