Credit card balance transfer question/help please

[DeficiencyDeficient]

I have balances spread across three cards. The interest free periods end this month, tesco ends tomorrow.

Santander - this balance isn't interest free at the moment.
Limit 10,100
Balance 4048.49
Current monthly payment 150

Tesco
Limit 8,800
Balance 2,401.52
Current monthly payment 30

Halifax
Limit 11,500
Balance 9,244.61
Current monthly payment 100

My question is, if I move a balance from one card, that amount becomes interest free, but the previous amount doesn't. If I move the previous amount, will it move that 'old' portion of money and not the new balance, leaving the old one there to accrue interest?

How do I move this money around in the best way please? And maybe spread it a bit better to get the best from the minimum payment amounts? I fucked up on that last year. If possible I'd like to reduce the min payments so I can overpay on each and get it cleared.

Thank you for any help 🙏

I didn't reagent this bit:

If possible I'd like to reduce the min payments so I can overpay on each and get it cleared.

So you want to reduce minimum payment OR overpay?

You're paying back only £280 a month in total. That will mean near enough 5 years to clear the debt, provided that it doesn't grow further interest. I'd def try to increase the amount you pay, and pay off the one with the highest rate first.

Do you have balance transfer offers available to you at the moment?

I'd try and shuffle as much onto the one card as possible to make the most impact out of the 0% rates.

OR

Use the snowball method. Can you up your repayments? If you're leaving them all exactly as they are, I'd reduce the two bigger ones to min payments, and throw as much at the smallest one as you can. Clear that, and move the payment to the next smallest card, plus the previous minimum payment.

I prefer to have one payment though, so I'd probably clear the smallest one as quickly as possible, then combine the other two onto one card with hopefully a 0% offer, and just have the one bigger payment coming out each month.

First- check with current providers what deals they’re offering. You may find they are offering a low interest deal.

Then I would find another 0% card and do the maximum balance transfer that the credit limit would allow for the cards with the worst deal.

This could mean you’re combining two of the cards reducing the need to keep on track of two different debts.

Barclay card hit me with a huge minimum repayment that I thought would be the end of me so it’s worth checking the Ts and Cs. I’m actually quite glad now though because it meant I finally cleared the damn thing.

Minimum payments on the interest free and throw everything at clearing the one you’re paying interest on.

Also if you can't find 0% deals or the minimum payments are too much, maybe look at consolidating all your debt to one place and then make payments only on that. The rates they offer are usually better than credit cards

Moneysavingexpert have good advice about all this.

https://forums.moneysavingexpert.com/categories/banking-borrowing