Should I open a credit card when I turn 18 just to start a credit score?
Yes, it is a very good idea to start your credit history early.  It sounds like you have a good understanding of the appropriate use of credit, as a substitute for cash rather than a supplement to income.  As long as you keep your expenses under control and pay off your card each month, I see no problems with the idea. Try to find a card with no annual fees, a low interest rate if possible (which will be difficult at your age), and with some form of rewards such as cash back.  Look for a reputable issuing bank, and keep the account open even after you get a new card down the road.  Your credit score is positively correlated with having an account open for a long time, having a good credit usage to credit limit ratio, and having accounts in good standing and paid on time. The length of time you have established credit does improve your credit score in the long run. As long as you can avoid paying interest, you might see if you can get a card with cash back rewards. I have one from Citi that sends me a $50 check every so often when I have enough rewards built up. Yes, as long as you are responsible with the payments and treat it as a cash substitute, and not a loan. I waited until I was 21 to apply for my first credit card, which gave me a later start to my credit history. That led to an embarrassing credit rejection when I went to buy some furniture after I graduated college. You'd think $700 split into three interest-free payments wouldn't be too big of a risk, but I was rejected since my credit history was only 4 months long, even though I had zero late payments.  So I ended up paying cash for the furniture instead, but it was still a horrible feeling when the sales rep came back to me and quietly told me my credit application had been denied. Not only should you do this, you should tell your friends to do it too. Especially if a parent comes in to the bank with the child, banks fall over themselves to provide a card to someone whose only income is allowance. Really. Later, if you're 21 and your car broke and you don't get paid for another 11 days, NOBODY will lend you the money (or those money mart places that charge 300% a year will) to fix it. Never mind score (and yes for sure having a good score will be a result, and a good one) just having the card for emergencies makes all the difference to your early twenties. My kids have several friends who now can't get credit cards (some are students, some are underemployed) and end up missing paid days of work due to car troubles they can't pay to fix, or using those payday lenders, or other things that keep you poor. Get one while you can. Using it sensibly means you will have a great credit score in a decade or so, but just plain having it is worth more than you can know if you're not 18 yet. No, don't open a credit card. Get used to paying cash for everything from the beginning. The best situation you can be in is not to have any credit. When it comes time to buy a house, put down %30 percent and your 0 credit score won't matter. This will keep you within your means, and, with governments gathering more and more data, help preserve your anonimity. "I also feel it's important to NOT get a credit card. I'm in my mid 30's and have had credit cards since I was 20, as has everyone I know. Every single one of those people, with the exception of my dad, is currently carrying some amount of credit card debt - almost always in the thousands of dollars.  Here is the essential problem with credit cards. Everyone sets out with good intentions, to use the credit card like a debit card, and pay charges off before interest accrues. However, almost no-one has the discipline to remember to do this, and a balance quickly builds up on the card. Also, it's extremely easy to prioritize other bill payments before credit card payments, resulting in a balance building up on the card.  It's almost magical how quickly a balance will build up on a credit card. Ultimately, they are simply too convenient, too tempting for most human beings. The world, and especially the North American world, is in a massive debt crisis. It is very easy to borrow money these days, and our culture is at the point where ""buy now pay later"" is an accepted practice.  Now that I have young children, I will be teaching them the golden rule of ""don't buy something until you have cash to pay for it in full!"" It sounds like an over simplification but this one rule will save you an incredible amount of financial grief over time." "I will disagree with the other answers. The idea that there is some to establish a ""credit history"" is largely a myth propagated by loaners who see it as positive propaganda to increase the numbers of their prospective customers. You will find some people who claim they were rejected for a card because they had no ""credit history,"" but in every case what these people are not telling you is they also had no income (were students, house wives, or others with no steady income). Anyone who has income can get a credit card or other line of credit regardless of their ""credit history."" Even people who have gone bankrupt can get credit cards if they have proven income. If your answer to this is that ""you have no income, but still want a credit card"", I would advise you to re-read that sentence several times and think carefully about it. I have never had a credit card and never missed having one, except when trying to rent cars which was somewhat complex and annoying to do in the 2005-2010 time period without a credit card. Credit cards have a number of disadvantages: I definitely agree with those who will tell you credit cards are convenient, they are, but for someone who wants to be financially prudent and build wealth they are unnecessary and unwise. If you don't believe me, read ""The Total Money Makeover"" by David Ramsey, one of the most famous and best-selling books ever written on personal finance. He actually will give you much better and detailed reasons to avoid CCs than me. After all, who am I, just some dumb rich schmuck with lots of money and no debt and a happy life. Comment on Culture I think it is pretty funny we have a lot of spendthrift Americans in this thread basically telling the OP to get lots of credit cards as soon as possible. If you asked the same question in Japan you would get completely different answers and votes. In Japan its hard to even use credit cards. The  people there are much more responsible financially than Americans; the average Japanese person has much higher wealth than a person with the same income in the United States. One of the reasons for this, among many, is that the average Japanese person does not use credit cards. A Japanese person, if you translated this question for them, would think the whole thing a typical example of how foolish Americans are." Assuming I only use it to buy things I can afford (which I trust   myself to do), essentially treating it as a debit card, is this a good   idea? This is definitely a good idea. From my own experience, before I got my first credit card through my local bank (age 18), I tired to apply for a card that has cash back rewards and was rejected because I didn't have any credit history. After I had the card from my bank for 6 months, I applied for this Capital One card that I've had ever since. "I want to recommend an exercise: Find all the people nearby who you can talk to in less than 24 hours about credit cards: Your family, whoever lives with you, and friends. Now, ask each of them ""what's the worst situation you've gotten yourself into with a credit card?"" Personally, the ratio of people who I asked who had credit cards to the ratio of people with horror stories about how credit cards screwed up their credit was nearly 1:1.  Pretty much, only one of them had managed to avoid the trap that credit cards created (that sole exception had worked for the government at a high paying job and was now retired with adult children and a lucrative pension).  Because it's trivially easy over-extend yourself, as a result of how credit cards work (if you had the cash at any second, you would have no need for the credit). But do your own straw poll, and then see what the experience of people around you has been.  And if there's a lot more bad than good out there, then ask yourself ""am I somehow more fiscally responsible than all of these people?""." This is a good idea, but it will barely affect your credit score at all.  Credit cards, while a good tool to use for giving a minor boost to your credit score and for purchasing things while also building up rewards with those purchases, aren't very good for building credit.   This is because when banks calculate your credit report, they look at your long-term credit history, and weigh larger, longer-term debt much higher than short-term debt that you pay off right away.  While having your credit card is better than nothing, it's a relatively small drop in the pond when it comes to credit.   I would still recommend getting a credit card though - it will, if you haven't already started paying off a debt like a student or car loan, give you a credit identity and rewards depending on the credit card you choose.  But if you do, do not ever let yourself fall into delinquency.  Failing to pay off loans will damage your credit score.  So if you do plan to get a credit card, it is much better to do as you've said and pay it all off as soon as possible.   Edit:  In addition to the above, using a credit card has the added benefit of having greater security over Debit cards, and ensures that your own money won't be stolen (though you will still have to report a fraudulent charge). Definitely not.  Credit cards only exist to suck you into the soulless corporate system.  What you want to remember here is that you can't trust banks, so you'll want to convert all your savings into some durable asset, say, bitcoins for example, and then hoard them like Smaug until after the Fall.
My first thought is get a Capital One Secured Card. Use it for small things and pay it all off when you get paid. It will build your credit and after six months of solid use your credit limit can go up and you can be eligible for a better non-secured card (not that you need to get one). It's great for starting or rebuilding credit. You could conceivably open a few accounts.  For example, a bank account and a credit card account.  Then the accounts will be older when evaluated for credit when you return.  This would look better than opening fresh accounts later.  But don't expect a big difference in score.  And you'll be stuck with those accounts in the future, otherwise you lose the benefit.  I wouldn't worry about maintaining balances now.  You can wait until you come back.  Occasional purchases may be helpful.   What they really want to see is a regular and sustained use of accounts without missing payments or overextending.  But if you're not going to be here, you can't really do that.  Note that good credit scores are based on seven years of data, preferably a lot of it.  Opening a few accounts can't substitute for that, even if you put balances on them.   If you're not here, you won't be paying rent or utilities.  You won't have a proven payment history on the most common accounts.   If money were no object, you could do something like purchase a house or condo that you could rent out, utilities included.  That would build up a payment history.  But if money were no object, you probably wouldn't be worried about your credit score.  It's more practical to just live normally and be sure that you always live within your means so that you don't experience negative credit events.   You might think about why you want a good credit score.  Is it to borrow a lot of money?  You might be able to spend money to achieve that.  Is it to save money on future borrowing?  If it costs money now, how much will you save total?   Opening accounts now that you won't really use until you return is about the only thing that you can do that won't cost you money.  Perhaps put a balance on the bank account--at least you'll get that money back some day.  Maintaining a balance on the credit cards would cost you money in interest charges, and you don't really benefit from an improved credit score until you use your credit.  So the interest fees aren't really buying you anything. Absolutely. It's the way credit is calculated. The most important things here are credit utilization (how much of your open credit you're using, the less the better for your score) and and length of open credit. The longer you've had a credit card, the more it helps your score. If you use your card and pay it off before the bill comes, the credit card company still knows you're using the card and won't close it. I recommend you download credit karma so you can track your score and learn more about how credit is calculated. My son who is now 21 has never needed me to cosign on a loan for him and I did not need to establish any sort of credit rating for him to establish his own credit.  One thing I would suggest is ditch the bank and use a credit union. I have used one for many years and opened an account there for my son as soon as he got his first job. He was able to get a debit card to start which doesn't build credit score but establishes his account work the credit union. He was able to get his first credit card through the same credit union without falling work the bureaucratic BS that comes with dealing with a large bank. His interest rate may be a bit higher due to his lack of credit score initially but because we taught him about finance it isn't really relevant because he doesn't carry a balance. He has also been able to get a student loan without needing a cosigner so he can attend college.  The idea that one needs to have a credit score established before being an adult is a fallacy. Like my son, I started my credit on my own and have never needed a cosigner whether it was my first credit card at 17 (the credit union probably shouldn't have done that since i wasn't old enough to be legally bound), my first car at 18 or my first home at 22. For both my son and I, knowing how to use credit responsibly was far more valuable than having a credit score early. Before your children are 18 opening credit accounts with them as the primary account holder can be problematic because they aren't old enough to be legally liable for the debt. Using them as a cosigner is even more problematic for the same reason. Each financial institution will have their own rules and I certainly don't know them all.  For what you are proposing I would suggest a small line of credit with a credit union. Being small and locally controlled you will probably find that you have the best luck there. In general, minors cannot enter into legally binding contracts --   which is what credit accounts are -- so an individually held card is   probably not an option for you right now. You will not be approved for a credit card because you are minor. The only option credit card wise for you is for your parents to add you on as an authorized user onto their accounts. The upside is that you and your parents can work out a monthly payment for the amount you spend on your equipment, the downside is that if your parents don't pay their credit card bill, your credit score/report can be negatively affected. (This also depends on the bank, however, all the banks I bank with report monthly payment activities on authorized users' credit reports as well. There might be a bank that doesn't.)  In terms of credit cards, there is nothing you can do. What you could do as the comments have suggested is either save up money for the equipment you want, or buy something cheaper. Please do not conflate number of credit cards with amount of debt. Consider two scenarios, The latter scenario yields much better credit scoring. Many recommendation sources suggest the following, Although your credit score seems very important, it is only important when you have financial interactions (such as applying for credit or services) where the other party makes decisions based upon the score. You should only obtain loans and credit when you want and it makes sense based upon your needs; choosing to live your life to serve credit scoring agencies may not be your happy place. "The comments section to Dilip's reply is overflowing.  First - the OP (Graphth) is correct in that credit scoring has become a game. A series of data points that predicts default probability, but of course, offers little chance to explain why you applied for 3 loans (all refinancing to save money on home or rentals) got new credit cards (to get better rewards) and have your average time with accounts drop like a rock (well, I canceled the old cards).  The data doesn't dig that deep.  To discuss the ""Spend More With Plastic?"" phenomenon - I have no skin in the game, I don't sell credit card services. So if the answer is yes, you spend more with cards, I'll accept that. Here's my issue - The studies are all contrived. Give college students $10 cash and $10 gift cards and send them into the cafeteria. Cute, but it produces no meaningful data. I can tell you that when I give my 13yr old $20 cash, it gets spent very wisely. A $20 Starbucks card, and she's treating friends and family to lattes. No study needed, the result is immediate and obvious. Any study worth looking at would first separate the population into two groups, those who pay in full each month and those who carry a balance. Then these two groups would need to be subdivided to study their behavior if they went all cash. Not a simply survey, and not cheap to get a study of the number of people you need for meaningful data. I've read quotes where The David claimed that card users spend 10% more than cash users. While I accept that Graphth's concern is valid, that he may spend more with cards than cash, there is no study (that I can find) which correlates to a percentage result as all studies appear to be contrived with small amounts to spend.  As far as playing the game goes - I can charge gas, my cable bill, and a few other things whose dollar amounts can't change regardless. (Unless you're convinced I'll gas up and go joy-riding) Last - I'd love to see any link in the comments to a meaningful study. Quotes where conclusions are stated but no data or methodology don't add much to the discussion.  Edit - Do You Spend More with Cash or Credit? is an article by a fellow Personal Finance Blogger. His conclusion is subjective of course, but along the same path that I'm on with this analysis." In the US, money talks and bullshit walks. You can skip any credit history requirement if you demonstrate your ability to pay in a very obvious way. Credit history is just a standardized way of weeding out people that cannot reliably pay, instead of having to listen to an individual's excuses about how the bank overdrafted their account five times while they were waiting for their friend to pay them back for bubble gum. If you can show up with a wad of cash, you can get the car, or the apartment, or the bank account without the troubles of everyone else.  But you can begin building credit with a secured credit card pretty easily. This will be useful for things like utilities and sometimes jobs. Also, banks won't be opposed to giving you credit if you have a lot of money in an account with them. You should be able to maintain an exemption from all socioeconomic problems in the United States, solely due to your experience with money and assets. "Two factors that positively your credit score are the number of open accounts you have in good standing, and the average age of the accounts. The more accounts you have in good standing, the more likely you seem to pay back what you borrow from new creditors. The older the average age of the accounts, the more you seem like an experienced borrower who has had many years of successful credit activity. Closing them would lower the total number of accounts in good standing you have, and would also likely lower the average account age (unless you've recently opened them). To ""simplify the number of cards you have"", pick the one or two you would consider cancelling (worst rewards/benefits, highest yearly fee, etc.) and just don't keep them in your wallet anymore. You don't have to worry about paying them off every month (because you don't buy anything with them) and you still get the credit score benefits of having the accounts open." Other answers here cover some of the basics, but this is also a great time to start establishing a credit history and developing good financial habits to carry throughout your life. In addition to opening a free checking account with the local credit union, establish an overdraft line of credit on that account. Never close this account or this line of credit as it will work to increase the average age of your accounts when you apply for credit later in life. If you are disciplined with your use of credit cards, you may also want to apply for a low limit credit card through the same credit union for the same purpose as above. Never carry a balance on this card, but make minor purchases with it each month, never more than 20% of the balance, maybe just buy gas with it. Start tracking all of your spending and make a monthly budget. There are a lot of online tools that make this very easy. Establishing the habit now will help you make informed financial decisions in the future. Open a Roth IRA and put at least 10% of your money away for retirement. In the future your income may increase enough to put you in the 25% tax bracket. If that ever happens, open a Regular IRA and put the money there instead. Also when you have employers that offer 401k matching do the same thing with a Roth 401k account. Keep your money invested in a low cost index fund. I think you are interpreting their recommended numbers incorrectly.  They are not suggesting that you get 13-21 credit cards, they are saying that your score could get 13-21 points higher based on having a large number of credit cards and loans. Unfortunately, the exact formula for calculating your credit score is not known, so its hard to directly answer the question.  But I wouldn't go opening 22+ credit cards just to get this part of the number higher! You should. The impact on the credit score is small, and probably not worth the money of the annual fee. I would only change that if you plan to get a mortgage or car loan the next month - then wait until afterwards. For instance and to give a comparison to the US - in Austria, almost everybody gets a credit card (without a credit history (e.g. a young person) / with a bad credit history & with a good credit history).  The credit history is in the USA much more important than in Austria. In future, the way to assess a credit history will change due to analysis of social networks for instance. This can be considered in addition to traditional scoring procedures. Is your credit history/score like a criminal record? Nope. I mean is it always with you?  Not really cause a criminal record will be retained on a central storage (to state it abstract) and a credit history can be calculated by private companies. Also, are there other ways to get credit cards besides with a bank? That depends on the country. In Austria, yes. "There are two factors in your credit score that may be affected. The first is payment history. Lenders like to see that you pay your bills, which is the most straightforward part of credit scores IMO. If you've actually been paying your bills on time, though, then this should still be fine. The second factor is the average age of your open accounts. Longer is considered better here because it means you have a history of paying your bills, and you aren't applying for a bunch of credit recently (in which case you may be taking on too much and will have difficulties paying them). If this card is closed, then it will no longer count for this calculation. If you don't have any other open credit accounts, then that means as soon as you open another one, your average age will be one day, and it will take a long time to get it to ""good"" levels; if you have other matured accounts, then those will balance out any new accounts so you don't get hit as much. Incidentally, this is one of the reasons why it's good to get cards without yearly fees, because you can keep them open for a long time even if you switch to using a different card primarily." A credit card can be a long running line of credit that will help to boost your FICO score.  However if you have student loans, a mortgage, or car payments those will work just as well. If you ever get to the point where you don't have any recent lines of credit, this may eventually end up hurting your score, but until then you really don't need any extras.