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Home»Money»Marcus hikes one-year fixed rate savings deal to 4.55% – is it worth locking in?
Money

Marcus hikes one-year fixed rate savings deal to 4.55% – is it worth locking in?

By LucasOctober 17, 20255 Mins Read
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By SAM BROMLEY, MONEY & CONSUMER GUIDES WRITER

Updated: 16:46, 17 October 2025

Products featured in this article are independently selected by This is Money’s specialist journalists. If you open an account using links which have an asterisk, This is Money will earn an affiliate commission. We do not allow this to affect our editorial independence.

Savings provider Marcus has increased the rate on its one-year fixed rate saver to 4.55 per cent, making it a market leader according to rates scrutineer Moneyfacts.

The rate means it’s a best buy alongside similar options from challenger bank LHV and an account from Al Rayan Bank available through the savings platform Prosper*.

LHV is offering a 4.46 per cent rate on its one-year fixed bond. The account from Al Rayan Bank has a lower underlying rate of 4.25 per cent, which Prosper is boosting to 4.56 per cent.

We like the fixed saver from Marcus because there’s a low minimum deposit of £1. The minimum deposit with LHV is £1,000 and the minimum deposit with Al Rayan Bank is £10,000. However, Marcus has a lower maximum deposit than the other two accounts, at £250,000.

Before considering a one-year fixed saver, you should make sure you already have an emergency fund in an account which you can access at ay time. 

Taking money from a fixed bond before the term is up is not allowed. If you do it, you will incur a penalty which may be more than the interest earned. 

Locked away: A one-year fix guarantees your interest rate, but you can't access your money

Locked away: A one-year fix guarantees your interest rate, but you can’t access your money

Commenting on the Marcus deal, Adam French, head of news at Moneyfacts, said: ‘Savers looking for a guaranteed return in the short term may find this an appealing option. 

‘Earlier access is permitted on account closure and is subject to the loss of 90 days interest. Any additional deposits must be made within 14 days of opening the account.’

The deal scores an excellent Moneyfacts product rating. Keep in mind that these aren’t Isas, so your returns aren’t tax-free. Find out how the accounts compare below.

How do the accounts compare?

The rates on these accounts comfortably beat the base rate of 4 per cent.

Many experts predict the next rate cut won’t be until the new year – but whatever happens, locking in a 12-month fix means your rate won’t budge in line with the Bank of England’s decision.

Here are the top one-year fixed accounts to consider.

  • Minimum deposit: £1
  • Maximum deposit: £250,000
  • Interest paid: On maturity
  • Access to your money: By closing the account, subject to early closure fee
  • Minimum deposit: £10,000
  • Maximum deposit: £1million
  • Interest paid: On maturity (Prosper boost paid the week after maturity)
  • Access to your money: None 
  • Minimum deposit: £1,000
  • Maximum deposit: £1million
  • Interest paid: On maturity
  • Access to your money: None 

You need to open an LHV current account before you can open a savings account with the bank.

Why choose one of these accounts?

You could choose a top fixed-rate savings account when you’ve exhausted your tax-free Isa allowance.

> Read more: The best cash Isa rates  

Although the accounts above aren’t tax free, you do get a personal savings allowance that allows you to earn up to £1,000 of interest with no tax to pay:

Income tax band Personal savings allowance
Basic rate £1,000
Higher rate  £500 
Additional rate  £0 

When it comes to tax, the Prosper boost is unusual. According to the platform, HMRC regards it as a cashback discount when opening the account and not interest for tax purposes.

This means that if you deposited the minimum £10,000 with Al Rayan Bank through Prosper, only £425 would be counted as taxable interest, with the rest treated as tax-free cashback. You’ll have more of your personal savings allowance to play with elsewhere.

If you have a large amount to deposit, you should consider whether it would be better off invested. Investing isn’t without risk, but over the long-term investments have the potential to beat the returns you’d get in a cash account. Read more in our guide to investing for beginners.

And if you have some experience with investing already, have a look at our roundup of the best investment platforms.

Five of the best cash Isas

Products featured are independently selected by This is Money’s specialist journalists. If you open an account using links which have an asterisk, This is Money will earn an affiliate commission. We do not allow this to affect our editorial independence.

A cash Isa is an essential account for savers that protects you from tax on your interest.

This means that your pot can grow without tax dragging it back – something that is especially important for the growing number of 40 per cent taxpayers.

This is Money’s savings experts scour the market for the real best cash Isa deals – looking for top rates and accounts that come without catches to trip you up. 

Below you can find a run down of our top deals and you can check all the best cash Isa rates in our savings tables. 

Trading 212* – easy access – 4.51%

– Facts: £1 to open, no limit on withdrawals, 0.66% bonus for 12 months 

– Transfers in: Yes (bonus rate applies only on contributions made this tax year)

– Flexible: Yes

Tembo – one-year fix – 4.27%

– Facts: £500 to open, app only

– Transfers in: No

– Flexible: No

NatWest – one-year fix – 4.2% 

– Facts: £1,000 to open

– Transfers in: Yes 

– Flexible: No 

Cynergy Bank – two-year fix – 4.1%

– Facts: £500 to open

– Transfers in: Yes (must make a full transfer of contributions made this tax year; can choose partial or full transfer of previous tax year contributions) 

– Flexible: No 

Moneybox – cash Lifetime Isa – 4.3%

– Facts: £1 to open, 1.25% bonus for 12 months

– Transfers in: Yes (not partial transfers)

– Flexible: No 

> Read more in our full Five of the best cash Isas guide 

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Marcus hikes one-year fixed rate savings deal to 4.55% – is it worth locking in?



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