The Final Sprint: Maximizing Every Pound in Your Last Days of Tax Year 2022-23
You've got ten days left. April 5 isn't just another date on the calendar — it's the wall at the end of the tax year, and everything changes on April 6. Your ISA allowance resets. Tax bands shift. New offers start rolling out. And if you've not locked in certain moves, you'll have to wait a whole year for the chance again.
The good news? There's still genuine money to be made in these final days. The bad news? Most people waste these ten days because they don't know exactly what moves still work.
Let me be direct: if you're hoping to squeeze in a bank switch now and get the bonus before April 5, you're probably too late. But there are three other things you absolutely should do, and if you get them right, you'll enter next tax year with a much stronger position.
The Cooling-Off Period Reality Check
Let's start with the uncomfortable truth about late-March bank switches.
When you open a bank account in the UK, you get 14 days to change your mind — the statutory cooling-off checker period. Most banks won't pay your switch bonus until that 14 days is up. Here's the math: if you switch on March 28, your cooling-off period ends around April 11. Your bonus likely lands April 12 or later. That's in tax year 2023-24, not the current one.
This matters if you're managing your tax carefully. Bonuses paid before April 5 count towards this tax year's income. Those paid after count towards next year. If you're close to a tax band edge, or if you've already received a certain amount of interest and bonuses, moving the bonus to next year might actually help you — but you need to be intentional about it, not accidental.
The practical takeaway: don't apply for a bank switch right now expecting to use the bonus in 2022-23. It won't work. Instead, see late-March switches as an investment in next year. Which is actually fine, because next year is only eight days away.
Move 1: Drain Your ISA Allowance (This Is Non-Negotiable)
You get £20,000 per tax year to put into ISAs. This allowance doesn't roll over. Unused allowance is gone forever on April 6. If you've still got £5,000, £10,000, or more sitting unused, this is your final window.
The mechanism is dead simple: move cash into any ISA-eligible account before April 5, and any interest you earn on it is tax-free. No tax forms, no complications — it's just free money.
Here's the current reality on rates:
- Easy-access ISA savings accounts: 4-4.5% (your cash is always available)
- Fixed-rate ISAs: 4.8-5.2% (you lock money in for a year, but get higher rates)
- ISA current accounts: 3.5-4.2% (you get interest on your balance plus current account features)
If you've got £10,000 of ISA allowance left and you stick it in a 4.5% account for the next ten days, you'll earn about £12. Not life-changing, but it's literally money sitting on the table doing nothing if you don't move it.
If you've got £15,000 left and you lock it into a 5% fixed-rate ISA, you're looking at £750 per year in interest — tax-free. That's real money for less than five minutes of work.
The ISA current account play: This is where it gets interesting. Some banks offer ISA versions of their current accounts. You open the account, earn interest on your balance (tax-free, within your ISA allowance), and get a current account you can actually use. If you were planning to open a new current account anyway in April, why not do it now? You'll get ten extra days of interest, and you'll still have the flexibility to switch again in April if a better offer comes along.
Move 2: Lock in a Regular Saver This Month
Most banks' regular savers accounts let you open them any time, but they pay monthly interest on deposits you make each month. If you open one now and make your first contribution before April 5, you get interest at the headline rate for that month.
Here's why this matters: regular saver rates are often 5-7%, which is genuinely high. If the account's minimum is £100 and maximum is £250 per month, you can pay in £250 now, earn interest on that £250 for the rest of March and the first few days of April, then continue contributing in April and beyond.
Quick math: A £250 deposit at 6% for one month gets you roughly £1.25 in interest. That doesn't sound like much, but you're getting full-year rates on tiny contributions. Across multiple accounts, or if you've got a couple of thousand to deploy, it adds up. And this is interest you're earning at the best rates currently available.
Most people wait until April to open regular savers. Don't be most people. Open now, pay in before April 5, then keep contributing in April. You'll have effectively gotten an extra month of high-rate savings.
Move 3: Deploy Stoozing for the Short Term
If you've got a best 0% cards lying around — either unused or with available balance — late March is actually tactical time to use it.
Here's the play: load £2,000 or £3,000 onto your 0% card right now. Move that cash into a high-rate savings or current account (somewhere that's earning 4.5-5% interest). Hold it there for thirty days. In thirty days, you've earned interest on money that cost you nothing. Then you pay off the credit card with the interest-earning cash, and you've pocketed the interest difference.
This only works if:
- You've actually got a 0% card with available balance
- The card has enough 0% period left (ideally 12+ months)
- You put the cash somewhere that actually earns interest (not a current account paying nothing)
- You can pay it back after earning interest
If all four are true, you're literally earning free money. The difference between 0% and 4.5% over a month on £3,000 is about £11. Pointless in isolation, but if you've got multiple cards, or if you're thinking across multiple months, this is how people earn proper money from stoozing.
A Real Example: Your Final Ten Days
Let's say you're hitting these final ten days of the tax year:
You've got:
- £8,000 of ISA allowance left
- No regular saver account open yet
- A credit card with £5,000 available balance and 16 months of 0% left
Your action plan:
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Move £8,000 into a 4.5% ISA savings account today. Cost: five minutes. Benefit: ~£10 in interest before April 5, plus you've cleared your allowance so you can do other things in April.
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Open a regular saver account tomorrow at a bank offering 6%. Pay in £250. Cost: ten minutes. Benefit: ~£1.25 in interest this month, plus you're locked in at a high rate for next year.
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Load £3,000 onto your 0% credit card. Move it to a 5% current account. Hold for a month. Then pay off the card. Cost: £0. Benefit: ~£12.50 in interest.
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Check our offers page for banks launching anything in early April. You're not switching now, but you want to know what's coming so you can move fast on April 6 when the tax year resets.
Over these ten days, you've earned roughly £25 without taking any real risk. You've positioned yourself to earn hundreds more in April when you can do bigger switches. And you've avoided the cooling-off period trap.
What NOT to Do in These Final Days
Don't chase a bank bonus now. The timing doesn't work. Focus on next year.
Don't open multiple regular savers without checking if that bank allows it. Some banks limit you to one per person. Check before your second application.
Don't forget to use your ISA allowance. Seriously. This is almost never a mistake you'll make twice once you've lost allowance.
Don't stooze without a purpose. If you're loading a credit card, actually make sure you're earning interest on the cash. Otherwise, you're just moving money around.
Common Questions
Can I still get a bank switch bonus if I apply in late March?
You can apply now, but the bonus will almost certainly land in April, in the 2023-24 tax year. If that works for you, go ahead. If you specifically needed it in this tax year, you're too late.
What happens to unused ISA allowance?
It's gone on April 6. You don't get it back. Ever. If you've got allowance left, use it.
Can I open a regular saver now and contribute later?
Yes, absolutely. Open it now, make your first payment before April 5 to lock in the rate, then continue contributing in April and beyond.
Is it worth locking money into a fixed-rate ISA when we're only ten days from a rate reset?
If you get a decent rate (4.8%+ for a year), yes. You're locking in current rates before they potentially drop. Plus, you clear your allowance so you've got fresh allowance for April.
Should I stooze right now with interest rates where they are?
Only if you've got a 0% card and a place to earn interest on the cash. If both are true, even ten days of interest is money in your pocket. But don't open new cards just to stooze in the final week — that's overkill.
What's my top priority if I can only do one thing?
Use your ISA allowance. This is the one move you literally cannot do again once April 6 arrives.