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.
Most business credit cards do not report to the personal credit report unless the person pays the card late. Given that fact, any debt carried on these cards does not hurt the credit score if it is not reported. You can carry credit card debt on these cards without hurting your credit score. Just apply for business credit cards now to start building this segment of your credit. 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! Patience is the key here, I hate to say! There are five factors to FICO credit scores:  Payment history is adversely affected by late payments - so always pay on time, otherwise your report will be haunted for seven years! 👻 Credit utilization has to do with how much of your available credit is currently in use - lower is better, but 0% isn't good either because they want to see that you're using credit. 10% or less is a good goal, and try to keep any single card balance to 30% or less when its statement close date rolls around. Credit history is based on the average age of all of your accounts, cards or otherwise, the older the better. Don't close either of your other cards (because that would cause your average account age to fall), and make sure to use the store card at least occasionally, because lenders sometimes decide to close unused lines of credit. Credit mix has to do with the different types of credit you hold and is why your bank's website suggested taking out a loan. It also has to do with the number of accounts overall; I've never found a satisfactory answer for what the sweet spot is, but I suspect it's in the 6-12 range? You wouldn't want to get several new ones at the same time because... New credit is affected by the credit inquiries (hard pulls) that occur when you apply for new cards or loans. Inquiries stay on your report for two years before falling off. This is almost certainly where your score dropped. You also mentioned not knowing if some hospital bills are still affecting your score. You'll want to review your credit reports and find out, plus checking your credit reports regularly is a really great habit to get into because errors (and fraud) can and do happen. There are three credit reporting agencies: Experian, Equifax, and TransUnion, and you'll want to review all three. You can get one free report from each of them every year: https://www.usa.gov/credit-reports It can take a couple of months for a new credit account to show up on your credit report, so your score should recover and go even higher once that happens. Sit tight, as annoying as that is! Credit cards are meant to be used so generally it doesn't hurt your credit score to use them.  To top it off you even get an interest grace period so you don't have to rush home and pay balances as soon as they're charged.   In general you accrue charges during your statement period, we'll call it September 1 through September 30.  The statement due date is something like 20 days after the close of the statement period, so we'll call it October 20.  As long as you habitually pay your entire statement balance by the due date you will never pay interest.  You charge your laptop on September 3, it shows up on your statement as $1,300, you pay $1,300 on October 18, you pay no interest. However, if you pay $1,000 on October 18 leaving a $300 balance to be carried in to the next statement period (a carried balance) you will pay interest.  Generally interest is calculated based on your average daily balance during the statement period, which is now be the October 1 to October 31 period.  You'll notice that you didn't pay anything until the October 18, that means the entire $1,300 will be included in your average daily balance up to the 18th of the month.  Add to that, anything else you charge on the card now will be included in your average daily balance for interest charge calculation purposes. The moral of the story is, use your card, and pay your entire statement balance before the due date.   Now how much will this impact your credit score?  It's tough to say.  Utilization is not a bad thing until it's a big number.  I've read that 70% utilization and over is really the point at which lenders will raise an eyebrow and under 30% is considered excellent. If you have one card and $1,300 is a significant portion of your available limit, then yes you should probably pay it down quickly.  Spend six or so months using the card and paying it, then call your bank and ask for a credit line increase. That is an opinion.  I don't think so.  Here are some differences: If you use credit responsibly and take the time to make sure the reporting agencies are being accurate, a good report can benefit you.  So that isn't like a criminal record. What is also important to know is that in the United States, a credit report is about you, not for you.  You are the product being sold.  This is, in my opinion, and unfortunate situation but it is what it is.  You will more than likely benefit for keeping a good report, even if you never use credit. There are many credit scores that can be calculated from your report; the score is just a number used to compare and evaluate you on a common set of criteria. If you think about it, that doesn't make sense.  The score is a reflection of how you use credit.  Having and using credit is a commitment.  Your are committing to the lender that you will repay them as agreed. Your choice is who you decide to make agreements with.  I personally find the business practices of my local credit union to be more palatable than the business practices of the national bank I was with.  I chose to use credit provided by the credit union rather than by the bank.  I am careful about where I take auto loans from, and to what extent I can control it, where I take home loans from. Since it is absolutely a commitment, you are personally responsible for making sure that you like who you are making commitments with. Assuming you don't plan on continuing to use the card frequently, the best advice I've heard is to leave them open unless they have an annual fee. Also, leaving it open with a zero balance doesn't help your credit score as much as using it a few times a year (even for small amounts) because it will eventually shift to an inactive state that is less positive for your credit score. In your specific case, I would leave them open unless you have a specific reason for wanting to close them - particularly, unless you feel closing them is necessary for you to not misuse them. The impact on the credit score is not why I say this, though.  Much more important are the two competing real factors: My suggestion would be to take the cards and put them in your file cabinet, or whatever would cause you to not use them.  In fact, you could even cut them up but not close the accounts - I had an account open that I didn't possess a physical card for several years for and didn't use at all, and it stayed open (though it's not guaranteed they'll keep it open for you if you never use it).   In an emergency you could then ask them to send you a new copy of the card very easily.  But, keep them, just in case you need them. Once you have paid off your balances on your balance-carrying cards, then you should consider closing some of them.  Keep enough to be able to live for ~4-6 months (a similar amount to the ideal rainy day fund in savings, basically) and then close others, particularly if you can do so in a way that keeps your average account age reasonably stable. If you don't carry a balance, there is no disadvantage. Merchants pay less for their in-house credit, so there are often incentives for you to use the store card. The perils of opening a credit card hurting your credit score are way overblown in general, if you have good to excellent credit. If you have excellent credit, there is no material effect on your ability to borrow. You'll get knocked down a few points when you open the card, but as long as you're not on a credit application frenzy there isn't an issue.