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ATM cash withdrawal with banknotes illustrating withdrawal limits

ATM

Can I Withdraw Unlimited Money from an ATM?

Like any physical device, ATMs have certain limits. Logically, it may seem like you could withdraw as much money as the ATM's cash cassettes can physically hold (10s, 20s, 50s, 100s, etc.), but that is not actually the case.

POS terminal processing an EMV chip card transaction

Credit Card

Application Interchange Profile (AIP)

The Application Interchange Profile indicates the application functions supported by the card. The AIP values and their descriptions are given below. Where is the AIP found? The AIP is a 2-byte piece of data stored on the card, carried under EMV tag 82.

Mifare contactless smart card

Debit Card

What is a Mifare Card?

A type of smart card containing a microchip and simple software, which performs contactless reading when brought close to a smart card reader. It isn't linked to a bank account and has no credit limit like credit cards. You can spend up to the amount loaded onto the card...

Embossed debit card with raised card number and cardholder name

Debit Card

What is an embossed debit card?

The main difference between embossed debit cards and standard debit cards is that the card number, cardholder name, and expiration date are printed in raised, embossed format rather than flat.

Credit card used for a mail order transaction

Credit Card

Which Cards Can I Use for Mail Order Transactions?

Debit cards and prepaid cards are generally closed to mail order transactions. Mail order authorization is held on credit cards. Unless specifically requested at application, a card is issued closed to mail order transactions.

Diagram showing how pre-authorization blocks a card's available limit

Credit Card

Which Cards Can Be Used for Pre-Authorization?

Pre-authorization reduces the merchant's risk by blocking part of the card's limit for a set period. Since a credit card has a defined limit, an amount can be blocked against it. ATM cards and prepaid debit cards have no such limit to block.

Diagram explaining how a pre-authorization transaction works on a credit card

Merchant & POS

What Is a Pre-Authorization Transaction?

An operation that allows a credit card's limit to be blocked for a period, due to the nature of the product or service sold. Preferred mainly by companies in travel, tourism, and car rental.

Diagram illustrating ISO 8583 Field 12 local transaction time

ISO 8583

ISO 8583 Field Descriptions (F12)

DE 12-TIME, LOCAL TRANSACTION: the local time at which the transaction took place at the point of transaction (ATM, POS). 6 digits, hhmmss format. F12 differs from F7 (Transmission Date and Time).

Diagram explaining the MCC merchant category code field in ISO 8583 messages

ISO 8583

ISO 8583 Field Descriptions (F18)

F18-MERCHANT TYPE: This is the merchant's category code (MCC) information. It must contain values from the Mastercard or Visa MCC Code list. It is a 4-digit numeric value. For ATM transactions, MCC code 6011 should be sent. The role of MCC in authorization...