What are the reasons to get more than one credit card?
In the case of reward cards, different cards may offer different rewards for different kind of purchases. For example, in the UK, one of the Amex cards offers 1.25% cashback on all purchases, whereas one of the Santander cards offers 3% on fuel, 2% or 1% on certain other transactions, and nothing on others. Of course, you then have to remember to use the right card! Another reason is that a person may use a card for a while, build up a good credit limit, and then move to a different card (perhaps because it has better rewards, or a lower interest rate, etc) without cancelling the first. If it costs nothing to keep the first card, then it can be useful to have it as a spare. Another reason is that the amount of unused credit you have is a positive factor on your credit score.  It's generally easier to open several different accounts for $X dollars each with different banks than to get your current bank to raise your limit severalfold in a single go.  Your current bank has to worry about why you suddenly are asking for a large additional amount of credit; while other banks will be willing to offer you smaller amounts of credit in the hope that you transfer your business from your current bank to them. A friend of mine has two credit cards.  He has specifically arranged with the card issuers so that the billing cycles are 15 days out of sync.  He uses whichever card has more recently ended its billing cycle, which gives him the longest possible time between purchase and the due date to avoid interest. I have a fair number of cards floating around some reasons I have opened multiple accounts. I am not saying that it is for everyone but there are valid scenarios where multiple credit cards can make sense. Many reasons mentioned already. The reason why I have multiple is missing: I have a personal card for my private use and a company card for company use. Another good reason: if you have to replace a card due to damage, loss, or identity theft it's nice to have a backup you can use until the new card for your primary account arrives. I know folks who use a secondary card for online purchases specifically so they can kill it if necessary without impacting their other uses, online arguably being at more risk. If there's no yearly fee, and if you're already paying the bill in full every month, a second card/account is mostly harmless. If you have trouble restraining yourself with one card, a second could be dangerous. "3 reasons I can think of: I once worked for a bank and when credit scoring for loans, if you had been approved by different institutions, you were given a better score. So if you held a Visa and Mastercard (as opposed to two Visa cards) your credit score would go higher. More than 6 cards though looked suspicious and your score would take a big hit. Having more than card has helped me when getting special offers multiple times from some websites where it was limited to ""one per customer"" though most just used your address or email account. If you owed $1000 in total which you can't pay off in one go, it is better to have that split across two cards. You would be paying interest on $500 on each card but when you have one card paid off, the interest you would be paying on the other would be based on the original debt to that one card of $500 (not $1000). I hope that makes sense." 1- To max out rewards. I have 5 different credit cards, one gives me 5% back on gas, another on groceries, another on Amazon, another at restaurants and another 2% on everything else. If I had only one card, I would be missing out on a lot of rewards. Of course, you have to remember to use the right card for the right purchase. 2- To increase your credit limit. One card can give you a credit limit of $5,000, but if you have 4 of them with the same limits, you have increased your purchasing power to $20,000. This helps improve your credit score. Of course, it's never a good idea to owe $20,000 in credit card debt. I keep one card just for monthly bills (power company,car loan, etc.).  This one is unlikely to get hacked so I won't have to go change the credit card information on my monthly bills.  I pay the credit card from my bank account.  I just don't want a lot of businesses with direct access to my bank account. Someone mentioned sign up bonuses but only mentioned dollar values. You might get points, sweet, sweet airline points :) which some might find compelling enough to churn cards so they always have a few open. I got a Capital One credit card because they don't charge a fee for transactions in foreign currencies. So I only use it when I travel abroad. At home, I use 3 different credit cards, each offering different types of rewards (cash back on gas, movies, restaurants, online shopping etc). There is almost no reason to get a second credit card - this is a very good arrangement for your creditor but not for you. Credit cards have high rates of interest which you have to pay unless you pay the credit off every month. Therefore, increasing your total credit capacity should not be your concern.  Since internet technology lets you pay off your balance in minutes online, there is no reason to have multiple cards in order to avoid running out of a balance. If, on the other hand, you do not pay your existing card off every month, than getting another card can be even more dangerous, since you're increasing the amount of debt you take on. I'd say at most it would make sense for you to grab a basic VISA, since most places do not accept AMEX. I would also considering cancelling the AMEX if you get the VISA, for reasons above.
My recommendation is to not ask for a credit increase, but just increase the utilization of one card if you have multiple cards, and decrease the utilization of the others, and continue paying off all cards in full each month.  In a  few months, you  will likely be offered a credit increase by the card that is getting increased use.  The card company that is getting the extra business knows that you are paying off big bills each month and keeping your account in good standing, and they will likely offer you a credit increase all by themselves because they want to keep your business.  If no offer is forthcoming, you can call the card company and ask for a credit increase. If they refuse, tell them that you will be charging very little on the card in the future  (or even canceling your card, though that will cause a hit on your credit score) because of their refusal, and switch your high volume to a different card. If you are planning to get new cards, it is probably best to open the accounts as soon as possible to start establishing a history of good credit use. You might also wish to open multiple accounts so that future lines will have less of an impact on your average age of open credit lines. Since you will probably have higher interest rates it is also advisable never to carry a balance on any of your newly acquired cards. This will prevent a recurrence of the problems you are now trying to recover from. Because even if you won the lottery, without at least some credit history you will have trouble renting cars and hotel rooms. I learned about the importance, and limitations of credit history when, in the 90's, I switched from using credit cards to doing everything with a debit card and checks purely for convenience. Eventually, my unused credit cards were not renewed. At that point in my life I had saved a lot and had high liquidity. I even bought new autos every 5 years with cash. Then, last decade, I found it increasingly hard to rent cars and sometimes even a hotel rooms with a debit card even though I would say they could precharge whatever they thought necessary to cover any expenses I might run. I started investigating why and found out that hotels and car rentals saw having a credit card as a proxy for low risk that you would damage the car or hotel room and not pay. So then I researched credit cards, credit reports, and how they worked. They have nothing about any savings, investments, or bank accounts you have. I had no idea this was the case. And, since I hadn't had cards or bought anything on credit in over 10 years there were no records in my credit files. Old, closed accounts had fallen off after 10 years. So, I opened a couple of secured credit cards with the highest security deposit allowed. They unsecured after a year or so. Then, I added several rewards cards. I use them instead of a debit card and always pay in full and they provide some cash back so I save money compared to just using a debit card. After 4 years my credit score has gone to 800+ even though I have never carried any debt and use the cards as if they were debit cards. I was very foolish to have stopped using credit cards 20 years ago but just had no idea of the importance of an established credit history. And note that establishing a great credit history does not require that you borrow money or take out loans for anything. just get credit cards and pay them in full each month. Also, unless I missed it and someone already mentioned it, do keep in mind the impact of these credit cards balances on your credit score. Over roughly 75% usage on a given credit account reflects badly on your score and has a pretty large impact on how your worthiness is calculated. It gives the impression that you are a person that lives month to month on cards, etc. If you could get both cards down to reasonable balances to where you could begin paying on them regularly and work them down over time, that will not only look incredible for your credit report but also immediately begin making your credit worthiness begin to raise due to the fact that you will not have accounts that (I'm assuming here) are at very high usage (over 75% of your total limit.) If you have to get one card knocked out just to get breathing room, and you're boxed in here -- or honestly even if the mental stress is causing you incredible hardship day to day, then I suppose blow one card out of the water, reassess and start getting to work on that second card. I hope this helped, I'm no expert, but I have had every kind of luck with credit cards and accounts you could think of, so I can only give my experience from the rubber-meets-the-road perspective. Good luck! For those who are looking to improve credit for the sake of being able to obtain future credit on better terms, I think a rewards credit card is the best way to do that. I recommend that you only use as many cards as you need to gain the best rewards. I have one card that gives 6% back on grocery purchases, and I have another card that gives 4% back on [petrol] and 2% back on dining out. Both of those cards give only 1% back on all other purchases, so I use a third card that gives 1.5% back across the board for my other purchases. I pay all of the cards in full each month. If there was a card that didn't give me an advantage in making my purchases, I wouldn't own it. I'm generally frugal, so I know that there is no psychological disadvantage to paying with a card. You have to consider your own spending discipline when deciding whether paying with cards is an advantage for you. In the end, you should only use debt when you can pay low interest rates (or as in the case of the cards above, no interest at all). In the case of the low interest debt, it should be allowing you to make an investment that will pay you more by having it sooner than the cost of interest. You might need a car to get to work, but you probably don't need a new car. Borrow as little as you can and repay your loans as quickly as you can. Debt can be a tool for your advantage, but only if used wisely. Don't be lured in by the temptation of something new and shiny now that you can pay for later. I'm not sure if you are including the use of credit cards in the intent of your quesiton.  However, I will give you some good reasons I use them even when I can pay cash: 1) I get an interest free loan for almost 30 days as long as I don't carry balances. 2) I get a statement detailing where I am spending my money that is helpful for budgeting. I'd never keep track to this level of detail if I were using cash. 3) Many cards offer reward programs that can be used for cash back. 4) It helps maintain my credit rating for those times I NEED to buy something and pay it off over time (car, house, etc.) 5) Not so much an issue for me personally, but for people that live paycheck to paycheck, it might help to time your cash outflows to match up with your inflows. For a business, I think it is mostly a cash flow issue. That is, in a lot of B2B type businesses customers can pay very slowly (managing their own cash flows). So your revenue can sometimes lag quite a bit behind the expenses that were associated with them (e.g payroll). A business line of credit can smooth out the cash flow, especially for companies that don't have a lot of cash reserves. Debit cards do not earn the bank any interest from you whereas credit cards do, so they want to give incentive to use credit over debit. "The following is based on my Experian credit scoring feedback and experience here in the UK over many years.  (And for further information I currently hold a credit score of 999, the highest possible, with 6 credit cards.)  Now I'm assuming that while there may be some differences in particulars in your case due to the difference in locality nevertheless the below should hopefully provide some broad guidelines and reasonable conclusion in your situation: Having a large number of active credit accounts may be seen as a negative.  However having a large number of settled accounts should on the contrary have a positive effect on your score.  As you keep your accounts mostly settled, I think having another card will not be to your detriment and should in time be beneficial. A large total credit balance outstanding may count against you.  (But see the next point.)   Having your total outstanding debt on all credit accounts be a smaller proportion of your total available credit, counts in your favour.  This means having more cards for the same amount of credit in use, is net-net in your favour.  It also has the effect of making even larger outstanding credit balances (as in point 2) to be a lower percentage of your total available credit, and consequently will indicate lower risk to lenders.   It appears from my experience the higher the highest credit limit on a single card you are issued (and are managing responsibly e.g. either paid off or used responsibly) the better. Needless to say, any late payments count against you.  The best thing to do then is to set up a direct debit for the minimum amount to be paid like clockwork every month.  Lenders really like consistent payers. :) New credit accounts initially will count against you for a while.  But as the accounts age and are managed responsibly or settled they will eventually count in your favour and increase your score. Making many credit applications in a short space of time may count against you as you may be seen to be credit reliant.  Conclusion: On balance I would say get the other card.  Your credit score might be slightly lower for a couple of months but eventually it will be to your benefit as per the above.    Having another card also means more flexibility and more more options if you do end up with a credit balance that you want to finance and pay off over a period as cheaply as possible.   In the UK the credit card companies are falling over themselves trying to offer one ""interest free"" or 0% ""balance transfer"" offers.  Of course they're not truly 0% since you typically have to pay a ""transfer fee"" of a couple of percent. Still, this can be quite cheap credit, much much cheaper than the headline APR rates actually associated with the cards.  The catch is that any additional spending on such cards are paid off first (and attract interest at the normal rate until paid off).  Usually also if you miss a payment the interest rate reverts to the normal rate.  But these pitfalls are easily avoided (pay by direct debit and don't use card you've got a special deal on for day to day expenses.) So, having more cards available is then very useful because you then have choice.  You can roll expensive debts to the cheapest lender at your disposal for as long as they'll offer, and then simply not use that card for any purchases (while paying off the balance as cheaply as possible), meanwhile using another card for day to day expenses." You have 3 assumptions about the use of credit cards for all your purchases: 1) May be a moot point. At current interest rates that will not make much of a difference. If somebody links their card to a checking account that doesn't pay any interest there will be no additional interest earned. If the rate on their account is <1% they may make a couple of dollars a month. 2) Make sure that the card delivers on the benefits you expect. Don't select a card with an annual fee. Cash is better than miles for most people. Also make sure the best earnings aren't from only shopping at one gas station or one store. You might not make as much as you expect. Especially if the gas station is generally the most expensive in the area. Sometimes the maximum cash back is only for a limited time, or only after you have charged thousands of dollars that year. 3) It can have a positive impact on your credit rating. I have also found that the use of the credit card does minimize the chances of accidentally overdrawing the linked account. There is only one big scheduled withdraw a month, instead of dozens of unscheduled ones. There is some evidence that by disconnecting the drop in balance from the purchase, people spend more. They say I am getting X% back, but then are shocked when they see the monthly bill. "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 ;-)" Another thing to factor in are deals provided by banks. In general, banks care about new customers more than their existing customers. Hence they explicitly restrict the best deals on credit cards, savings accounts, etc, to new customers only. (Of course, there are occasionally good deals for existing customers, and some banks choose not to discriminate.) If you have many different bank accounts, you are making yourself unavailable for switching bonuses and introductory rates. Do you need it? It doesn't sound like it - you seem to be able to manage with just the cards you have.  Will it hurt anything? Probably not either, unless it entices you to spend more than you make.  Another downside might be that you would spend more than you normally would just to have activity on every card. So all in all, I don't see much upside. pay off one of the cards completely. there are several reasons why: Deposit it in a business savings account. The following below show you some options you can choose from. Next you can invest it in the market i.e. shares, bonds etc. If you have a more risky side, can go for peer to peer lending. If you are feeling really lucky and want to invest in the long term, then buy a property as a buy-to-let landlord. There are loads of options, you only need to explore. Under what conditions did you move? My favourite method of judging prices objectively comes from concepts written in Your Money or Your Life by Joe Dominguez. Essentially it normalizes money spent by making you figure out how much an item costs with respect to the number of hours you needed to work to afford it. I prefer that method versus comparing with others since it is objective for yourself and looks beyond just the bare prices.