As long as you pay at least the minimum amount each month on time, and stay within your credit limit, you'll keep your promotional rate on the transfer. If you don't, you'll go back to your standard purchase rate. Remember, your simple standard rate moves up and down, in line with the Bank of England Base Rate.
If you have any other promotional balances with the same interest rate, we'll reduce the balance with the earliest expiry date first.
If you have some balances with higher rates, and you're not paying it all off every month, we'll use what you pay to bring those balances down first.
And one more thing, you can still benefit from up to 56 days interest-free on anything new you buy, after making a balance or money transfer, but you do need to pay off your main balance (excluding any promotional balances) in full by your payment due date. Don't forget to make at least your minimum payments on time and to stay within your credit limit.
Find out more about promotional interest rates and fees.