Is a Balance Transfer Worth It? How to Work Out If You'll Save

By QuidRadar Team · Updated 30 October 2026

A balance transfer can save you hundreds of pounds in interest, but it isn't free. Most deals charge a fee, and the savings only happen if you actually pay the debt down during the 0% period. This guide shows you how to check whether it's worth it in your case.

Key takeaways - A balance transfer is usually worth it if the transfer fee is less than the interest you'd otherwise pay. - At typical card rates, the interest on a balance can be far more than a 3% fee within a few months. - It only works if you stop adding to the debt and clear as much as possible before the deal ends. - Fee-free transfers exist, but usually for shorter periods. - If you're struggling to make minimum payments, get free debt advice instead of more credit.

This is general information, not financial advice.

The basic calculation

  1. Estimate the interest you'd pay if you stayed where you are. Your current card statement should show an interest estimate. As a rough guide, a balance at around 25% APR costs about 2% a month.
  2. Work out the transfer fee: your balance multiplied by the fee percentage.
  3. Compare. If the fee is lower than the interest you'd pay over the same period, the transfer saves you money.

A worked example

You owe £3,000 on a card charging about 25% APR, and you can pay £150 a month.

Stay on your current card: it would take about two years to clear, and you'd pay roughly £750 to £800 in interest, depending on how your issuer calculates it. See How Is Credit Card Interest Calculated? A Simple UK Guide.

Transfer to a 20-month deal with a 1.25% fee: the fee is £37.50, so you owe £3,037.50. At £150 a month you'd have about £40 left at the end, so pay around £152 a month to clear it in time with no interest. Saving: roughly £750.

Transfer to a 36-month deal with a 3.10% fee: the fee is £93. At £150 a month you'd clear it in about 21 months, well within the deal. Saving: roughly £700. You'd pay more in fees than you need to, but you'd have extra time as a buffer.

Transfer to a 12-month fee-free deal: no fee, but at £150 a month you'd still owe about £1,200 when it ends, which would then be charged interest. You'd need £250 a month to clear it in time.

These figures are simplified and assume you make no new purchases on the card. Your actual costs depend on your current rate and the offer you get.

When a balance transfer is usually worth it

  • You have a balance that's costing you interest right now.
  • You can afford regular payments that will clear most or all of it during the 0% period.
  • You're likely to be accepted for a deal long enough to make a difference. Check with an eligibility checker first: Credit card eligibility checkers explained.
  • You'll stop using the old card for new spending, or use it only for amounts you pay off in full.

When it might not be worth it

  • Small balances. On a few hundred pounds you could clear in two or three months, the fee might be similar to the interest saved.
  • You're about to apply for a mortgage. A new application and new account could affect your credit file at a sensitive time.
  • The transfer would push your new card close to its limit. High utilisation can affect your score. See Credit Utilisation Explained: How Much of Your Limit Should You Use?.
  • You'll run up the old card again. You could end up with two debts instead of one.
  • You can't keep up with minimum payments. A missed payment can end the 0% deal early.
  • The debt is from the same banking group. Most issuers won't accept it. See Can You Do a Balance Transfer Within the Same Bank Group?.

Choosing the right deal

Compare everything on our balance transfer cards page.

Alternatives to consider

Tips to get the most from it

  • Transfer within the deadline, often 60 or 90 days, to get the 0% rate and the advertised fee.
  • Keep paying your old card until the transfer has gone through.
  • Set up a Direct Debit for more than the minimum payment.
  • Note the end date and plan for any remaining balance. See What Happens When Your 0% Credit Card Deal Ends?.

Quick checklist before you apply

  • Do I know my current balance, rate and the minimum I have to pay?
  • Have I checked the fee, the 0% period and the transfer deadline?
  • Is the new card from a different banking group?
  • Can I afford a monthly payment that clears most of the debt before the deal ends?

Frequently asked questions

Is a balance transfer worth it for £1,000?

It can be. At around 25% APR, £1,000 costs roughly £20 a month in interest. A 3% fee is £30, so you'd usually save if it takes you more than two or three months to clear.

Does a balance transfer hurt my credit score?

Applying leaves a hard search, and a new account lowers the average age of your accounts. Over time, paying down the debt on time can help your score.

How long does a balance transfer take?

It often takes a few days to around two weeks, depending on the cards. Keep paying your old card until the balance shows as cleared.

Can I do a balance transfer more than once?

Yes. When a deal ends, you can apply for another, but you'll need to be accepted and will usually pay a new fee.

What if I'm only offered a lower credit limit?

You can transfer part of your balance and pay the rest down on your old card, starting with whichever is charging interest.

This is general information, not financial advice. Figures were taken from issuers' websites on 30 October 2026.

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