Are Credit Cards a service to banks?
"As i see it, with a debit card, they   are taken kinda out of the game. They   are not lending money, it seems really   bad for them. Not exactly. It is true that they're not lending money, but they charge a hefty commission from the retailers for each swipe which is pure profit with almost no risk. One of the proposals considered (or maybe approved already, don't know) in Congress is to cap that hefty commission, which will really make the debit cards merely a service for the checking account holder, rather than a profit maker for the bank. On the other hand, it's   definitely good for individuals. I disagree with that. Debit cards are easier to use than checks, but they provide much less protection than credit cards. Here's what I had to say on this a while ago, and seems like the community agrees. But, why do we really need a credit   history to buy some of the more   expensive stuff Because the system is broken. It rewards people in debt by giving them more opportunities to get into even more debts, while people who owe nothing to noone cannot get a credit when they do need one. With the current system the potential creditor can only asses the risk of someone who has debt already, they have no way of assessing risks of someone with no debts. To me, all this credit card system   seems like an awfully nice way to make   loads of money, backed by governments   as well. Well, credit cards have nothing to do with it. It's the credit scores system that is broken. If we replace the ""card"" with ""score"" in your question - then yes, you're thinking correctly. That of course is true for the US, in other countries I have no knowledge on how the creditors assess the risks." Credit cards are a golden goose for banks, as they get to issue high-interest loans and simultaneously generate alot of fee income. Debit cards aren't quite as good, but they still generate substantial fee income -- ~2% of every credit/non-PIN debit transaction goes to the bank and credit card network. Credit histories exist because they are the most effective tool available to predict whether you will pay back your loans or not. You don't need a credit history to buy most things, you need a credit history to get a large loan. Think of it from perspective of a lender: Credit scoring is the bank's way screening out people who are expensive to do business with. It's objective, doesn't discriminate on the basis of race, sex or other factors, and you have recourse if the rating agencies have incorrect information.
There are 3 entities in a credit card transaction; Typically when you swipe for 100, the merchant only gets around 97.5. The 2.5 is divided amongst the 3 entities, roughly around 0.5 for the Merchant Bank, around 0.5 for the Card Network and a lions share to Issuing Bank of around 1.5 The reason Issuing Bank gets large share is because they take the risk and provide the credit to customer. Typically the Issuing Bank would pay the Merchant bank via the Card Network the money in couple of days. So the Merchant Bank is not out of funds. The Issuing Bank on the other hand would have given you a credit of say 10 to 50 days depending on when you made the transaction and when the payment is due. On an average 30 days of credit. So roughly the Acquiring Bank is lending money at the rate of 18%. It is from this money the Issuing Bank would give out rewards, which is typically less than 1%. Also in cases where say Merchant Bank and the Issuing Bank are same, Bank would make money on both the legs of transaction and hence launch co-branded cards with better rewards. The above numbers are illustrative and actual practices vary from Bank to Bank to card Network to Country Related question at How do credit card companies make profit? Michael Pryor's answer is accurate to the actual question asked. The current accepted answer from Dheer is not entirely true but roughly provides an overview of the different entities involved in a typical transaction, with some wrong terminologies, corrected and improved below.  The issuing bank, the one that issues the credit card to the customer. When it comes to the service fee split, the issuer bank takes on the majority of the cut in the service fee paid by the merchant to the different entities. For example, on a 2.5% overall fee paid by merchant, roughly 1.5% goes to the issuer, 0.3% goes to the card network (visa, master card, etc) and the remaining 0.7% goes to the acquiring bank. Reward programs have a partnership with participating merchants, where merchants are charged a higher service fee, for the likelihood of driving a higher volume of transactions to the merchant. A portion of the rewards also comes from the issuer, who shares a percentage of their fee back to the customer, in exchange for the same likelihood of making more profit through increased volume in total transactions. For example, a reward program may charge merchants 4.5% fee, with 3.5% of it going to the issuer. Upto 3% of this can be given back to the customer for their loyalty in using the card service. The banks can afford to take as little as 0.5% instead of their regular 1.5% due to the increased volume of transactions and the fixed fee they collect as membership fee. Note that costco has a similar business plan, but they make money entirely of membership fee. So with enough clients, banks can theoretically afford to run their program entirely on membership fees, costing no additional service fee to merchants. The service fee depicted above is arbitrary, and it can be lowered if the merchant is also a client of the issuing bank, that is, both the issuing bank and acquiring bank are the same. So it is kind of a win-win-win situation. And as usual, the banks can afford to make a larger income, if the customer ends up paying interest for their credit - although the rewards program is not designed accounting on this. Businesses are free to decide what payment methods they accept for their goods and services. Businesses sometimes advertise what credit cards they accept by posting some stickers at their door. When your credit card isn't among them and you don't have enough cash with you, ask about your card before you order. If a business doesn't accept your credit card, your best recourse is to take your business elsewhere. When you already ate there and got into an awkward situation because you assumed that they would accept your card, you might also want to write an online review of the place and warn others to bring cash for their visit (but please be fair in the review. When the food and service are decent, a restaurant doesn't deserve a one star rating just because they don't take credit cards). Note that businesses have good reasons to not accept credit cards. It often means additional cost for them in form of: But there is also a more shady reason. Taking payment in cash means that there is no electronic trail of the transaction. That makes it far easier for an establishment to misreport their income. They might under-report it to evade taxes or over-report it to launder money (both are illegal, of course). set up a US company (WY is cheap and easy), go south and open a personal and business bank account, ask for the itin form. file for the itin. set up your EIN for the company. get a credit card for both. pay some mail forwarding service with it. file for taxes in the next year using your itin. prepaid cards do not link to your tax id Yes. it is possible, I have seen many times banks permitting overdrawing and later charging a high courtesy fees. Of course in many countries this is not permitted. In one of my account, I am running negative balance as the bank has charged its commission which is not due. "You ask about the difference between credit and debit, but that may be because you're missing something important. Regardless of credit/debit, there is value in carrying two different cards associated with two different accounts. The reason is simply that because of loss, fraud, or your own mismanagement, or even the bank's technical error, any card can become unusable for some period of time. Exactly how long depends what happened, but just sending you a new card can easily take more than one business day, which might well be longer than you'd like to go without access to any funds. In that situation you would be glad of a credit card, and you would equally be glad of a second debit card on a separate account. So if your question is ""I have one bank account with one debit card, and the only options I'm willing to contemplate are (a) do nothing or (b) take a credit card as well"", then the answer is yes, take a credit card as well, regardless of the pros or cons of credit vs debit. Even if you only use the credit card in the event that you drop your debit card down a drain. So what you can now consider is the pros and cons of a credit card vs managing an additional bank account -- unless you seriously hate one or more of the cons of credit cards, the credit card is likely to win. My bank has given me a debit card on a cash savings account, which is a little scary, but would cover most emergencies if I didn't have a credit card too. Of course the interest rate is rubbish and I sometimes empty my savings account into a better investment, so I don't use it as backup, but I could. Your final question ""can a merchant know if I give him number of debit or credit card"" is already asked: Can merchants tell the difference between a credit card and embossed debit card? Yes they can, and yes there are a few things you can't (or might prefer not to) do with debit. The same could even be said of Visa vs. Mastercard, leading to the conclusion that if you have a Visa debit you should look for a Mastercard credit. But that seems to be less of an issue as time goes on and almost everywhere in Europe apparently takes both or neither. If you travel a lot outside the EU then you might want to be loaded down with every card under the sun, and three different kinds of cash, but you'd already know that without asking ;-)" In general, you can do whatever you'd like with the money. Many (perhaps most?) banks offer different ways to receive the money, with the two most popular options being direct payment to other debts, or direct deposit into your bank account. If you choose the latter you can do whatever you'd like with that money once you receive it. Even in the case when you have the bank make direct payments to other credit cards I'm guessing they will not care if it's someone else's name on the account, but that could be bank specific. Some tips: I would like to offer a different perspective here.  The standard fee for a credit card transaction is typically on the order of 30 cents + 2.5% of the amount (the actual numbers vary, but this is the ballpark). This makes small charges frequently unprofitable for small merchants. Because of this they will often have minimum purchase requirements for credit/debit card payments. The situation changes for large retailers (think Wal-mart, Target, Safeway, Home Depot). I cannot find a citation for this right now, but large retailers are able to negotiate volume discounts from credit card companies (a guy who used to work in finance at Home Depot told me this once). Their transaction fees are MUCH lower than 30 cents + 2.5%. But you get the same reward points on your credit card/debit card regardless of where you swipe it. So my personal philosophy is: large chain - swipe away without guilt for any amount. Small merchant - use cash unless it's hundreds of dollars (and then they may give you a cash discount in that case). And make sure to carry enough cash for such situations. When I was a student, that was about $20 (enough for coffee or lunch at a small place).