If you have established credit, you’ve probably received some offers in the mail for a balance transfer with “rates as low as 0%”.

But don’t get too excited yet. That 0% rate won’t last. You’re also likely to find there’s a one-time balance transfer fee of 3% to 5% of the transferred amount.[i] We all know the fine print matters – a lot – but let’s look at some other considerations.

What is a balance transfer?
To attract new customers, credit card companies often send offers inviting credit card holders to transfer a balance to their company. These offers may have teaser or introductory rates, which can help reduce overall interest costs.

Teaser rate vs. the real interest rate
After the teaser rate expires, the real interest rate is going to apply. The first thing to check is if it’s higher or lower than your current interest rate. If it’s higher, you probably don’t need to read the rest of the offer and you can toss it in the shredder. But if you think you can pay the balance off before the introductory rate expires, taking the offer might make sense. However, if your balance is small, a focused approach to paying off your existing card without transferring the balance might serve you better than opening a new credit account. If – after the introductory rate expires – the interest rate is lower than what you’re paying now, it’s worth reading the offer further.

The balance transfer fee
Many balance transfers have a one-time balance transfer fee of up to 5% of the transferred amount. That can add up quickly. On a transfer of $10,000, the transfer fee could be $300 to $500, which may be enough to make you think twice. However, the offer still might have value if what you’re paying in interest currently works out to be more.

Monthly payments
The real savings with balance transfer offers becomes evident if you transfer to a lower rate card but maintain the same payment amount (or even better, a higher amount). If you were paying the minimum or just over the minimum on the old card and continue to pay just the minimum with the new card, the balance might still linger for a long time. However, if you were paying $200 per month on the old card and you continue with a $200 per month payment on the new card at a lower interest rate, the balance will go down faster, which could save you money in interest.

For example, if you transfer a $10,000 balance from a 15% card to a new card with a 0% APR for 12 months and a 12% APR thereafter, while keeping the same monthly payment of $200, you would save nearly $3,800 in interest charges. Even if the new card has a 3% balance transfer fee, the savings would still be $3,500.[ii] Not too bad. If you’re considering a balance transfer offer, use an online calculator to make the math easier. Also, be aware that you might be able to negotiate the offer, perhaps earning a lower balance transfer fee (or no fee at all) or a lower interest rate. It costs nothing to ask!

[i] https://creditcards.usnews.com/articles/when-are-balance-transfer-fees-worth-it
[ii] https://www.creditcards.com/calculators/balance-transfer/