Skip to content

Credit Cards: Tool, Not Trap

Make a card pay you: protection, interest-free days, rewards. Only if you pay in full.

Play lesson 1 free

How to use a credit card safely: Section 75 protection, interest-free days and rewards, and why it only works if you pay the balance in full every month.

  1. 1

    How credit scores really work

    Free●○○○○ difficulty

    There's no single credit score: lenders read your credit file and use their own rules. Your one action: check your credit file for free with at least one agency and look for anything that's wrong.

  2. 2

    Building credit safely

    Free with a code●○○○○ difficulty

    Build credit with boring habits: electoral roll, a small limit used lightly, paid in full by direct debit, few applications. Your one action: check you're on the electoral roll at your current address.

  3. 3

    Utilisation: how full is the card?

    Free with a code●●○○○ difficulty

    Utilisation is the share of your limit you use; lower generally looks better, and a common rule of thumb is to stay well under about 30%. Your one action: work out your utilisation from your last statement (balance ÷ limit).

  4. 4

    Interest-free days: free time, not free money

    Free with a code●●○○○ difficulty

    Clear the full statement balance by the due date and purchases cost no interest, for up to about 56 days. Cash withdrawals cost from day one. Your one action: find your card's statement date and due date and write them down.

  5. 5

    Full balance, by direct debit

    Free with a code●●○○○ difficulty

    Set the card's direct debit to the full statement balance and purchases never cost interest. Minimum-only can take decades. Your one action: check what your card's direct debit is set to, and change it to full balance if you can afford to.

  6. 6

    Section 75: the bodyguard in your wallet

    Free with a code●●●○○ difficulty

    Section 75 makes your credit card provider jointly liable for single items over £100 and up to £30,000; debit cards have chargeback. Your one action: before your next planned big purchase, note which card you'd use and what protection it gives.

  7. 7

    Rewards and cashback: who's really paying?

    Free with a code●●●○○ difficulty

    Rewards and cashback only pay you when it's spending you'd do anyway and the balance is cleared in full. Your one action: add up last month's card interest and fees and compare them with the rewards you earned.

  8. 8

    0% purchase cards: read the clock

    Free with a code●●●○○ difficulty

    A 0% purchase deal is a countdown: pay at least the minimum, and divide the balance by the months left to be clear before it ends. Your one action: if you have a 0% deal, put the end date in your calendar with the monthly amount needed.

  9. 9

    Balance transfers: moving, not vanishing

    Free with a code●●●●○ difficulty

    A balance transfer moves debt to a cheaper deal for a while, for a fee; it only helps if you stop adding debt and clear it before the 0% ends. Your one action: if you carry a balance, write down its APR, the amount and your monthly payment, the starting point for any plan.

  10. 10

    When a card costs you vs pays you

    Free with a code●●●●○ difficulty

    A card pays you only when the balance is cleared in full and you use its features; carry a balance and it costs you. Your one action: write your card a one-line job description, like 'bills only, cleared in full by direct debit'.

  11. 11

    Stuck paying interest? Get out early

    Free with a code●●●●○ difficulty

    Persistent debt is common and fixable: providers must step in after 18 months, and free help exists. Your one action: if your balance barely moves, contact your card provider or a free debt charity this week.

  12. 👑

    BOSS: Card Master or Card Mastered?

    Free with a code●●●●● difficulty

    A credit card is a tool when you use its features and clear it in full; it's a trap when the balance carries over. Your one action: check every card you have is on a full-balance direct debit, or has a written payoff plan.

Credit Cards: Tool, Not Trap: quick answers

Mo's app score dropped 20 points this month. What does that actually tell him?

Something changed on his file, so read the file itself. Right. Maybe a higher balance, a new search or a missed payment. The file shows which, and if it's wrong he can ask for a fix.

Browse the whole money library or play the free money games.