<P> Authorization hold (also card authorization, preauthorization, or preauth) is the practice within the banking industry of verifying electronic transactions initiated with a debit card or credit card and rendering this balance as unavailable until either the merchant clears the transaction, also called settlement, or the hold "falls off ." </P> <P> In the case of debit cards, authorization holds can fall off the account, thus rendering the balance available again, anywhere from one to eight business days after the transaction date, depending on the bank's policy . In the case of credit cards, holds may last as long as thirty days, depending on the issuing bank . </P>

When does a pre authorization take to cancel itself