The card issuer knows that many people open a card account based on a promotion such as this and will keep the card, including the balance they incur on it over time, for years and years. The free period will apply usually from 6 months to 18 months and could be for purchases only, balance transfers only or both. The interest free credit card is often a way to attract new business. Being wary of offers that seem to good to be true is a healthy view but can actually cloud your opinion on a lot of good offers you could take advantage of. Therefore the 0% period is compensated for by keeping the new customer. A lot of people view interest free credit cards with a fair degree of scepticism. After all, which company is going to offer you an interest free loan, which it technically is there must be a catch, mustn't there. Cash withdrawals are not usually included and attract interest from day 1 at a high rate.

In general, the longer the interest free period, the more likely it is that the final.