Authorization hold is the practice within the banking industry of authorizing electronic transactions done with a debit card or a credit card and holding this balance as unavailable either until the merchant clears the transaction (also called settlement), or the hold "falls off." In the case of debit cards, authorization holds can fall off the account (rendering the balance available again) anywhere from 1–5 days after the transaction date depending on the bank's policy; in the case of credit cards, holds may last as long as 30 days, depending on the issuing bank, not the merchants credit card processor.
Some things you should be aware of when using your credit card or atm card at a food service facility.
Some credit card companies and banks will automatically “pre-authorize” a certain percentage of your total in anticipation of a gratuity. This will show up on the account holders online statement and is typically held for 2-5 days. Again not the merchant’s credit card processor. Please review your statement at least one week after the charge if you think you have been over charged.
Voids: When your credit card or atm is used and is voided for any reason, the credit card company or bank will show the transaction as a pending debit to your account for 2-5 days. After that time your account statement will show that no money was taken or charged. If you view your account online, please check after 1 week to see if the transaction has been processed correctly.