You build that balance up by spending 10k over a year. Nice holiday, food, Gucci belt etc.
I know you're joking about the belt but the idea here is not to spend on stuff you wouldn't normally, thats the big risk with this is lifestyle creep if you're just dropping things on a cc and knowing you won't pay it back for 2 years. "its ok I'll just spend a bit less next month", and then you don't. There's lots of things I would like to buy (house DIY stuff, new sim racing wheel, PC upgrades) and what stops me now is seeing that savings diminish or that overall level of debt increase.
I just took a look at my available offers. I have a very solid credit history, aside from the mortgage only a bit (£3k) of existing credit card debt (already on a 0% deal), which is already covered by savings (I used a 0% purchase CC to buy some stuff for the house a year to 2 years ago, I had the savings to cover it but wanted to put it on a CC). That offer expires in March so firstly I need to do a BT for that amount.
Going on MSE eligibility checker Im 100% pre-approved for 29 cards in total with the others showing anywhere from 90% change down to 0% chance. However all of these have a fee of between 1% and 3.5% except for the following:
* Santander, 0% BT for 15 months no fee (but there is a £3 per month fixed account charge).
* Virgin money 0% BT for 9 months no fee
* Natwest 0% for 12 or 10 months (unknown until you apply) no fee
So those deals are far away from the ideal 20-24 months duration and this isn't great. I can get another 12 months hopefully with Natwest so that is worth £150 interest on my offset £3k debt. My crypto balance (not particularly ground breaking either) varies by more than this on a daily basis.
Lets look at 0% purchase cards eligibility:
Im 100% pre-approved for 7 cards including:
* MBNA 21 months 0% but only on spending in the first 60 days (this is the issue I was on about before, its obviously still like this for some card issuers).
* Lloyds bank 20 months 0%
* HSBC 0% 20 months
* Virgin money 0% 13 months
* M&S 0% 20 months
Im 0% approval chance for all Barclaycard offers, presumably because I had a Barclaycard already which I only closed down last year as they weren't any good for recurring offers.
There are no low fee money transfer offers, so can't get a quick starting boost.
So in terms of 0% purchase yes I could get 20 months at 0% which lets say for a 10k credit limit (will take me 2 years to fill that at £500 a month spending, the biggest spend I used to have was fuel but with my EV this is now gone so I have far less direct spending now). Ive calculated this will be worth £372 in interest in total over those 20 months, this is including the impact of the min repayment and assuming 5% interest rate).
So £372 in 20 months. For the hassle of making regular transfers, having to keep on top of savings account rates, opening and closing various accounts for the regular savers etc.
Now, if I then can BT that balance after 20 months for another 12 months at 0% fee, then yes there is then another £430 interest available as the debt is already built up by that stage. That's a better figure for just a 12 month period. The issue for me is that end goal is 3 years away, which is a long time. And my mortgage is up in around 2.5 years so keeping that CC debt may not be a good idea.
Im not saying I earn enough to turn down free money but compared to historic methods this is pretty low value.
To be fair I did care a lot more about these sorts of things when I had no savings. A few years back I was really into bank account switching and made about a grand off it. There's a few switches I could do again now (not as many as before) but then I have the hassle of moving direct debits around. Its bordering on 'can i be bothered' for me on this. Im trying to convince myself to do it but failing at the moment.
Also got to remember that its only the recent interest rate rises that have made this viable at all. Prior to 2021 stoozing was completely non viable, you could barely offset the BT fees with earned interest.