If you’re just starting to use credit — or if you’re trying to recover from past credit problems — a secured credit card can help. They’re similar to other cards, with one exception: Secured credit cards are backed by a savings account at the bank of the creditor.

You can charge up to the amount you have deposited in your savings account, or less if you choose a lower credit limit. Interest is calculated just as it would be on a regular card. And, if you fail to make a payment, creditors may look to your savings account to cover your debt. Just be aware that the creditor will deduct your principal, as well as the applicable penalty fees and charges from your savings account balance. You should qualify later for a non-secured credit card if you use your secured card and repay regularly. If the bank doesn’t offer to upgrade you in six months, ask when you will qualify.

Many banks also offer debit cards as a feature of your checking account. These cards let you pay for purchases directly with money withdrawn from your checking account. Your account balance will be reduced by the amount that you’ve spent. But be careful: Your debit card doesn’t guarantee you won’t overspend, especially if you have overdraft protection on your account.