Is keeping old credit cards and opening new credit cards with high limits and never using an ideal way to boost credit scores?
Problems with your plan (in no particular order) there is a limit, once they have decided that you have enough credit they won't offer any more. If the economy changes (like it did in 2008) they can reduce the limit on existing accounts. If you don't use them, they may decide to close them. Using existing cards will encourage the bank to increase the limit on that card. opening cards can make some lenders nervous. Having a new card close to when you are applying for a mortgage or a car loan can make them less likely to lend you the max. You have to decide: Are you trying to buildup your credit limit? or your credit score? I disagree with the reply.   Your both impressions are correct. -   Do not close old credit cards because they keep your credit rating high (fico score) -   Also low utilization that credit cards report to credit rating companies, improves your rating. Your plan will work to increase your total credit capacity (good for your credit score) and reduce your utilization (also good).  As mentioned, you will need to be careful to use these cards periodically or they will get closed, but it will work. The question is whether this will help you or not.  In addition to credit capacity and utilization, your credit score looks at things like These factors may hurt you as you continue to open accounts.  You can easily get to the stage where your score is not benefitting much from increased capacity and it is getting hurt a lot by pulls and low average age. BTW you are correct that closing accounts generally hurts your score.  It probably reduces average age, may reduce maximum age, reduces your capacity, and increases your utilization.
Credit scoring has changed since the time of this question (July 2017) and it is now possible that having a high available credit balance can negatively affect your credit score. ... VantageScore will now mark a borrower negatively for having   excessively large credit card limits, on the theory that the person   could run up a high credit card debt quickly. Those who have prime   credit scores may be hurt the most, since they are most likely to have   multiple cards open. But those who like to play the credit card   rewards program points game could be affected as well. source On the face, this appears a sound method to manage long run cumulative interest, but there are some caveats. Maxing out credit cards will destroy your credit rating.  You will receive no more reasonable offers for credit, only shady ones.  Though your credit rating will rise the moment you bring the balance back down to 10%, even with high income, it's easy to overshoot the 8 months, and then a high interest rate kicks in because of the low credit rating. Further, maxing out credit cards will encourage credit card lenders to begin cutting limits and at worse demand early payment. Now, after month 6 hits, your financial payment obligations skyrocket.  A sudden jolt is never easy to manage.  This will increase risk of missing a payment, a disaster for such hair line financing. In short, the probability of decimating your financial structure is high for very little benefit. If you are confident that you can pay off $4,000 in 8 months then simply apply those payments to the student loan directly, cutting out the middle man.  Your creditors will be pleased to see your total liabilities fall at a high rate while your utilization remains small, encouraging them to offer you more credit and lower rates. The ideal credit card utilization rate is 10%, so it would be wise to use that portion to repay the student loans. Building up credit will allow you to use the credit as an auxiliary cushion when financial disaster strikes.  Keeping an excellent credit rating will allow you to finance the largest home possible for your money.  Every percentage point of mortgage interest can mean the difference between a million USD home and a $750,000 one. See if the bank has other credit cards they offer. Many banks have multiple ones: some cards have great benefits, others do not; some cards have high rates, some do not; some cards are secured, some do not.  If they have a card that you like ask them to switch you to the card you want. They should be able to do so very easily. Your card number will change, but they will treat it is a replacement so that your credit score will not take a hit during the switch. It may be possible to get them to waive the annual fee, but most won't because each card type they offer are separate products so they only allow you to pick one of their options. If they don't have a card to your liking apply for a card from anther bank that has the benefits and annual fees (zero) that you are looking for. It may be that the new card will start with a lower limit, but it will increase over time, especially as you shift more of your business to the new card. When you cancel the old card before the next year rolls around you will take a small short hit to your credit score, but that is ok. The first thing I assess when looking at new credit cards is whether it has no annual fee, the second thing I look at is how long the interest free period is. I always pay my credit card off in full just before the due date. Any rewards program is a bonus. My main credit card is with CBA, I have a credit limit of $20K and pay no annual fee. I get a bonus point for every $ I spend on it, for which I exchange for store gift cards to help with my everyday spending. Approximately 3500 point would get me a $25 gift card. But my main reward with the card is the interest I save by keeping my own money in a Home Loan Offset account whilst I spend with the Bank's money. Then I pay the full amount off by the due date so I do not pay any interest on the credit card. I only use my credit cards for purchases I would usually make anyway and to pay bills, so my spending would be the same with or without a credit card. I can usually save over $500 each year off my Home Loan interest and get about $350 worth of gift cards each year. If I didn't have any Home Loans then I would keep my money in a high interest depost account so I would be increasing my interest payments each year. Sure you can probably get credit cards with more generous rewards programs, but how much are you paying each year in annual fees, and if you don't have an interest free period and you don't pay off all the amount due each month how much are you paying in interest on the card? This is what you need to way up when looking at rewards programs on offer. Nothing is for free, well almost nothing ! I would say you are typical.  The way people are able to build their available credit, then subsequently build their average balances is buy building their credit score.  According to FICO your credit score is made up as follows: Given that you had no history, and only new credit you are pretty much lacking in all areas.  What the typical person does, is get a card, pay on it for 6 months and assuming good history will either get an automatic bump; or, they can request a credit limit increase. Credit score has nothing to do with wealth or income.  So even if you had 100K in the bank you would likely still be facing the same issue.  The bank that holds the money might make an exception. It is very easy to see how a college student can build to 2000 or more.  They start out with a $200 balance to a department store and in about 6 months they get a real CC with a 500 balance and one to a second department store.  Given at least a decent payment history, that limit could easily increase above 2500 and there could be more then one card open.   Along the lines of what littleadv says, the companies even welcome some late payments.  The fees are more lucrative and they can bump the interest rate.  All is good as long as the payments are made. Getting students and children involved with credit cards is a goal of the industry.  They can obtain an emotional attachment that goes beyond good business reasoning. I've read multiple times that the way to rebuild the credit score is to get a credit card and then have some minor charges on it every month and have them paid in full every month. Old negative events age and this disciplined activity rebuild the score to some not to horrible levels. Now it's true that it's hard to get reasonably good credit cards when your credit score is poor. Yet it's not necessary to have a good credit card for this case - such things as large credit limit are not needed. All that's needed is a long grace period so that there's no interest between the moment a charge is done and a moment the bill is paid in full at the end of the month. Yes, the card may have rather high interest and rather low credit limit, but it doesn't really matter. I've read once on MSN Money that people are offered credit even while they're in the middle of bankruptcy, so it's not impossible to get a credit card in the described situation. Goes without saying that a lot of discipline will be needed to have all this implemented. "The weird thing is that if you use the credit impact simulators with the credit monitoring services, they show that the impact of paying your credit cards off completely is more negative than carrying a small balance, which doesn't make a great deal of sense, one would think.  From what I can gather, the rationale is that carrying a small balance shows you making payments over time, as opposed to having a zero balance.  This doesn't quite compute with me, but I don't truly understand the inner workings of the scoring models.  To confirm this, I used simulators with both TransUnion and Experian, and both showed this.  I know that it's easy to find people on both sides of this argument, so I can't say which is the best option (certainly whichever side someone falls on is the one they'll argue is the right one! chuckle). In all fairness, your best tool is time.  The effects of your prior bad decisions will lessen over time as they move further away in your history and then disappear altogether.  Obtaining a credit card just because you think you need one is not a compelling argument, by any means.  If you can't rationalize reasons why you need it then maybe you should question the wisdom of such a decision.  If you don't have a particular need for better credit right now, why be in a hurry to take on debt? Whatever the formulas are for calculating credit scores, the specific details are a pretty closely-guarded secret (they're proprietary for starters, plus it theoretically prevents people from ""gaming the system"" for a better score), but if you do enough research online, you can get a pretty good sense of how they work in general. Whatever you do with your credit should be in line with your overall financial goals.  If you want to remain debt-free (at least for now) then having a credit card you can't otherwise justify a need for just introduces temptations which could prove tough to resist (""wants"" quickly turn into ""needs"" when you can put it on a card you pay later), then you're right back in the same place you were earlier in your life. Instead of trying to figure out the ""best strategy"" for a credit card, first ask yourself how necessary it is to you right now in light of your financial objectives, then go from there. I hope this helps. Good luck!" The only drawback is if you spend more than you can with the new limit and end up having to pay interest if you can't pay the balance in full. Other than that, there are no drawbacks to getting a credit increase.  On the flip side, it's actually good for you. It shows that the banks trust you with more credit, and it also decreases your credit utilization ratio (assuming you spend the same).