Post Office Fixed Rate ISAs

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1 Year Fixed Rate Cash ISA

from Post Office Money

Interest Rate (AER) 4.00%
  • Term: 1 Year
  • Invest From: £500

Interest paid annually. ISA transfers also allowed in (some providers charge a transfer fee). Open and manage online. FSCS Protected. Must be UK resident and be aged 18 or older. 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

2 Year Fixed Rate Cash ISA

from Post Office Money

Interest Rate (AER) 3.65%
  • Term: 2 Years
  • Invest From: £500

Interest paid annually. ISA transfers also allowed in (some providers charge a transfer fee). Open and manage online. FSCS Protected. Must be UK resident and be aged 18 or older. Withdrawals permitted subject to 180 days loss of interest. Online ISA is provided by OneFamily, savings in Post Office Cash ISAs are deposited with Bank of Ireland UK

1 Year Fixed Rate Cash ISA

from Aldermore

Interest Rate (AER) 4.30%
  • Term: 1 Year
  • Invest From: £1,000

ISA transfers in allowed. FSCS Protected. Must be UK resident and aged 16 or older. Withdraw cash early if you need to (subject to loss of interest)

1 Year Fixed Rate Cash ISA

from Hampshire Trust Bank

Interest Rate (AER) 4.50%
  • Term: 1 Year
  • Invest From: £1

Interest paid at maturity. ISA transfers also allowed in. Maximum deposit £250,000. FSCS Protected. Winner of Platinum Feefo Trusted Service Award in 2024. Must be UK resident and be aged 18 or older. No withdrawals permitted

2 Year Fixed Rate Cash ISA

from Aldermore

Interest Rate (AER) 4.30%
  • Term: 2 Years
  • Invest From: £1,000

ISA transfers in allowed. FSCS Protected. Must be UK resident and aged 16 or older. Withdraw cash early if you need to (subject to loss of interest)

2 Year Fixed Rate Cash ISA

from Hampshire Trust Bank

Interest Rate (AER) 4.25%
  • Term: 2 Years
  • Invest From: £1

Interest paid annually. ISA transfers also allowed in. Maximum deposit £250,000. FSCS Protected. Winner of Platinum Feefo Trusted Service Award in 2024. Must be UK resident and be aged 18 or older. No withdrawals permitted

1 Year Fixed Rate ISA

from NatWest

Interest Rate (AER) 4.00% Tax Free p.a. (Fixed)
  • Term: 1 Year
  • Invest From: £1,000

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 4.00% AER/Tax-free p.a. (fixed) for 1 year and 4.00% AER/Tax-free p.a. (fixed) for 2 years. Rate available until 5pm on 11th December 2024 for new customers and 16th December 2024 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 3rd January 2025. 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.

3 Year Fixed Rate Cash ISA

from Aldermore

Interest Rate (AER) 4.05%
  • Term: 3 Years
  • Invest From: £1,000

ISA transfers in allowed. FSCS Protected. Must be UK resident and aged 16 or older. Withdraw cash early if you need to (subject to loss of interest)

5 Year Fixed Rate Cash ISA

from Hampshire Trust Bank

Interest Rate (AER) 3.75%
  • Term: 5 Years
  • Invest From: £1

Interest paid annually. ISA transfers also allowed in. Maximum deposit £250,000. FSCS Protected. Winner of Platinum Feefo Trusted Service Award in 2024. Must be UK resident and be aged 18 or older. No withdrawals permitted

2 Year Fixed Rate ISA

from NatWest

Interest Rate (AER) 4.00% Tax Free p.a. (Fixed)
  • Term: 2 Years
  • Invest From: £1,000

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 4.00% AER/Tax-free p.a. (fixed) for 1 year and 4.00% AER/Tax-free p.a. (fixed) for 2 years. Rate available until 5pm on 11th December 2024 for new customers and 16th December 2024 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 3rd January 2025. 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.

The current ISA allowance is £20,000. Use our cash ISA tables below to compare a selection of market-leading cash ISAs for instant access, fixed rates and alternative ideas to maximise your tax free returns.

Review of Post Office Fixed Rate ISA

The Post Office offer a range of savings options with a competitive rate of interest. Please see the tables above for latest interest rates and comparison.

History

The Post office are the UK’s largest retail network and the largest financial services chain in the UK with more branches than all of the UK’s banks and building societies combined. They also have a growing amount of direct channels such as contact centres and online meaning they offer great customer service.

The Post Office Fixed Rate Cash ISA:

Features:

  1. A competitive fixed interest rate
  2. You must have a minimum of £500 to invest
  3. No access to your savings until the end of the agreed fixed term
  4. One year fixed term

Interest is calculated daily and paid annually on the anniversary of the account opening. After the end of the fixed rate term, interest is paid annually in March.

In order to open an account, you can:

Open with a single deposit from £500 to £20,000. You can’t make any additional deposits so you may lose the rest of your tax allowance if you don’t invest the whole amount.

You can also transfer an ISA from another provider, there is no upper limit to the value of ISAs you can transfer but it must be at least £500.

The Post Office offer a range of variable interest rate ISAs, bonds and savings account. Check our tables for more info about other options.

Why use a Fixed Rate ISA?

Typically, a fixed-rate Isa account will pay more interest. In exchange for a higher rate, banks will ask you to tie up your cash. Generally, the longer you give up access, the higher the return. As it is a guaranteed amount, you know what you will end up with at the end which makes it a lot safer than investing.

ISAs are a good idea whatever your savings goal. With certain types of cash ISAs, you have instant access to your money, which makes it a flexible way to plan your finances.

It’s also important to remember that ISA allowance limits apply to everyone on an individual basis, so if you’re married or in a relationship, you can both hold your own ISA, each with the full allowance. Meaning you can save over £30,000.

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Frequently Asked Questions

Am I committed to one ISA provider forever?

No. You can switch providers with an ISA transfer if you wish. You can also contribute to other ISA providers in separate tax years.

Can I have a Joint ISA?

No, ISA stands for Individual Savings Account and must be solely owned for tax purposes.

Are ISA accounts safe?

ISA accounts are authorised and regulated by the Financial Conduct Authority (FCA). This means that all ISA providers are covered by the Financial Services Compensation Scheme (FSCS) for up to £85,000 if they go out of business.

Please note that this may not apply to the underlying holdings within a Stocks and Shares ISA, and will not cover standard investment losses. 

Can I transfer my Cash ISA into a Stocks and Shares ISA?

Yes, you can transfer from your Cash ISA to a Stocks and Shares ISA at any time. However, do check you won’t lose out by transferring, as some Fixed Rate Cash ISAs may charge a fee or void your interest if you surrender your policy before the fixed term has ended