If you are comparing savings platforms, the headline rate is only the first filter. The more important questions are often less visible: who holds the cash before it is placed, whether the platform charges you directly, how FSCS protection is calculated, whether your balance is large enough to use the service, and how much friction you face when moving money again.
This Raisin vs Flagstone savings platform comparison is written for UK savers checking those practical details before opening an account. It is not financial advice, and it does not rank either platform as a universal winner. The useful answer depends on your balance, need for access, comfort with fixed terms, and how carefully you want to spread cash across banking groups.
Disclosure: Thnktnk may earn a commission if you click certain provider links in the future. Our editorial process is explained on our editorial policy, and you can read more about how we cover financial products on our about page. Always check current rates, eligibility, and product terms directly with the provider before applying.
Raisin vs Flagstone savings platform: quick verdict
Choose Raisin UK if you want a simple savings marketplace with no direct platform fee, a broad range of easy access, notice, and fixed-rate accounts, and a lower-friction starting point for comparing partner banks. Raisin says its UK marketplace gives access to competitive accounts from over 45 partner banks, and that it is free to use because partner banks pay an intermediary fee.
Choose Flagstone if you have a larger cash balance and want to manage deposits across many banks from one platform. Flagstone says it gives access to hundreds of accounts from 65+ banks, with a minimum individual or joint account deposit of £10,000. Its model is more explicit about the platform taking a share of the interest before the rate appears to you.
The biggest difference is not simply "which one pays more". Rates change too quickly for that to be a durable comparison. The real difference is fit: Raisin looks more like a retail savings marketplace, while Flagstone is built around spreading a larger cash pot across multiple accounts and banking groups.
Raisin vs Flagstone comparison table
| Category | Raisin UK | Flagstone | Why it matters |
|---|---|---|---|
| Platform type | Savings marketplace for easy access, notice, and fixed-rate accounts | Savings platform for opening and managing many accounts from one login | Both reduce repeated bank-by-bank applications, but the user flow differs |
| Stated provider range | Over 45 UK partner banks on its UK pages | 65+ banks and 450+ accounts on its public pages | Wider choice can help, but only if the available accounts fit your term and access needs |
| Direct platform fee | Raisin says no fees for users | Flagstone says no platform, admin, or management fees | Both avoid a direct fee line, but revenue models differ |
| Revenue model | Raisin says it receives intermediary fees from partner banks | Flagstone says it receives up to 0.30% share of interest before rates appear | This affects how rates are displayed and why you should compare net rates |
| Minimum deposit | Check each account and current marketplace terms | Flagstone states a £10,000 minimum deposit | Minimums can decide whether the platform is realistic for your cash balance |
| Holding account | Raisin uses the marketplace flow for funding selected accounts | Flagstone uses a holding account while you choose savings accounts | Cash sitting in a holding account may not earn interest |
| FSCS treatment | UK marketplace accounts from UK banks are described as FSCS protected; European banks use DGS | Eligible deposits in the holding account and UK savings accounts are described as FSCS protected | FSCS limits apply per person, per authorised banking group, not per platform page |
| Product mix | Easy access, notice, fixed-rate bonds, and Sharia accounts are listed | Instant access, notice, fixed-rate savings, and Cash ISA are listed | The right platform depends on your access needs and tax wrapper requirements |
| Advice status | Raisin states its website information is not financial advice | Flagstone states it does not provide financial advice | You remain responsible for checking suitability |
How Raisin works for UK savers
Raisin UK is best understood as a savings marketplace. Its public UK pages describe a platform where savers can compare and open accounts from partner banks, including fixed rate bonds, easy access savings accounts, notice accounts, and Sharia savings accounts. Raisin says its UK platform is free to use and that it earns an intermediary fee from partner banks when customers open savings accounts through the marketplace.
That matters because the user does not see a platform fee deducted from their savings balance. The tradeoff is that you still need to compare the rates and terms shown on Raisin against accounts available elsewhere. A platform can simplify discovery and applications, but it does not remove the need to check term length, withdrawal restrictions, tax treatment, and whether the underlying bank shares a banking licence with another place where you already hold cash.
Raisin also states that it only works with banks protected by the FSCS or European equivalent schemes. For UK savers, that is helpful, but it is not the same as one blanket platform guarantee. FSCS protection is tied to the authorised bank or banking group holding the deposit.
For current accounts and provider details, check the official Raisin UK savings marketplace before applying.
How Flagstone works for UK savers
Flagstone is also a savings platform, but its positioning is more portfolio-like. Its homepage says savers can spread cash between hundreds of accounts from 65+ banks, and its platform pages describe a single application followed by funding a holding account and opening savings accounts from within the platform.
The key practical point is the minimum deposit. Flagstone says you need to be a UK resident aged 18 or over, have a UK bank account, and make a minimum deposit of £10,000. That makes it a less natural fit for someone opening with a small first savings pot, but more relevant for savers with a larger lump sum who want to spread deposits across multiple banks.
Flagstone also explains that its holding account is a temporary home for cash while you choose accounts. The holding account is described as FSCS-eligible, but Flagstone says it does not pay you interest. That is not a reason to avoid it automatically, but it does mean idle cash should be monitored. A platform is only useful if the money is actually placed into accounts that match your access and term requirements.
For current rates and eligibility, check the official Flagstone savings platform and its how it works page.
Fees and rate display: no direct fee does not mean identical economics
Both platforms avoid the obvious pain point of a visible monthly platform fee for personal savers. The difference is how each explains the economics.
Raisin says it is free to use because it earns an intermediary fee from partner banks for savings accounts opened through its marketplace. The amount depends on the balance and duration of the account. That is a common marketplace model: the bank gets deposit funding, the platform earns from the bank, and the saver sees the account rate offered through the platform.
Flagstone is more explicit about rate presentation. Its fees page says it receives a share of the interest from bank partners before the rate appears in the platform. It states the maximum share for savings accounts is 0.30%, and that the rate displayed is the rate the saver receives. For the Flagstone Cash ISA, it says the maximum share is 0.15%.
This is why comparing platforms only by "free" is too shallow. The better question is: after the platform's model is reflected, what rate, term, access condition, and FSCS position are you actually accepting? If a direct bank account offers a materially better rate with similar access and protection, the convenience of a platform has to justify the difference.
FSCS protection: check the bank group, not just the platform name
Raisin and Flagstone both highlight FSCS protection, and that is a useful trust signal. It should still be read carefully.
Raisin's deposit protection page explains that most savings accounts on its marketplace are from UK-based partner banks and protected by the FSCS. It also notes that deposits in European banks are protected under a European Deposit Guarantee Scheme rather than the UK FSCS. Its page states a £120,000 per person, per bank limit for eligible UK deposits.
Flagstone says eligible cash deposits in its holding account and UK savings accounts opened through Flagstone are protected by the FSCS, up to £120,000 per client, per banking group. It also explains that its holding account is provided by HSBC.
The most important reader takeaway is that FSCS protection is not multiplied just because you use a marketplace. If two banks operate under the same authorised banking group or licence, your protection limit may apply across the combined deposits with that group. Before placing a large balance, check the underlying bank, banking group, and any existing savings you already hold elsewhere.
The £120,000 limit also reflects a recent UK protection update. The change was reported in November 2025, with the higher limit taking effect from 1 December 2025. Because compensation rules can change, refresh this point before moving a large cash balance.
Access and minimum deposit: small saver versus larger cash pot
This is where the Raisin vs Flagstone comparison becomes more practical.
Raisin is likely the easier starting point if you are comparing ordinary savings accounts and do not want to begin with a large minimum platform balance. Individual accounts may still have their own deposit minimums and withdrawal rules, so you need to check each product. But the platform positioning is broad retail access: compare accounts, choose a term, and apply through the marketplace.
Flagstone is more clearly aimed at savers with a larger balance. Its stated £10,000 minimum deposit means the service may not fit someone building their first emergency fund. For larger balances, however, the ability to split money across multiple accounts can be valuable, especially when trying to keep deposits within FSCS limits across banking groups.
Access also depends on product type. Easy or instant access accounts can suit cash you may need soon, while notice accounts require a waiting period and fixed-rate accounts usually restrict withdrawals until maturity. A platform can make these options easier to browse, but it cannot change the underlying product rules.
Account choice and product range
Raisin lists easy access accounts, notice accounts, fixed-rate bonds, and Sharia accounts. That gives it a useful range for savers comparing term length and access needs. It also publishes partner bank pages, which helps readers check the underlying provider behind a headline rate.
Flagstone lists instant access, notice, fixed-rate savings, and Cash ISA options. It also offers tools such as a sample portfolio builder and interest calculator. The Cash ISA angle may matter if you want tax-free savings within ISA rules, though this article does not assess tax suitability.
For a straightforward "where can I find a competitive savings account?" journey, Raisin may feel simpler. For "how do I spread a larger cash pot across many banks from one dashboard?", Flagstone's broader platform workflow may be more relevant.
If you are also comparing investment platform costs, read our guide to stocks and shares ISA platform fees. If your decision is about spending abroad rather than cash savings, our Wise vs Revolut travel card comparison covers foreign exchange, ATM, and protection differences.
Support, exit friction, and what to check before opening
Savings platforms reduce application friction at the start, but you should also think about exit friction before opening anything.
Check what happens when a fixed-term account matures. Does the cash return to a holding account? How quickly can you withdraw to your nominated bank account? Are there cut-off times? What support channels are available if a transfer is delayed? Can you close the platform account without cost? Flagstone states you can request to close your account at any time with no cost or commitment, but product-specific savings terms still matter.
For either platform, keep a simple record of where your money is actually held. The platform brand is not necessarily the bank that takes the deposit. If you are close to the FSCS limit, document the underlying banking group and compare it with your existing accounts outside the platform.
Who should choose Raisin?
Raisin is the more natural starting point if you want a savings marketplace, want to compare fixed-rate, notice, and easy access options, and prefer a platform that says it is free for users. It is also a good fit if your main task is discovery: finding accounts from partner banks without opening separate applications directly with every provider.
Skip or pause if you need personalised financial advice, if you are placing a balance that requires careful FSCS spreading across several banking groups, or if the best current rate for your term is materially better outside the marketplace after you check directly.
Who should choose Flagstone?
Flagstone is the more natural fit if you have at least £10,000, want to manage a larger savings pot from one platform, and care about spreading cash between multiple banks. It may also suit savers who like the idea of a holding account and a single application process before selecting accounts.
Skip or pause if your balance is below the minimum, if you do not want cash to sit in a non-interest-paying holding account while you choose deposits, or if you only need one simple savings account and can get a similar or better deal directly from a bank.
Bottom line
Raisin vs Flagstone is not a universal winner decision. It is a fit decision.
Raisin is simpler for many retail savers who want a free-to-use marketplace and a broad set of savings account types. Flagstone is more compelling for larger balances where spreading cash, managing multiple banks, and understanding the holding-account workflow matter.
Before opening either platform, check three things on the same day: the current rate after the platform's model, the underlying bank or banking group for FSCS purposes, and the access rules for withdrawals or maturity. That is the difference between chasing a headline rate and making a savings platform work for your actual cash needs.
FAQ
Is Raisin safer than Flagstone?
Not automatically. Safety depends on where the cash is held, whether the underlying bank or holding account is eligible for FSCS protection, and how much you already hold with the same authorised banking group. Both platforms discuss FSCS protection, but you should check the specific bank behind each account.
Does Flagstone charge a fee?
Flagstone says it does not charge personal savers platform, admin, or management fees. It explains that it receives a share of the interest from bank partners before rates appear in the platform, up to 0.30% for savings accounts and up to 0.15% for its Cash ISA.
Is Raisin free to use?
Raisin says its UK platform is free to use. Its customer charter explains that it earns an intermediary fee from partner banks when savings accounts are opened through the marketplace. You should still compare the displayed rate and terms against direct bank offers.
What is the minimum deposit for Flagstone?
Flagstone states that individual or joint personal accounts require a minimum deposit of £10,000. Product terms can change, so check the current joining requirements directly before applying.
Can I rely on FSCS protection through a savings platform?
You can use FSCS protection as an important filter, but do not treat it as a blanket platform guarantee. FSCS limits apply per eligible person and authorised banking group. If you hold cash with the same group through different channels, those balances may be combined for protection purposes.
Which is better for easy access savings?
Raisin may be easier for smaller or simpler easy access comparisons because it presents itself as a broad retail savings marketplace. Flagstone can still offer instant access accounts, but its £10,000 minimum and holding-account flow make it more suitable for larger balances.
Source Notes
This article was checked on 3 July 2026 against official provider pages and public FSCS context. Key sources: Raisin UK homepage, Raisin About Us, Raisin Deposit Protection, Flagstone homepage, Flagstone How It Works, Flagstone Fees, and reporting on the UK FSCS limit change from The Guardian.