Debt consolidation loan vs balance transfer

Two ways to clear credit card debt

If your debt sits mostly on credit cards, two routes stand out. The first is a 0% balance transfer card, a new credit card that lets you move existing card balances across and pay no interest for a promotional period. The second is a fixed debt consolidation loan, a personal loan you use to repay your cards, then pay back in equal instalments over a set term.

Both can cut the interest you pay and make the debt easier to manage, yet they behave quite differently. A balance transfer relies on you clearing the balance before the 0% period runs out. A loan spreads a fixed cost over a known timeline. Choosing well comes down to how much you owe, how quickly you can repay, and how much certainty you want.

How does a 0% balance transfer work?

A balance transfer card charges no interest on transferred balances for an introductory window. That window is often somewhere between several months and a couple of years, depending on the deal. While it lasts, every pound you pay reduces the balance instead of servicing interest, so the debt can fall quickly if you keep up steady payments.

Three details decide whether it pays off:

• The transfer fee. Most 0% cards charge a one-off fee, usually a percentage of the amount you move. It is added to your balance, so it is a real cost even when the interest is zero.
• The promotional period. The 0% rate lasts only for a fixed time. To get the full benefit, you need to clear the balance before it ends.
• The rate afterwards. Once the promotion finishes, any balance left is charged at the card's standard rate, which can be high. Leaving debt on the card past the deadline can undo the savings.

Balance transfers also depend on being accepted and on the credit limit you are offered, which may be less than you need. Approval and the length of the 0% deal rest on your credit profile, and neither is guaranteed.

How does a fixed consolidation loan work?

A fixed consolidation loan gives you a lump sum to repay your cards, which you then pay back in equal monthly instalments over an agreed term, commonly one to five years. Because the rate and term are fixed, you know the monthly payment and the total cost from the start, and there is a definite end date.

That certainty is the main appeal. There is no deadline to beat and no jump to a high rate at the end of a promotion. The trade-off is that you pay interest throughout, unless the rate is unusually low, so a loan is rarely free in the way a 0% window can be. A loan may also handle larger balances, or debt spread across several cards, better than a single card's credit limit allows. For more on that, see consolidating multiple credit cards.

Balance transfer vs loan at a glance

A worked example (illustrative only)

The figures below are an illustrative example to show how the maths works. They are not current, available or offered rates, and your own costs would differ.

Say someone has £4,000 of credit card debt and can afford about £185 a month towards it. Here are two hypothetical routes.

In this example the balance transfer wins on cost, but only because the debt is cleared inside the 0% window. If the same person could not clear it in time and the balance rolled onto a high standard rate, the comparison could flip. You can test your own numbers with the loan repayment calculator.

Which is cheaper, a balance transfer or a loan?

As a rough guide, a 0% balance transfer tends to win when the balance is small enough to clear within the promotional period and you have the discipline to avoid new spending on the card. A fixed loan tends to win when the balance is larger, when you need longer than a promotion allows, or when you value a guaranteed payment and end date over chasing the lowest headline cost.

The honest answer is that it depends on your numbers and your habits. Whichever way you lean, compare the total you will repay rather than the monthly figure, and factor in any fees. Our guide on how to reduce credit card debt covers the wider strategy, and the credit card debt consolidation page looks specifically at bringing card balances together.

Frequently asked questions