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Here’s a way to pay less on debt. These cards offer 0% intro APR for up to 18 months.

A low interest credit card saves you money by reducing the cost of debt: When you're paying less in interest, you can pay back what you've borrowed more quickly. A card with a 0% intro APR period will save you the most on interest in the short term. Look for a card with an introductory interest-free period longer than a year. If you tend to carry a balance most months, a card with a low ongoing interest rate will work to your advantage in the long run.

When you’re paying down debt, interest rates matter – a lot. For example, compare the difference between paying down an $18,000 debt on a 21% APR card and a 0% balance transfer card. The latter will typically charge you a one-time fee of 3 to 5% on the balance transferred (or a $5 minimum fee, whichever is greater). Then, you won’t be charged any interest on your transferred balance for the duration of the 0% intro APR period. Using the balance transfer card could save you around $2,599, even after paying a 3% transfer fee of $540, assuming the debt is repaid in full within the 0% intro interest period (in this example case, 18 months). As a heads up, the amount you may qualify to transfer and save depends on a variety of factors including your credit worthiness.