Do you need a current account to open a Cash ISA?

What do you need to open a Cash ISA?

gov.uk says you can get an ISA from banks, building societies, credit unions, friendly societies, stockbrokers and other financial institutions, and that you will need your National Insurance number. For the details of opening an account, it sends you to the provider.

HMRC’s guidance for ISA providers sets out what an application must contain: your full name, your permanent home address with its postcode, your date of birth, and your National Insurance number or confirmation that you have not been given one but are still eligible. You also declare that the money you pay in belongs to you, that you are 18 or over, that you are UK resident or carry out Crown duties overseas (or are the spouse or civil partner of someone who does), and that you will not pay in more than the overall ISA limit in the tax year. Neither list includes a bank account or a current account.

So where a current account is needed, the condition comes from the provider. HMRC’s guidance says an ISA can be opened once you agree to the provider’s terms and conditions and apply to pay in, and that a provider may impose conditions, giving a minimum lump sum as its example. The ISA allowance for 2026/27 is £20,000 across all your ISAs, whichever providers hold them. For the age, residence and ID checks in full, see how to open an ISA.

The numbers that matter

Current account needed by the ISA rules

No

Not on gov.uk's or HMRC's list

Providers in our table that need their own current account

8 of 51

For at least one Cash ISA, checked 30 October 2026

ISA allowance, 2026/27

£20,000

Across all your ISAs

FSCS deposit protection

£120,000

Per person, per authorised firm, current account and Cash ISA together

Which Cash ISAs need a current account with the same bank?

Some providers offer a Cash ISA only to people who hold one of their current accounts. Of the 51 providers in our Cash ISA table, 8 do this for at least one Cash ISA. The table lists them, from each provider’s own page as recorded in our data on 30 October 2026.

Each bank words the condition its own way. Monzo’s page says a Monzo current account is required, and money goes into its Cash ISA from your main Monzo balance. HSBC says its Cash ISAs are only for HSBC current account customers. first direct says a new customer needs to hold its current account, the 1st Account, to get access, and its Cash ISA pays out by transfer to that account. NatWest says its Cash ISA is for existing NatWest current account customers, and that you take money out in a branch or by transfer to another NatWest account in your name.

At other banks, only some Cash ISAs carry the condition. Barclays is an example: its Premier Triple Access ISAs are for Premier customers, who also need a Barclays current account. Its Instant Cash ISA sets no current account condition: the page asks that you are 18 or over and UK resident, and offers a branch appointment to open one. A condition can also name a particular account. Virgin Money’s M Access ISA is for holders of an eligible Virgin Money current account, such as M Plus, M or Club M, and its page says the Essential Current Account does not qualify.

The conditions for every account are in its details in our Cash ISA rate tables, and each bank in the table above links to our page for its ISAs where we have one.

Why do other Cash ISAs need a bank account?

Many Cash ISAs that do not ask for the provider’s own current account still need a UK bank account in your name. Providers call it a nominated, linked or connected account, and it is how money moves in and out of an account run online or in an app. Three examples from providers’ own pages:

• United Trust Bank says you must give a nominated bank account when you apply. It must be a transactional UK bank account in your name, and the money that funds the account must be sent from it, electronically or by cheque.
• Atom bank says you need a UK current account in your name as your connected account. Payments into its Easy Access Cash ISA can only come from that account, and money comes out through it.
• Vida Savings says deposits must arrive by electronic transfer from your nominated bank account, which must be in your name. Withdrawals can go back to it, to another Vida account or to another ISA provider.

None of the three asks for a current account of its own. The account can be at another bank, as long as it is the kind of account the provider asks for. gov.uk says you can take your money out of an ISA at any time without losing the tax benefits, and to check the terms for any rules or charges. It does not say where the money has to go: that is set by the provider’s terms.

Can the linked account be in someone else’s name?

Usually not. All three providers above say the nominated or connected account must be in your name, and all three take money in only from it. HMRC’s guidance says you must pay into an ISA with your own cash, which can include payment by cheque, direct debit, charge card, credit card, telegraphic transfer or standing order. It also says a provider can accept cash from someone else unless it holds information that the money does not belong to you. A provider’s own terms can be stricter than that, and the three above are.

Can you have a Cash ISA without a bank account?

It depends on the provider. A few building societies still run Cash ISAs over the counter. Marsden Building Society says its Flexible Cash ISA can be opened and operated at a branch, that payments in can be made in cash, by cheque or by debit card (up to £1,000), and that you can withdraw in branch whenever you need to, with limits on cash withdrawals. This is how three such accounts are opened and run, from our data, checked 30 October 2026:

Cumberland Building Society also says new customers must live within its operating area. If you have no bank account at all, the building society can tell you how it would pay money out to you.

If you would rather open a bank account first, HM Treasury has designated the nine largest personal current account providers to offer basic bank accounts to people who are legally resident in the UK and do not have a bank account, or who are not eligible for a standard current account. HM Treasury says basic bank accounts must be fee-free for standard operations in sterling and have no overdraft.

Can you transfer an ISA without a current account?

The ISA rules do not need one, because a transfer moves money from one provider to the other. gov.uk says you transfer by contacting the provider you want to move to and filling in its ISA transfer form, and that if you take the money out yourself instead, you cannot reinvest that part of your tax-free allowance. HMRC’s guidance tells the old provider to transfer the cash direct to the new one, and says money transferred is not a new subscription, so it does not use your allowance.

The new provider’s own conditions still apply, though, and some Cash ISAs take no transfers in at all. Monzo’s page says you cannot transfer an existing ISA into a Monzo Cash ISA, and Atom bank says it does not currently accept transfers in from other ISAs. Our transfer-in table lists Cash ISAs that do, and how ISA transfers work covers the steps and timings.

Do a Cash ISA and a current account share FSCS cover?

Yes, if they are at the same firm. The FSCS says a deposit is money in accounts such as current and savings accounts, including cash ISAs, and it protects up to £120,000 per person per authorised firm. The limit applies to you, not to each account, so a Cash ISA and a current account at the same bank count towards one limit. That applies to every Cash ISA in the first table, since each one sits at the bank that holds your current account. Where brands share a banking licence, the FSCS treats them as one bank: ISA and FSCS protection explains how to check.