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This comparison simply includes all savings accounts.

OakNorth
Fixed Rate Cash ISA OakNorth
Min deposit £1
Term 12 Months
Interest AER 4.47%

Why we like it

ISA transfers also allowed in. FSCS Protected. No withdrawals permitted

Details

Interest Paid Monthly
Maximum Balance £500,000
Minimum Age 18
UK Resident Yes
Hampshire Trust Bank
Fixed Rate Cash ISA Hampshire Trust Bank
Min deposit £1
Term 1 Year
Interest AER 4.22%

Winner of Platinum Feefo Trusted Service Award in 2024

Why we like it

ISA transfers also allowed in. No withdrawals permitted. FSCS Protected

Details

Interest Paid At maturity
Maximum Balance £250,000
Minimum Age 18
UK Resident Yes
Post Office
Fixed Rate Cash ISA Post Office
Min deposit £500
Term 1 Year
Interest AER 4.15%

Why we like it

ISA transfers also allowed in (some providers charge a transfer fee). Open and manage online. Withdrawals permitted subject to 90 days loss of interest. Online ISA is provided by OneFamily, savings in Post Office Cash ISAs are deposited with Bank of Ireland UK. FSCS Protected

Details

Interest Paid At maturity
Maximum Balance Unlimited
Minimum Age 18
UK Resident Yes
Yorkshire Building Society
Fixed Rate e-ISA Yorkshire Building Society
Min deposit £100
Term 1 Year
Interest AER 4.15%

Why we like it

ISA transfers also allowed in. Tax free interest. FSCS Protected. Closure permitted with 90 days’ loss of interest

Details

Interest Paid At maturity
Maximum Balance £2,000,000
Minimum Age 18
UK Resident Yes
Hampshire Trust Bank
Fixed Rate Cash ISA Hampshire Trust Bank
Min deposit £1
Term 2 Years
Interest AER 4.31%

Winner of Platinum Feefo Trusted Service Award in 2024

Why we like it

ISA transfers also allowed in. No withdrawals permitted. FSCS Protected

Details

Interest Paid Annually
Maximum Balance £250,000
Minimum Age 18
UK Resident Yes
Leeds Building Society
Fixed Rate Cash ISA Leeds Building Society
Min deposit £100
Term 1 Year
Interest AER 4.10%

Why we like it

ISA transfers also allowed in. Open online, in branch or by post. FSCS Protected. Withdrawals permitted subject to 90 days lost interest

Details

Interest Paid Annually
Maximum Balance Unlimited
Minimum Age 18
UK Resident Yes
Leeds Building Society
Fixed Rate Cash ISA Leeds Building Society
Min deposit £100
Term 2 years
Interest AER 4.10%

Why we like it

ISA transfers also allowed in. Open online, in branch or by post. FSCS Protected. Withdrawals permitted subject to 180 days lost interest

Details

Interest Paid Annually
Maximum Balance Unlimited
Minimum Age 18
UK Resident Yes
Leeds Building Society
Fixed Rate Cash ISA Leeds Building Society
Min deposit £100
Term 3 years
Interest AER 4.00%

Why we like it

ISA transfers also allowed in. Open online, in branch or by post. FSCS Protected. Withdrawals permitted subject to 240 days lost interest

Details

Interest Paid Annually
Maximum Balance Unlimited
Minimum Age 18
UK Resident Yes
Leeds Building Society
Fixed Rate Cash ISA Leeds Building Society
Min deposit £100
Term 5 Years
Interest AER 4.00%

Why we like it

ISA transfers also allowed in. Open online, in branch or by post. FSCS Protected. Withdrawals permitted subject to 365 days lost interest

Details

Interest Paid Annually
Maximum Balance Unlimited
Minimum Age 18
UK Resident Yes
Post Office
Fixed Rate Cash ISA Post Office
Min deposit £500
Term 2 Years
Interest AER 3.85%

Why we like it

ISA transfers also allowed in (some providers charge a transfer fee). Open and manage online. Withdrawals permitted subject to 90 days loss of interest. Online ISA is provided by OneFamily, savings in Post Office Cash ISAs are deposited with Bank of Ireland UK. FSCS Protected

Details

Interest Paid Annually
Maximum Balance Unlimited
Minimum Age 18
UK Resident Yes
Hampshire Trust Bank
Fixed Rate Cash ISA Hampshire Trust Bank
Min deposit £1
Term 5 Years
Interest AER 3.75%

Winner of Platinum Feefo Trusted Service Award in 2024

Why we like it

ISA transfers also allowed in. No withdrawals permitted. FSCS Protected

Details

Interest Paid Annually
Maximum Balance £250,000
Minimum Age 18
UK Resident Yes

NatWest Fixed Rate ISA

NatWest, offer two kinds of tax-free ISA. Their Fixed Rate ISA and their Instant Cash ISA. Their Fixed Rate ISA allows you to:

  • Have a fixed interest rate on your cash ISA so you know in advance what your savings will earn
  • Choose a term that suits you, either one or two years
  • Keep all the interest - which helps your savings grow faster
  • Make transfers into the ISA, so you can bring all your ISAs together in one place
  • You will earn a higher rate of interest on the two year plan and for any amount above £25,000

Useful to Know

As this is a fixed rate ISA, you cannot withdraw your money during the agreed term. If you do choose to withdraw your money then you incur an early closure charge. They offer both one year and two year terms so be sure to pick one that’s right for you. Also:

  • The minimum deposit is £1,000
  • The early closure charge is the lower of the amount of interest earned on your account in 90 days.
  • You will need your National Insurance Number to apply for any ISA.

NatWest is one of the few banks that offer a fixed rate of ISA for one year, as many offer a two year minimum and some up to five year minimums. For many people this time frame isn’t convenient and so NatWest are offering an easy way for savers to take the plunge and begin their savings.

As NatWest is part of The Royal Bank of Scotland Group, you will find that they offer the same accounts and rates. However, they do not currently offer the highest rate of interest on the market.

Why use an ISA?

An ISA is a tax efficient way to save and stands for Individual Savings Account. An ISA lets you pay little or no tax on the interest of your savings and investments, making them a popular choice for saving large amounts of money.

They have become less popular since the new PSA (Personal Savings Allowance) has allowed lower rate tax payers to save up to £1000 tax-free and higher rate tax payers up to £500. As many current accounts are now offering competitive rates of interest, many people are moving away from ISAs.

As your tax-free amount is much higher in an ISA, there are still opportunities for savers to make the most of their money and this fixed rate account is a great option. 

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Simplysavingsaccounts.co.uk is a trading style of Fair Investment Company Ltd.

We've been comparing savings and current accounts for many years so you can trust you're in good hands.