Marsden Building Society 5 Year Fixed Rate Cash ISA Review4.77% AER (Sep 2026)

Cash ISA from Marsden Building Society

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Protection

FSCS

Up to £120,000

Min balance

£5,000

Max balance

£250,000

Access

Until 30.09.2031

Interest paid

Monthly/
Annually

Transfers in

Accepted

Rate Tiers

Online4.87%

In branch4.77%

Who Is This For

Learn more about Marsden Building Society

Savers happy with a £250,000 cap
Savers who can deposit at least £5,000

Additional Info

Matures 30 September 2031. Available online or in branch. Both options offer annual or monthly interest and accept Cash ISA transfers at opening.

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Estimated returns with Marsden Building Society's Cash ISA

Want to know how much interest you will receive with Marsden Building Society's 5 Year Fixed Rate Cash ISA?

Estimated interest

£5,000 saved

£239

At 4.77% AER

£10,000 saved

£477

At 4.77% AER

£50,000 saved

£2,385

At 4.77% AER

£250,000 saved

£11,925

At 4.77% AER

Estimated over one year, assuming the rate stays the same and interest stays in the account. Amounts outside this account's minimum or maximum balance are left out.

Our Expert Opinion on Marsden Building Society 5 Year Fixed Rate Cash ISA

This account suits someone who wants to lock ISA savings away at 4.77% and is comfortable not touching the money until 30 September 2031. You need at least £5,000 to open it, and it accepts ISA transfers in, which is useful if you want to consolidate existing ISA pots. The real catch is the access restriction: your money is tied up until that fixed maturity date, so if rates rise or your circumstances change, you have no flexibility. If you want the same 4.77% rate with far less commitment, Skipton Building Society also offers a five-year fixed rate cash ISA at the same rate, and OakNorth Bank matches it over just twelve months.
Jonny Pease (Co-Founder)DepositScout