Calculate how much you could save by transferring your credit card balance to a 0% deal. Compare the transfer fee vs interest saved over the promotional period.
A balance transfer lets you move existing credit card debt to a new card with a lower (often 0%) promotional interest rate. During the 0% period, every penny you pay reduces the principal balance — not interest. This makes it far easier to clear debt quickly.
UK balance transfer deals typically last 12–36 months with fees of 1–3% of the amount transferred. The market is competitive, with cards from Barclaycard, MBNA, Virgin Money, Halifax, and NatWest regularly topping comparison tables.
| Deal Length | Typical Fee | Best For |
|---|---|---|
| 12 months | 0–1% | Small balances you can clear quickly |
| 18–20 months | 2–2.5% | Medium balances with disciplined repayments |
| 24–30 months | 2.5–3% | Larger balances needing more time |
| 30–36 months | 3–3.5% | Large balances, lower monthly payments |
On a typical £3,000 balance at 24.9% APR, you pay around £747 in interest per year. By transferring to a 0% deal for 24 months with a 3% fee (£90), your net saving is approximately £657 if you make no repayments — and far more if you use the period to clear the balance. The exact saving depends on your balance, current rate, deal length, and fee.
In almost all cases, yes. A typical 3% fee on a £3,000 balance costs £90. At 24.9% APR, you'd pay £747 in interest in one year alone. Even on a 12-month 0% deal the saving is £747 minus £90 = £657 net. The only time a fee isn't worth it is if you can clear the balance within a few months at your current rate.
When the promotional period ends, any remaining balance reverts to the card's standard rate, typically 20–30% APR. You should aim to clear the balance before the deal expires, or arrange another balance transfer. Set a calendar reminder 2 months before expiry to give yourself time to act.
Compare: (1) length of 0% period — longer is better if you need time to repay, (2) transfer fee — typically 1–3%, lower is better if you plan to repay quickly, (3) eligibility — check representative APR and whether you'll be accepted, (4) standard rate after deal ends. Use eligibility checkers that do soft searches to avoid harming your credit score.
Applying for a balance transfer card involves a hard credit search, which temporarily reduces your score. However, reducing your credit utilisation and making on-time payments will improve your score over time. The net effect is usually positive within 3–6 months if you manage the card well.