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The gloves are off again as cash Isa providers dive head first into a new battle to offer the best buy rate.
The new skirmish was triggered by Hargreaves Lansdown* launching an account paying 4.55 per cent earlier in the week.
Trading 212* followed this opening salvo by nudging its boosted rate up to 4.56 per cent, which comes with a 12-month 0.71 per cent bonus for new customers.
On the sidelines, Etoro* had already introduced a promotional 4.67 per cent interest rate for new Isa customers, which is available until 31 December 2025 and includes a 12-month boost for new customers.
And Plum is currently offering a £20 gift card for new customers who open its cash Isa with our exclusive link* – the rate however is slightly lower than others at 4.45 per cent, which includes a 1.41 per cent boost for 12 months.
The Government is reportedly considering reducing the cash Isa allowance at the Budget on 26 November, so this renewed skirmish gives cash savers a good degree of choice over where to stash their money and make the most of the current £20,000 allowance.
Cash Isa: Etoro has an option that’s available in partnership with Moneyfarm
This choice is especially good for savers who have exhausted options exclusive to new customers, with both Etoro and Hargreaves Lansdown new entrants to the regular pack of providers at the top of our savings tables.
Read more about how the deals stack up below.
Etoro: 4.67% (boosted for 12 months)*
Etoro’s current promotion makes it a top-paying account. The rate includes a fixed bonus for 12 months, after which it plummets to the normal underlying rate of 3.67 per cent. The bonus is calculated daily and only paid after the year’s up.
New customers will get the 4.67 per cent rate, while the standard introductory rate for other customers is just 3.87 per cent.
There are several caveats to know before going ahead. Firstly, the account is provided in partnership with wealth manager Moneyfarm. If you’ve ever held and funded a Moneyfarm or Etoro Isa, you’ll get the standard 3.87 per cent rate for 12 months.
You should also try to maintain your balance if you want to maximise the boost, because the rate nosedives to 3.67 per cent if it goes below £500, or on your fourth withdrawal in the 12 months.
You need to open the account with at least £500 or transfer £15,000 minimum and transfers must land in the account by 31 January 2026.
Trading 212: 4.56% (0.71% boost for 12 months)*
Trading 212 has consistently offered a top rate on its cash Isa, and we like that there are no punishments for withdrawals.
It’s also a flexible Isa, meaning you can withdraw and replace money within the same tax year without reducing your overall allowance.
You can open it with just £1 and while the underlying rate is variable, the boost is fixed.
This could be a great option for savers who’ve exhausted introductory boosts from other providers.
The rate is straightforward, with no boosts to faff around with – but keep in mind it’s variable.
One caveat is the way transfers work. You’ll need to open the cash Isa with a minimum of £1 first, then transfer to a Hargreaves Lansdown stocks and shares Isa before moving the uninvested funds over to the cash product.
This means you won’t be able to take advantage of this option if you’ve already maxed out your Isa allowance.
There aren’t any withdrawal restrictions but it’s not a flexible Isa, so if you withdraw and replace funds you’ll hit your overall Isa allowance.
Moneybox: 4.47% (0.77% boost for 12 months)
This is a good rate, however Moneybox will drop your rate to a measly 0.75 per cent after three withdrawals in 12 months, or when your balance drops below £500 – so you should be sure that you can lock your money away for an extended period.
You need £500 to open the account and it’s not a flexible Isa.
Plum: 4.45% with £20 gift card (1.41% boost for 12 months)*
We like that Plum has recently made changes to its cash Isa, with the provider removing penalties for withdrawing.
You can open the account with just £1 and if you sign up using our exclusive link, you’ll nab a £20 gift card. You need to have £1,000 in the account after three months to be eligible for the reward – make sure you read all the terms when going ahead.
Plum doesn’t offer a flexible Isa.
You can compare the current best buys below:
| Etoro | Trading 212 | Hargreaves Lansdown* | Moneybox | Plum | |
|---|---|---|---|---|---|
| Boosted rate | 4.67% (3.87% existing customers) | 4.56% | No boost | 4.47% | 4.45% |
| Underlying rate (variable) | 3.67% | 3.85% | 4.55% | 3.7% | 3.04% |
| Minimum deposit | £500 (rate drops if falls below) | £1 | £1 (must open with £1 before transferring) | £500 (rate drops if falls below) | £1 |
| Withdrawal restrictions | Rate drops after three withdrawals | None | None | Rate drops after three withdrawals | None |
| Flexible (withdraw and replace without affecting allowance) | Yes | Yes | No | No | No |
| * Hargreaves Lansdown cash Isa is powered by Shawbrook | |||||
You can keep up with the best rates by checking out our regularly updated cash Isa savings tables.
Most of the providers listed here are known mainly as investment platforms, and if you open a cash Isa it’s likely they will try to encourage you to start investing. Before going ahead, read our guides to the best investing platforms and the best stocks and shares Isas, which should help when deciding where to put your money.
You can also read our guide to investing for beginners.
Etoro and Trading 212 offer CFD (contract for difference) trading, which involves complex instruments and is very risky. We believe these are best avoided.
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