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    How to avoid credit card interest

    Used right, a credit card can cost you nothing in interest. Here is the trick.

    By the Happy Wallets team·Updated June 2026·3 min read

    Pay in full each month

    On purchases, if you clear the full statement balance by the due date you typically pay no interest at all. Carrying even a small balance usually loses that grace period.

    Watch the exceptions

    • Cash withdrawals often charge interest from day one.
    • Balance transfers and money transfers have their own rules.
    • Promotional 0% periods end — know the date.

    Frequently asked questions

    Does a 0% card mean no cost?+
    No interest during the promotional period, but there is often a transfer fee, and interest resumes once it ends.
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