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Juno Hunt is a savings comparison service from MFG Management Services Limited (registered in the Isle of Man, company number 135041C; registered office Clarendon House, Victoria Street, Douglas, Isle of Man, IM1 2LN), part of Manx Financial Group. We list savings accounts from UK banks and building societies authorised by the Prudential Regulation Authority, and from NS&I, which is backed by HM Treasury. Manx Financial Group also owns Conister Bank: its accounts are ranked by rate alone like every other bank's and labelled "Our group".

Some banks pay us when you open an account through our link. That payment never changes the order of results. We don't give personal advice, and we never hold your money. Rates can change at any time, so check the details with the bank before you apply.

Juno is our mascot. She finds and ranks rates; she doesn't give advice, and neither do we.

NatWest Cash ISA: 1.15% AER | Juno Hunt

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Cash ISA

Easy access · Cash ISA · Checked 3 Nov 2026, 11:00

1.15%

AER

Not above inflation: CPI 3.5%, September 2026

What you'd earn

If you put in (£)

You'd earn about £230.00 in 1 year, before any tax.

Worked out from the AER. Variable rates can change.

The conditions in plain English

Access: Instant access: withdraw at any time.
Minimum: £1
Interest paid: Monthly
Manage by: Mobile app, Online, Branch, Phone
Who can apply: UK resident aged 18+. 1.15% AER on £1-£24,999; 2.45% AER on £25,000+.
Where we read it: NatWest's own page, 3 November 2026

Full details

What NatWest's own website says about this account. See it on NatWest's website. The rate at the top of this page is the one Juno checked most recently.

Minimum age: 18 or overFrom NatWest's website, checked 3 November 2026
Where you must live: UK resident for tax purposesFrom NatWest's website, checked 3 November 2026
Minimum to open: £1From NatWest's website, checked 3 November 2026
Accepts ISA transfers in: YesFrom NatWest's website, checked 3 November 2026

"Not stated" means neither the bank's Summary Box nor the pages we checked said; it doesn't mean no. The bank's terms and conditions are the full agreement.

Can I open this?

Tick what applies to you to compare it with the conditions the bank states. Nothing you tick leaves this page.

Your age 16 or 17 18 or over

Do you live in the UK? Yes No

Already a NatWest customer? Yes No

How you'd like to open it In the app Online In a branch

Account holders I want a joint account

This compares your answers with the conditions the bank states; it isn't a decision. NatWest decides who can open the account, and runs its own checks when you apply.

Who holds your money

Deposit-taker: NatWest, a trading name of National Westminster Bank Plc
Incorporated in: United Kingdom
Regulated: Yes, by the Prudential Regulation Authority and Financial Conduct Authority (FRN 121878)
Protection and disputes: Financial Services Compensation Scheme and Financial Ombudsman Service
Capital: Paid-up capital and reserves of £22,685m at 31 December 2025 (latest published accounts).

Complaints and reviews

Complaints to the bank: Complaints the bank itself reported to the FCA about banking and credit cards, for NATIONAL WESTMINSTER BANK PUBLIC LIMITED COMPANY.86,498 complaints opened (2.74 for every 1,000 accounts); the bank upheld 55.4% of the complaints it closed. January to June 2026 (source)

These figures cover the whole firm behind NatWest, including current accounts, cards and loans, not just savings. Bigger firms have more customers and so more complaints. Periods differ between sources and are months old when published. They never change our rate order. FCA-format figures contain public sector information licensed under the Open Government Licence v3.0.

FSCS protection

Up to £120,000 per person is protected across everything you hold with National Westminster Bank Plc.

Shared licence: Ulster Bank, AA Savings, Saga Savings, Sainsbury's Money also use this licence, so money there counts towards the same £120,000.

Check your total protection

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Rate history

No change since tracking began.

Go to NatWest to apply

You'll apply on NatWest's own website. NatWest may pay us if you open this account; that doesn't affect its position in our results.