Debit Card - What It Is And How It Works

Do you remember the days when the debit card was the most important means of transacting business? Very few people then had credit cards. Together with the check book, it was the primary means of doing transactions. Those were the days when there were very few credit-card owners.

So what exactly is a debit card and how does it work? It is like a credit card, made of plastic and is used as an alternative payment methods to cash when purchases are made. Typically, it is directly linked to the card holder's account. Whenever they are used to do transactions, the card holder's account is automatically deducted.

Here is an example of how it works. John Doe has one that is tied to his savings account. He has an opening balance of $15,000. Now since it is tied to a savings account, John Doe can use his card to do $15,000 worth of transactions, either in the form of purchases or ATM withdrawals.

Many debit cards have a maximum withdrawal amount per cycle built into them. For instance, you may have a withdrawal limit of $3,000 every three days. What this means is even though there may be more than $3,000 in your account, they can only withdraw up to $3,000 in any three day cycle. This particular feature was used to safeguard cardholders against possible theft and the subsequent draining of the cardholder's account.

Coming back to the example above - assuming John Doe had a three day cycle limit of $3,000, and he made a purchase of a stereo set costing $1,500 on day one, the balance on his savings account would now stand at $13,500, and over the next two days he will only be able to do ATM withdrawals and or purchases to the tune of a $1,500. Again, this feature is designed to protect the card holder against theft.

If after doing a number of transactions, John Doe brought down the balance in his savings account to $1,000, then this is all that will be available to him even though he has a three day withdrawal cycle of $3,000.

Debit cards are a safe means of making purchases since it saves the purchaser from having to walk around with cash in order to make his or her purchasers.

When this was the primary tool for making purchases, it kept card owners out of financial trouble since they could only use or withdraw what was in their account, and could not overdraw their balances.

Now how is John Doe's account updated each time a transaction is done? Each debit card has a black strip at the back of it. This is known as the magnetic strip and contains information about the card holder that cannot be seen by the naked eye. This information includes the card holder's name, banking institution, bank account, branch, and other pertinent information. When the card is used to either do ATM withdrawals or purchases from merchants, a card reader is used to initiate and conduct the transaction. In the case of an ATM withdrawal, the debit card owner place is the card in the card reading mechanism, and enters a Personal Identification Number or PIN that identifies him or her to the system. This is validated by the machine and opens the way for the cardholder to do an ATM transaction. Withdrawals of amounts that fall within the account owner's balance will be honored. All others will be declined.

When the cardholder makes a purchase, pretty much the same steps are carried out as if he were going to do and ATM transaction. The only difference here is instead of the big ATM machine, the merchant to have a much smaller hand-held cards Reading machine. The steps a pretty much the same. The merchant swipes the debit card in the card Reading mechanism then enters the amount of the transaction. The card owner must now validate the transaction by entering his of her Personal Identification Number. Once all is correct up to this point, the card reading machine would now use the network that is in place to determine whether the cardholder has funds in his or her account. If they do the transaction is completed. If they do not the transaction is declined.

While debit cards are not as popular as credit-cards, they're certainly a very valuable tool for anyone who is serious minded about savings and monitoring their indebtedness to financial institutions. Since the debit card typically works with the card owner's available balance, it negates the whole credit process thus helping the cardholder to avoid on necessary indebtedness. It disciplines the card owner into managing their personal finance and thus saving credit facilities for when they are really needed. That being said, they are an excellent means of rebuilding your credit.