Cash savings platforms explained

A cash savings platform, sometimes called a savings hub or savings marketplace, is an online service that lets you hold money with many different banks and building societies through a single account. Instead of opening a separate savings account with each provider, you open one account with the platform, and the platform places your deposits with its partner banks. The range of accounts on offer is wide, including ISAs, instant access and fixed term options¹.

The main attraction is convenience combined with protection. Because your money ends up as deposits at several separately licensed banks, you can spread savings well above the £120,000 FSCS limit while keeping the protection that limit provides at each bank. FSCS protection for banks, building societies and credit unions is up to £120,000 per person, per banking licence², and if a partner bank fails, FSCS will pay compensation within seven working days in most cases³.

The trade-offs are worth understanding before you use one. The platform is a middleman: it decides which banks it works with, it may keep part of the interest your money earns, and the protection you get depends on the licences of the banks it uses, not on the platform's own name. This page explains how the arrangement works, how platforms are paid, and exactly where FSCS protection starts and stops.

What a cash savings platform does

A savings platform sits between you and a panel of banks. You open one account with the platform, transfer money in, and then choose which of its partner banks to place deposits with, or let the platform allocate the money for you. The platform is not itself a bank: it does not take deposits in its own right in the way a high street bank does. Instead, it operates the account, the website or app, and the paperwork, while the actual deposits sit on the balance sheets of the partner banks.

The model comes from the world of investment platforms. An investment platform, sometimes called a fund supermarket, allows investors to buy and hold a range of investments in one place online, and sometimes with a smartphone app¹. A cash savings platform applies the same one-login, many-providers idea to bank deposits. The range of savings accounts available across the market is wide, including ISAs, instant access and fixed term options⁸, and a platform brings a selection of these together in one place.

In practice, the platform shows you the accounts its partner banks are offering, with their rates and terms, and you choose where your money goes. Each placement is a deposit with that specific bank, in your name or held for you under the platform's arrangement. That matters for protection: the deposit counts towards your FSCS limit with that bank, alongside any accounts you hold with it directly. The platform's job is administration and choice, not safeguarding the money itself, which is why the licence of each partner bank is the number to check.

Who runs cash savings platforms

Cash savings platforms in the UK are run by a mix of investment firms and specialist savings businesses. Some grew out of investment platforms, which allow investors to hold investments inside tax-efficient wrappers such as Sipps (self-invested personal pensions) and ISAs, alongside a general investment account¹. Others were built specifically as savings marketplaces. The FSCS describes these services using several names, including savings marketplaces, cash platforms, savings services and deposits aggregators⁹.

The firms themselves are regulated by the Financial Conduct Authority (FCA), and the banks they place money with must be authorised by the Prudential Regulation Authority (PRA) for deposits to be protected¹⁰. The FSCS, the body that pays compensation when a bank fails, is an independent organisation with its own board of directors, although the Financial Conduct Authority and the Prudential Regulation Authority oversee its operation³. The Financial Services and Markets Act 2023 granted the FCA responsibility and powers over access to cash, part of the wider regulatory framework these services sit within¹¹.

For a consumer, the practical point is that two different firms are involved in every deposit: the platform you deal with day to day, and the bank that actually holds the money. Both have to be doing their job properly. The platform must place your money with a properly authorised bank and keep accurate records of whose money is where; the bank must be PRA authorised for FSCS protection to apply¹⁰. You can check a platform and each partner bank on the FCA Register, and the FSCS protection checker lets you confirm how your deposits are spread across licences⁹.

Retained interest instead of fees: how platforms are paid

Most cash savings platforms do not charge you a fee for holding cash. Instead, they are paid out of the interest your money earns. Quilter, which runs a cash facility alongside its investment platform, states this plainly:

The platform's cut is the difference between the rate the partner bank pays and the rate passed on to you. Quilter's published figures show, for the period from 11 September 2026 to present, a bank rate of 3.39%, of which 1.16% is retained, leaving 2.23% paid to the customer, described as 2.25%¹². So the rate you see on the platform is already net of the platform's share.

This is part of a wider pattern among platforms that do not charge fees. Platforms that charge nothing often make their money in other ways, such as foreign exchange fees or keeping cash interest, or upgrading customers to paid products such as managed portfolios or premium tiers¹. On the investment side, you might be charged if you transfer investments from one platform to another, though many platforms have scrapped these fees and some offer to cover switching fees as an incentive to join¹.

What this means when comparing a platform against a direct account with the same bank: the headline rate on the platform may be lower than the rate the bank pays its own direct customers, because the platform keeps a slice. That is not hidden, but it is worth checking whether the platform states how much interest it retains, as Quilter does¹². Interest on platform cash is usually calculated daily and paid monthly, in Quilter's case paid on the first working day of the month¹².

Cash held inside investment accounts works differently

Cash sitting in a cash savings platform is not the same thing as cash sitting inside an investment account or investment ISA. Many investment platforms hold your money in separate client money accounts, usually with UK banks¹³. This cash is a temporary parking place, typically for money waiting to be invested or held in preparation for a withdrawal, not a savings product in its own right.

Quilter's terms make the distinction explicit: if you have an ISA, CIA or CRA, you can choose to hold some of your investment in cash temporarily, such as in preparation for a planned withdrawal, but the cash facility is not intended for those who wish to invest high proportions of their account in cash holdings for longer periods, such as over a number of months or years¹². The interest treatment also differs: Quilter states that interest rates on its cash facility can be zero or negative¹², which is not a risk you would associate with an ordinary savings account.

Protection works differently too. A deposit is money in accounts such as current and savings accounts, including cash ISAs⁴, and deposits at a PRA-authorised bank attract FSCS protection up to £120,000 per person, per firm¹⁴. Client money held by an investment platform is safeguarded under client money rules rather than being a deposit in your name, and the FSCS cover that applies if the platform fails is investment protection, which works differently from deposit protection. The Financial Ombudsman Service, which handles complaints about ISAs, notes that cash ISAs work like a tax-free savings account¹⁵, which is a different product from cash held inside a stocks and shares ISA.

The rules are also tightening here. Under the ISA reforms taking effect from April 2027, cash-like assets will be eligible for non-cash ISAs only as partial allocations, and they must not make up 100% of the account¹⁶. So an investment ISA cannot simply be used as a cash savings account by another name.

Instant access, notice and fixed-term accounts on a platform

The accounts offered through platforms are the same types you would find on the high street, just gathered in one place. The main types are:

• Instant access accounts, which let you withdraw at any time. On Quilter's cash facility, instant access means accounts with less than 31 days' notice¹².
• Notice accounts, where you tell the platform in advance that you want to withdraw, and wait the notice period.
• Fixed term accounts, where money is tied up for a set period in return for a rate that is fixed for the term. The FSCS savings protection limit of £120,000 (or £240,000 for joint accounts) applies per authorised firm¹⁷, and fixed term deposits count towards it in the same way as instant access money.

Choosing between them on a platform works much like choosing between easy access savings, notice accounts and fixed-rate bonds directly. The difference is that on a platform you can hold all three types, at several different banks, behind one login, and see them side by side. MoneyHelper's guidance on cash savings bonds covers how fixed term deposits work, including what happens at maturity¹⁷.

One practical difference is operational. With a direct bank account, you withdraw by transfer from that bank. On a platform, withdrawals usually come back through the platform first, which can add a step to the process. Rates on variable accounts can also change, and the platform's retained share can change too, so the rate you signed up for is not guaranteed to persist¹².

FSCS protection: up to £120,000 per person, per banking licence

The core protection rule is simple: FSCS protection for banks, building societies and credit unions is up to £120,000 per person, per banking licence². FSCS now protects eligible deposits from the first pound up to £120,000 per person, per authorised firm¹⁸. Your provider must be authorised by the Prudential Regulation Authority (PRA)¹⁰, and the FSCS can automatically compensate you, up to £120,000 per eligible person, per firm¹⁴.

On a platform, this limit applies at each partner bank, not at the platform. If you have money in multiple accounts with multiple banks that are part of the same banking group and share a banking licence, they are treated as one bank, with the £120,000 limit applying across all of them¹⁰. So the question to ask of every placement is: which banking licence does this sit under, and how much of my money is already with that licence?

If a bank or building society fails, FSCS will automatically pay back customers' money within seven working days in most cases⁵. You do not need to make a claim for a standard deposit: the process is automatic⁵. More complex cases, including temporary high balance claims, take longer¹⁰.

The platform's own failure is a separate question. The FSCS states that if an aggregator deposited your money with a regulated bank that then fails, it is likely that FSCS will protect it⁹. In other words, the deposit does not lose its protection because a platform stood in the middle. But this depends on the money actually being placed as a deposit with a PRA-authorised bank, which is why checking where each placement sits matters more than the platform's brand name.

Spreading savings across banks with different licences

The main reason people with large balances use platforms is to stay under the £120,000 limit at each bank without opening dozens of accounts themselves. If you have £300,000, you cannot protect it all at one bank. The FSCS's own examples show the strategy: £120,000 in one authorised bank is fully protected, and the same again at a second authorised bank¹⁰. The documents differ on which banks to use as examples, one showing Barclays Bank plc and another Nationwide Building Society, but the principle is identical: split the money across separately licensed firms.

The trap is brands that look separate but are not. Banks that share a licence, such as Bank of Scotland, Halifax and Lloyds, count as a single provider¹⁹. Money in accounts with multiple banks that are part of the same banking group and share a banking licence is treated as one bank for the £120,000 limit¹⁰. A platform that places your money with two brands under one licence has not doubled your protection.

To check your own position, the FSCS protection checker lets you enter your accounts and see how they group under licences; the tool assumes a joint account with two account holders, each with an equal share⁹. Platforms usually show the banking group behind each partner bank before you place money, but the FSCS checker is the authoritative way to confirm⁹. The dedicated guide to FSCS protection for savings covers the limit in more depth, and what happens to money above the FSCS limit covers the position of balances that exceed it.

Joint accounts and temporary high balances

Two rules extend protection beyond the basic £120,000. The first is joint accounts. Joint accounts are eligible for FSCS protection up to the same limit of £120,000 per eligible person²⁰. So FSCS would protect up to £240,000 of savings in a joint account with two holders⁴, and the same per-person rule applies whatever the number of account holders: FSCS protects each of you up to £120,000 in total across all accounts you hold with that firm²¹.

Note that this is per banking licence, not per account. Two joint accounts at brands sharing one licence still share one £240,000 pot. And if joint account holders are acting as business partners, the partnership is only entitled to a single claim of £120,000, not one claim per partner¹⁰. The guide to FSCS cover on joint savings accounts covers this in full.

The second rule covers temporary high balances. These may occur from major life events, such as selling a home or receiving an inheritance⁶. Qualifying temporary high balances are protected up to £1.4 million for six months from when the amount was first deposited¹⁰. A redundancy payout, whether voluntary or compulsory, also counts⁴. No monetary limit applies for temporary high balances arising from a payment in connection with personal injury or incapacity²². The six-month clock and the qualifying events are set out in the guide to temporary high balance protection.

Where FSCS protection does not apply

FSCS deposit protection has hard edges, and platforms do not change them. The exclusions that matter most:

• E-money and payment services firms. FSCS can't protect e-money or payment services firms⁹. If an account is not a bank deposit, it is likely to be a virtual current account covered by e-money rules: your money is kept safe at a different bank, but you would need to make a claim to the administrator if your provider failed²³. FSCS may look through a payments firm to compensate its customers if the firm's UK safeguarding bank fails, but FSCS does not cover cases where the payments firm itself fails²⁴.
• Payment services failures. When Premier Payment Solutions Ltd entered liquidation, the FCA confirmed the FSCS does not cover payment services²⁵. The FSCS only applies to certain types of activity.
• Firms with no deposit-taking licence. PayPal has no FSCS protection²⁶. Money held with firms that are not banks is safeguarded rather than deposited, and safeguarding is not insurance against loss.
• Certain insurance lines. Credit insurance, aviation and marine insurance claims are not eligible for FSCS protection²⁷, and property insurance claims are covered at 90% rather than in full²⁸.
• Unregulated arrangements. FSCS does not protect money that a debtor pays under an individual voluntary arrangement arranged by insolvency partners, which are not regulated by the FCA²⁹.

For platform users the first two matter most. A genuine cash savings platform places deposits with PRA-authorised banks, and those deposits are protected¹⁰. But savings-style apps and payment accounts that merely hold your money at a safeguarding bank are a different animal, covered in the comparison of savings apps and bank accounts. The FSCS Protected badge, which confirms deposit protection up to £120,000 per eligible person, per firm, is one way to check what you are looking at¹⁴.

Cash ISA changes for under-65s from April 2027

Cash ISAs held on platforms are affected by changes announced at Budget 2025 and taking effect on 6 April 2027. The government is reducing the annual cash ISA subscription limit to £12,000 for individuals aged under 65 from 6 April 2027⁷, amending the Individual Savings Account Regulations 1998 to do so³⁰. For investors aged 65 and over, the annual subscription limit for a cash ISA will remain at £20,000³¹.

Two anti-circumvention rules come in alongside the lower limit. First, there will be no transfers from stocks and shares ISAs and Innovative Finance ISAs to cash ISAs for investors under the age of 65 from 6 April 2027³¹. The legislation provides that transfers from a stocks and shares ISA or innovative finance ISA to a Cash ISA are prohibited where the account holder is below the age of 65³². Second, there will be a charge on any interest paid on cash held in a stocks and shares ISA or Innovative Finance ISA³¹, so parking cash inside an investment ISA will not sidestep the change. Cash-like assets will be eligible for non-cash ISAs only as partial allocations, and must not make up 100% of the account¹⁶.

The higher limit for older savers is deliberate. The Government has retained the £20,000 limit and transfers into cash ISAs for those aged 65 and over in recognition of the need of those approaching retirement to restructure and derisk their investments³². The transfer restriction is disapplied for this group from the start of the tax year in which they turn 65³³.

Two reassurances about existing savings. NS&I states the change will only apply to new deposits made from April 2027 and won't have any impact on savings already made³⁴. And the overall ISA allowance remains at £20,000: under-65s can still subscribe the full amount, just with at most £12,000 of it in cash³⁵. The comparison of cash ISAs and ordinary savings accounts covers how the tax treatment compares.

Getting help if something goes wrong

If a partner bank fails, you do not need to act: FSCS can pay you compensation if your financial services provider fails and can't pay back your money itself³⁶, and standard deposit claims are paid automatically within seven working days⁵. The FSCS protection checker shows how your money is spread across licences before anything goes wrong⁹, and its guidance on what it covers sets out the full scope of deposit and investment protection²⁰.

If the platform itself fails, the position depends on how it held your money. Deposits placed with regulated banks are likely to be protected⁹, but money held under e-money or safeguarding rules is not covered by FSCS and would involve a claim to the administrator²³. If you invested using a well-known investment platform such as Hargreaves Lansdown and it went bust, you would be covered by the FSCS under investment protection¹³, which is a different scheme from deposit protection.

For complaints rather than failures, the Financial Ombudsman Service handles disputes about savings and ISAs¹⁵, and it is free to use. MoneyHelper, the government-backed money guidance service, offers free information on savings accounts and choosing bank accounts¹⁷. If you think you have been scammed rather than simply let down by a failing firm, the guide to savings and fake bond scams explains how these frauds work and what recovery may be possible.