Flagstone review

Updated September 28, 2026 · VaultCue Editorial Team · Facts checked September 26, 2026

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Our verdict

Flagstone pays a fixed rate of 4.91% for 12 with a monthly fee of £0, so it suits savers with a sizeable lump sum who can leave the money alone for the term. The catch is entry, since a minimum deposit of £10,000 puts it out of reach for small balances.

Key facts

Best for
Savers with a large lump sum who want a fixed rate and no monthly fee.
Headline rate
4.91%↗
Rate type
Fixed↗
Term
12 months↗
Minimum deposit
£10,000↗
Deposit protection
FSCS up to GBP 85,000↗
Access terms
24/7 access to the Flagstone holding account; fixed-term deposits locked for the term↗
Monthly fee
£0↗
Account kind
Fixed↗
Legal entity
Flagstone Group Ltd↗
Headquarters
United Kingdom↗
Support channels
Email, Phone, Help-centre↗
Pricing model
No monthly fee, Fixed rate
Official website
flagstoneim.com

Facts checked September 26, 2026, 5 sources

Apps and profiles

Pros and cons

Pros

  • Fixed rate of 4.91% for 12, above the savings account median of 3.08%
  • A monthly fee of £0, in line with the savings account median of €0
  • Deposits sit under the FSCS up to GBP 85,000
  • Round-the-clock access to the holding account, with fixed-term deposits locked for the term

Cons

  • A minimum deposit of £10,000 sits well above the savings account median of €0.17
  • The 12 term keeps the deposit tied up for that whole period
  • On headline rate Flagstone places 104 of 473 among the brands compared
Flagstone

Ready to try Flagstone?

Scored 8.9 / 10 by VaultCue.

Who it suits

  • Savers holding a lump sum of £10,000 or more
  • Anyone who wants a fixed rate without a monthly fee
  • Businesses and investors parking spare cash for 12

Who should look elsewhere

  • Plazo ES, which advertises a headline rate of 24.19% and suits readers chasing the highest rate
  • PayPal Colombia, whose headline rate of 3.3% comes with a much smaller commitment
  • People who need to dip into the balance, since a fixed-term deposit is locked for 12

How Flagstone compares

Where Flagstone is available

Licence in United Kingdom
Financial Conduct Authority (605504), checked September 26, 2026

Countries from the brand (Source, checked September 26, 2026)

Frequently asked questions

What rate does Flagstone pay on its fixed savings?+

Flagstone pays a fixed rate of 4.91% for a term of 12. That sits above the savings account median of 3.08% and is a fixed rather than variable deal, so it is set for the whole term.

Is there a monthly fee?+

There is a monthly fee of £0, which matches the savings account median of €0. The account runs on a no-monthly-fee model, so the holding account and the fixed-term deposit are both covered by that.

How much do I need to deposit?+

The minimum deposit is £10,000. Flagstone places 365 of 370 on minimum deposit, and the amount sits above the savings account median of €0.17.

What kind of account is it?+

It is a fixed account, with both the rate and the term set when the deposit opens. The account kind is fixed and the rate type is fixed, and the money sits alongside a holding account that stays reachable while the fixed deposit runs its course.

When can I get my money out?+

The holding account stays open around the clock, while anything in a fixed deposit is tied up for the full term. With a term of 12, the money in the deposit would wait until the end of that period before it could be withdrawn.

Is my money protected?+

Deposits are covered by the FSCS up to GBP 85,000. The account belongs to Flagstone Group Ltd, based in the United Kingdom, and is regulated by the Financial Conduct Authority under reference 605504, so a fixed deposit here sits within the UK protection scheme.

How do I get help?+

Support runs on email, phone and help centre, so a phone line, an email address and a help centre are all available for the account. A call is the quickest route for anything urgent about a fixed deposit that is already running.

Sources

Compiled from 5 source pages, checked September 26, 2026. We did not open an account.

Flagstone

Flagstone

Savers with a large lump sum who want a fixed rate and no monthly fee.

8.9/10See alternatives