How Credit Cards work

A credit card system is a type of retail transactioncharged is usually detailed in a cardholder agreement
settlement and credit system, named after the smallwhich may be summarized on the back of the monthly
plastic card issued to users of the system. A creditstatement. (See The TD Gold Travel Visa Cardholder
card is different from a debit card in that it does notAgreement Retrieved January 3, 2006)
remove money from the users' account after everyThe credit card may simply serve as a form of
transaction. In the case of credit cards, the issuer lendsrevolving credit, or it may become a complicated
money to the consumer (or the user). It is also differentfinancial instrument with multiple balance segments
from a charge card (though this name is sometimeseach at a different interest rate, possibly with a single
used by the public to describe credit cards), whichumbrella credit limit, or possibly with separate credit
requires the balance to be paid in full each month. Inlimits applicable to the various balance segments.
contrast, a credit card allows the consumer to 'revolve'Usually this compartmentalization is the result of special
their balance, at the cost of having interest charged.incentive offers from the issuing bank, either to incent
Most credit cards are the same shape and size, asbalance transfers from cards of other issuers, or to
specified by the ISO 7810 standard.incent more spending on the part of the customer. In
A user is issued a credit card after an account hasthe event that several interest rates apply to various
been approved by the credit provider (often a generalbalance segments, payment allocation is generally at
bank, but sometimes a captive bank created to issuethe discretion of the issuing bank, and payments will
a particular brand of credit card, such as Wells Fargotherefore usually be allocated towards the lowest rate
or American Express Centurion Bank), with which thebalances until paid in full before any money is paid
user will be able to make purchases from merchantstowards higher rate balances. Interest rates can vary
accepting that credit card up to a pre-establishedconsiderably from card to card, and the interest rate
credit limit.on a particular card may jump dramatically if the card
When a purchase is made, the credit card useruser is late with a payment on that card or any other
agrees to pay the card issuer. Originally the user wouldcredit instrument. As the rates and terms vary,
indicate their consent to pay, by signing a receipt with aservices have been set up allowing users to calculate
record of the card details and indicating the amount tosavings available by switching cards, which can be
be paid, but many merchants now accept verbalconsiderable if there is a large outstanding balance
authorizations via telephone and electronicBecause of intense competition in the credit card
authorization using the Internet.industry, credit providers often offer incentives such as
Electronic verification systems allow merchants (usingfrequent flier points, gift certificates, or cash back
a strip of magnetized material on the card holding(typically 1 percent) to try to attract customers to their
information in a similar manner to magnetic tape or aprogram.
floppy disk) to verify that the card is valid and theLow interest credit cards or even 0% interest credit
credit card customer has sufficient credit to cover thecards are available. The only downside to consumers
purchase in a few seconds, allowing the verification tois that the period of low interest credit cards is limited
happen at time of purchase. Other variations ofto a fixed term, usually between 6 and 12 months after
verification systems are used by eCommercewhich a higher rate is charged. However, services are
merchants to determine if the user's account is validavailable which alert credit card holders when their low
and able to accept the charge.interest period is due to expire. Most such services
Each month, the credit card user is sent a statementcharge a monthly or annual fee.
indicating the purchases undertaken with the card, andTo compare credit cards
the total amount owed. After receiving the statement,Grace period
the cardholder may dispute any charges that he orA credit card's grace period is the time the customer
she thinks are incorrect (see Fair Credit Billing Act forhas to pay the balance, before interest is charged to
details of the US regulations). Otherwise, thethe balance. Grace periods vary, but usually range
cardholder must pay a defined minimum proportion offrom 10 - 25 days depending on the type of credit
the bill by a due date, or may choose to pay a highercard and the issuing bank.
amount up to the entire amount owed. The creditThe merchant's side
provider charges interest on the amount owedEven some street market stands now take credit
(typically at a much higher rate than most other formscards.For merchants, a credit card transaction is often
of debt). Some financial institutions can arrange formore secure than other forms of payment, such as
automatic payments to be deducted from the user'scheques, because the issuing bank commits to pay the
accounts.merchant the moment the transaction is verified. The
Credit card issuers usually waive interest charges ifbank charges a commission (discount fee), to the
the balance is paid in full each month, but typically willmerchant for this service and there may be a certain
charge full interest on the entire outstanding balancedelay before the agreed payment is received by the
from the date of each purchase if the total balance ismerchant. In addition, a merchant may be penalized or
not paid.have their ability to receive payment using that credit
For example, if a user had a $1,000 outstandingcard restricted if there are too many cancellations or
balance and pays it in full, there would be no interestreversals of charges.
charged. If, however, even $1.00 of the total balanceIn some countries, like the Nordic countries, banks
remained unpaid, interest would be charged on the fullguarantee payment on stolen cards only if ID card is
$1,000 from the date of purchase until the payment ischecked. In these countries merchants therefore
received. The precise manner in which interest isusually ask for ID.