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How Credit Cards Work
A user is issued a credit card after an account has been
approved by the credit provider (often a general bank, but
sometimes a captive bank created to issue a particular brand
of credit card, such as American Express Centurion Bank), with
which he or she will be able to make purchases from merchants
accepting that credit card up to a preestablished credit limit
.
When a purchase is made, the credit card user agrees to pay
the card issuer. Originally the user would indicate his/her
consent to pay, by signing a receipt with a record of the card
details and indicating the amount to be paid, but many
merchants now accept verbal authorizations via telephone and
electronic authorization using the Internet.
Electronic verification systems allow
merchants (using a strip of magnetized material on the card
holding information in a similar manner to magnetic tape or a
floppy disk ) to verify that the card is valid and the credit
card customer has sufficient credit to cover the purchase in a
few seconds, allowing the verification to happen at time of
purchase. Other variations of verification systems are used by
eCommerce merchants to determine if the user's account is
valid and able to accept the charge.
Each month, the credit card user is sent a statement
indicating the purchases undertaken with the card, and the
total amount owed. The cardholder must then pay a minimum
proportion of the bill by a due date , and may choose to pay
the entire amount owed or more. The credit provider charges
interest on the amount owed (typically at a much higher rate
than most other forms of debt). Some financial institutions
can arrange for automatic payments to be deducted from the
user's accounts.
Credit card issuers usually waive interest charges if the
balance is paid in full each month, but typically will charge
full interest on the entire outstanding balance from the date
of each purchase if the total balance is not paid.
For example, if a user had a $1,000. outstanding balance
for purchases and pays the entire $1,000. there would be no
interest charged. If, however, even $1.00 of the total balance
remained unpaid, interest would be charged on the full $1,000
from the date of purchase until the payment is received. The
precise manner in which interest is charged is usually
detailed in a cardholder agreement which may be summarized on
the back of the monthly statement. (See The TD Gold Travel
Visa Cardholder Agreement Retrieved January 3, 2006)
The credit card may simply serve as a form of revolving
credit , or it may become a complicated financial instrument
with multiple balance segments each at a different interest
rate, possibly with a single umbrella credit limit, or
possibly with separate credit limits applicable to the various
balance segments. Usually this compartmentalization is the
result of special incentive offers from the issuing bank,
either to incent balance transfers from cards of other
issuers, or to incent more spending on the part of the
customer. In the event that several interest rates apply to
various balance segments, payment allocation is generally at
the discretion of the issuing bank, and payments will
therefore usually be allocated towards the lowest rate
balances until paid in full before any money is paid towards
higher rate balances. Interest rates can vary considerably
from card to card, and the interest rate on a particular card
may jump dramatically if the card user is late with a payment
on that card or any other credit instrument . As the
rates and terms vary, services have been set up allowing users
to calculate savings available by switching cards, which can
be considerable if there is a large outstanding balance (see
external links for some on-line services).
Because profit margins in the credit card industry can be
quite high, credit providers often offer incentives such as
frequent flier miles, gift certificates , or cash back
(typically 1 percent) to try to attract customers to their
program.
Low interest credit cards or even 0% interest credit cards
are available. The only downside to consumers is that the
period of low interest credit cards is limited to a fixed
term, usually between 6 and 12 months. However, services are
available which alert credit card holders when their low
interest period is due to expire. Most such services charge a
monthly or annual fee.
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