ChestertonGrant:
All well and good, but what happens when you get to the point of the card providers refusing to give you a new card because you already have credit facilities of £50,000? Or when they don't give you enough of a limit and you can't transfer the whole balance over? It's a gamble that could result in you paying in the high-teens in credit card interest just to save on your 5% mortgage.
not really, you can roll over old cards again and again, as once old ones are cancelled, you can re-apply 6 months later. You make the payments from the offsets linked savings account, so as cards expire, you always have access to the cash to pay it off if you can't renew with another card.
I ve been rolling a "debt" around on my offset for years. A lot of people call this stoozing.