This website uses cookies to improve user experience. By using our website you consent to all cookies in accordance with our Cookie Policy. Read more

This comparison simply includes all savings accounts.

Aldermore
Fixed Rate Cash ISA Aldermore
Min deposit £1000
Term 3 Years
Interest AER 5.03%

MARKET LEADING 3 YEAR FIXED RATE ISA

Why we like it

ISA transfers in also allowed. FSCS Protected. Withdraw cash early if you need to (subject to loss of interest

Details

Interest Paid Monthly or Annually
Maximum Balance £1,000,000
Minimum Age 18
UK Resident Yes
Aldermore
Fixed Rate Cash ISA Aldermore
Min deposit £1000
Term 2 Years
Interest AER 5.01%

MARKET LEADING 1 YEAR FIXED RATE ISA

Why we like it

ISA transfers in also allowed. FSCS Protected. Withdraw cash early if you need to (subject to loss of interest

Details

Interest Paid Monthly or Annually
Maximum Balance £1,000,000
Minimum Age 18
UK Resident Yes
Investec Savings
Fixed Rate Cash ISA Investec Savings
Min deposit £1000
Term 1 Year
Interest AER 4.85%

MARKET LEADING 1 YEAR FIXED RATE ISA

Why we like it

ISA transfers in also allowed. Open and manage online. FSCS Protected. Withdrawals permitted subject to 90 days lost interest

Details

Interest Paid Annually
Maximum Balance £1,000,000
Minimum Age 18
UK Resident Yes
RCI Bank
Fixed Rate Cash ISA RCI Bank
Min deposit £1000
Term 2 Years
Interest AER 4.80%

Which? Recommended Savings Provider

Why we like it

ISA transfers in up to a maximum account balance of £1,000,000. FSCS Protected. 180 day interest charge on early withdrawals

Details

Interest Paid Monthly or Annually
Maximum Balance £1,000,000
Minimum Age 18
UK Resident Yes
Aldermore
Fixed Rate Cash ISA Aldermore
Min deposit £1000
Term 1 Year
Interest AER 4.79%

Why we like it

ISA transfers in also allowed. FSCS Protected. Withdraw cash early if you need to (subject to loss of interest

Details

Interest Paid Monthly or Annually
Maximum Balance £1,000,000
Minimum Age 18
UK Resident Yes
NatWest
Fixed Rate Cash ISA NatWest
Min deposit £1000
Term 2 Years
Interest AER 4.75%

Why we like it

Terms and Conditions: You must be 18 or over and a UK Resident. Currently you can only subscribe to one Cash ISA with NatWest Bank per tax year. You must hold the account solely in your name. NatWest’s FRISA rates are 4.75% AER/Tax-free p.a. (fixed) for 1 year and 4.75% AER/Tax-free p.a. (fixed) for 2 years. Rate available until 5pm on 9th October 2026 for new customers and 12th October 2026 for existing customers. Offer may be withdrawn early due to limited availability. Interest is calculated daily and paid annually to your ISA on the first business day in April and on the Maturity Payment Date. You can withdraw money from your account up to 26th October 2026. If you want to make a withdrawal after this time and before the Maturity Date, you must close your account by giving written notice in branch. ISA subscription limits apply. If you make a payment into your Fixed Rate ISA you will not be able to make any further payments for that tax year into any other cash ISA with NatWest or Royal Bank of Scotland. Early Closure Charge applies. The Early Closure Charge will be the lower of the amount of interest earned on your account or 90 days’ interest. The Early Closure Charge will be deducted from the balance of your Fixed Rate ISA. The interest payable on the money held in your account is tax-free. The tax treatment may be subject to change in the future and depends on your individual circumstances.

Details

Interest Paid Monthly
Maximum Balance Not applicable
Minimum Age 18
UK Resident Yes
Royal Bank of Scotland
Fixed Rate Cash ISA Royal Bank of Scotland
Min deposit £1000
Term 2 Years
Interest AER 4.75%

Why we like it

Terms and Conditions: You must be 18 or over and a UK Resident. Currently you can only subscribe to one Cash ISA with NatWest Bank per tax year. You must hold the account solely in your name. NatWest’s FRISA rates are 4.75% AER/Tax-free p.a. (fixed) for 1 year and 4.75% AER/Tax-free p.a. (fixed) for 2 years. Rate available until 5pm on 9th October 2026 for new customers and 12th October 2026 for existing customers. Offer may be withdrawn early due to limited availability. Interest is calculated daily and paid annually to your ISA on the first business day in April and on the Maturity Payment Date. You can withdraw money from your account up to 26th October 2026. If you want to make a withdrawal after this time and before the Maturity Date, you must close your account by giving written notice in branch. ISA subscription limits apply. If you make a payment into your Fixed Rate ISA you will not be able to make any further payments for that tax year into any other cash ISA with NatWest or Royal Bank of Scotland. Early Closure Charge applies. The Early Closure Charge will be the lower of the amount of interest earned on your account or 90 days’ interest. The Early Closure Charge will be deducted from the balance of your Fixed Rate ISA. The interest payable on the money held in your account is tax-free. The tax treatment may be subject to change in the future and depends on your individual circumstances.

Details

Interest Paid Monthly
Maximum Balance Not applicable
Minimum Age 18
UK Resident Yes
NatWest
Fixed Rate Cash ISA NatWest
Min deposit £1000
Term 1 Year
Interest AER 4.75%

Why we like it

Terms and Conditions: You must be 18 or over and a UK Resident. Currently you can only subscribe to one Cash ISA with NatWest Bank per tax year. You must hold the account solely in your name. NatWest’s FRISA rates are 4.75% AER/Tax-free p.a. (fixed) for 1 year and 4.75% AER/Tax-free p.a. (fixed) for 2 years. Rate available until 5pm on 9th October 2026 for new customers and 12th October 2026 for existing customers. Offer may be withdrawn early due to limited availability. Interest is calculated daily and paid annually to your ISA on the first business day in April and on the Maturity Payment Date. You can withdraw money from your account up to 26th October 2026. If you want to make a withdrawal after this time and before the Maturity Date, you must close your account by giving written notice in branch. ISA subscription limits apply. If you make a payment into your Fixed Rate ISA you will not be able to make any further payments for that tax year into any other cash ISA with NatWest or Royal Bank of Scotland. Early Closure Charge applies. The Early Closure Charge will be the lower of the amount of interest earned on your account or 90 days’ interest. The Early Closure Charge will be deducted from the balance of your Fixed Rate ISA. The interest payable on the money held in your account is tax-free. The tax treatment may be subject to change in the future and depends on your individual circumstances.

Details

Interest Paid Monthly
Maximum Balance Not applicable
Minimum Age 18
UK Resident Yes
Royal Bank of Scotland
Fixed Rate Cash ISA Royal Bank of Scotland
Min deposit £1000
Term 1 Year
Interest AER 4.75%

Why we like it

Terms and Conditions: You must be 18 or over and a UK Resident. Currently you can only subscribe to one Cash ISA with NatWest Bank per tax year. You must hold the account solely in your name. NatWest’s FRISA rates are 4.75% AER/Tax-free p.a. (fixed) for 1 year and 4.75% AER/Tax-free p.a. (fixed) for 2 years. Rate available until 5pm on 9th October 2026 for new customers and 12th October 2026 for existing customers. Offer may be withdrawn early due to limited availability. Interest is calculated daily and paid annually to your ISA on the first business day in April and on the Maturity Payment Date. You can withdraw money from your account up to 26th October 2026. If you want to make a withdrawal after this time and before the Maturity Date, you must close your account by giving written notice in branch. ISA subscription limits apply. If you make a payment into your Fixed Rate ISA you will not be able to make any further payments for that tax year into any other cash ISA with NatWest or Royal Bank of Scotland. Early Closure Charge applies. The Early Closure Charge will be the lower of the amount of interest earned on your account or 90 days’ interest. The Early Closure Charge will be deducted from the balance of your Fixed Rate ISA. The interest payable on the money held in your account is tax-free. The tax treatment may be subject to change in the future and depends on your individual circumstances.

Details

Interest Paid Monthly
Maximum Balance Not applicable
Minimum Age 18
UK Resident Yes
moneybox
Cash ISA moneybox
Min deposit £500
Term Easy Access
Interest AER 4.71%

The Moneybox Cash ISA includes a 3.45% AER variable underlying rate and a bonus rate of 1.26% for the first 12 months (bonus only applicable to new ISA deposits. ISA transfers in receive  the underlying rate only)

Why we like it

Up to three withdrawals can be made within each 12-month period from the date of opening without affecting the interest rate. Customers can transfer in any ISAs they hold with other providers into a Moneybox Cash ISA, on web and in-app. If more than three withdrawals made within each 12-month period, a lower rate of 0.75% (variable) will be applied for the rest of that 12-month period. The lower interest rate of 0.75% will also apply if the account balance dips below £500, automatically returning to the higher interest rate when the balance returns to £500 or more again. Covered by FSCS

Details

Interest Paid Annually
Maximum Balance Unlimited
Minimum Age 18
UK Resident Yes
Plum
Cash ISA Plum
Min deposit £1
Term Easy Access
Interest AER 4.68%

Includes a 2.54% AER variable underlying rate and a bonus rate of 2.14% for 12 months

Why we like it

Transfer in any ISAs you hold with other providers. Interest rates drop if more than three withdrawals per year. Rate when you transfer in your existing ISA - 3.75% AER (variable). Rate for each 12-month period after your first 12 months -2.54% AER (variable). Rate when balance drops below £100 or after your fourth annual withdrawal - 2.54% AER (variable). Covered by FSCS

Details

Interest Paid Monthly
Maximum Balance Unlimited
Minimum Age 18
UK Resident Yes
Yorkshire Building Society
Fixed Rate Cash ISA Yorkshire Building Society
Min deposit £100
Term 3 Years
Interest AER 4.65%

Why we like it

ISA transfers in also allowed. Tax free interest. FSCS Protected. No withdrawals permitted. Closure permitted with 270 days' loss of interest

Details

Interest Paid Annually
Maximum Balance £2,000,000
Minimum Age 18
UK Resident Yes
load more

Instant Access ISA

If you wish to access a fixed interest rate without necessarily tying up your money for a set period of time, you may want to open an Instant Access ISA.

An Instant Access ISA is an account that you can use to put your savings in and make your savings work harder for you.

An Instant Access ISA account has both the advantages of an ISA and some of the flexibility of an instant cash savings account.

If choose to open an Instant Access ISA, you will be able to withdraw as much as you like from the account, and providing you replace it within the same tax year it will not count towards your annual ISA allowance.

The ability to access your savings whilst enjoying competitive interest may help you to achieve your savings goals. Find our savings rates table above for the latest interest rate deals. 

Features of an Instant Access ISA

You may benefit from opening an Instant Access ISA: 

  • No income tax – unlike other financial products the interest you earn in your ISA is not subject to tax
  • Easy access – If you wish to open an Instant Access ISA, as opposed to a fixed rate cash ISA, you will benefit from competitive interest as well as easy access to your money, should you need it
  • No need to declare – you are not obliged to declare your cash ISA or any interest you get from your ISA on your tax return
  • Straightforward transfers – you have the option to transfer your cash ISA to another provider if you find a better interest rate

Latest news

Popular Fixed Income Plan - Pays 6% pa with Monthly Income

Are you getting 6% fixed from your capital?  Read More »

Newsletter signup

Sign up to our Newsletter to get exclusive news and offers direct to your inbox.

Let's get social now! Twitter Facebook

About us

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.