3 Year Fixed Rate Cash ISAs

3 Year Fixed Rate Cash ISAs

Compare 3 Year Fixed Rate ISAs

Deposit Plan Offer

Looking for a Capital Protected alternative to Cash?

Potential 25% after 4 years 

  • Potential 25% if the FTSE 100 does not fall by more than 10% after 4 years
  • Equivalent to 6.25% per year
  • 4 year term
  • Available as cash ISA, non ISA or ISA transfer
  • Capital Protected – receive your initial capital back at the end of the term no matter how the FTSE 100 performs
Our view: The 25% potential return is equivalent to 6.25% growth each year which is significantly more than the current leading longer term savings rates More Plan Details »
Account
Hampshire Trust Bank 1 Year Cash ISA
Interest Rate
4.41%
Gross/AER
Term
1 Year
Minimum Deposit
£1
Account
Hampshire Trust Bank 2 Year Cash ISA
Interest Rate
4.31%
Gross/AER
Term
2 Years
Minimum Deposit
£1
Account
Aldermore Bank 1 Year Cash ISA
Interest Rate
4.20%
Gross/AER
Term
1 Year
Minimum Deposit
£1,000
Account
Aldermore Bank 2 Year Cash ISA
Interest Rate
4.15%
Gross/AER
Term
2 Years
Minimum Deposit
£1,000
Account
Post Office Online 1 Year Fixed Rate Cash ISA
Interest Rate
4.15%
Gross/AER
Term
1 Year
Minimum Deposit
£500
Account
Leeds Building Society 1 Year Cash ISA
Interest Rate
4.10%
Gross/AER
Term
1 Year
Minimum Deposit
£100
Account
Leeds Building Society 2 Year Cash ISA
Interest Rate
4.10%
Gross/AER
Term
2 Years
Minimum Deposit
£100
Account
NatWest 1 Year Cash ISA
Interest Rate
4.00%
Gross/AER
Term
1 Year
Minimum Deposit
£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 3.75% AER/Tax-free p.a. (fixed) for 2 years. Rate available until 5pm on 12th March 2025 for new customers and 17th March 2025 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 Offer may be withdrawn early due to limited availability.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 4th April 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.
Account
Royal Bank of Scotland 1 Year Cash ISA
Interest Rate
4.00%
Gross/AER
Term
1 Year
Minimum Deposit
£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 Royal Bank of Scotland per tax year. You must hold the account solely in your name. Royal Bank of Scotland’s  FRISA rates are 4.00% AER/Tax-free p.a. (fixed) for 1 year and 3.75% AER/Tax-free p.a. (fixed) for 2 years. Rate available until 5pm on 12th March 2025 for new customers and 17th March 2025 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 4th April 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 Royal Bank of Scotland or NatWest. Early Closure Charge applies. The Early Closure Charge will be the lower of the amount of interest earned on your account of 90 day’s 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.
Account
Nationwide 1 Year Triple Access Cash ISA
Interest Rate
Up to 4.00%
Gross/AER
Term
1 Year, with option to make three free withdrawals
Minimum Deposit
£1
Account
Leeds Building Society 3 Year Cash ISA
Interest Rate
3.90%
Gross/AER
Term
3 Years
Minimum Deposit
£100
Account
Post Office Online 2 Year Fixed Rate Cash ISA
Interest Rate
3.85%
Gross/AER
Term
2 Years
Minimum Deposit
£500
Account
NatWest 2 Year Cash ISA
Interest Rate
3.75%
Gross/AER
Term
2 Years
Minimum Deposit
£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 3.75% AER/Tax-free p.a. (fixed) for 2 years. Rate available until 5pm on 12th March 2025 for new customers and 17th March 2025 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 4th April 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.
Account
Royal Bank of Scotland 2 Year Cash ISA
Interest Rate
3.75%
Gross/AER
Term
2 Years
Minimum Deposit
£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 Royal Bank of Scotland per tax year. You must hold the account solely in your name. Royal Bank of Scotland’s  FRISA rates are 4.00% AER/Tax-free p.a. (fixed) for 1 year and 3.75% AER/Tax-free p.a. (fixed) for 2 years. Rate available until 5pm on 12th March 2025 for new customers and 17th March 2025 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 4th April 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 Royal Bank of Scotland or NatWest. Early Closure Charge applies. The Early Closure Charge will be the lower of the amount of interest earned on your account of 90 day’s 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.
Account
Aldermore Bank 3 Year Cash ISA
Interest Rate
4.00%
Gross/AER
Term
3 Years
Minimum Deposit
£1,000
Account
Hampshire Trust Bank 5 Year Cash ISA
Interest Rate
3.75%
Gross/AER
Term
5 Years
Minimum Deposit
£1
Account
Leeds Building Society 5 Year Cash ISA
Interest Rate
3.75%
Gross/AER
Term
5 Years
Minimum Deposit
£100
Account
Chip Easy Access Cash ISA
Interest Rate
5.25%
AER*
Term
Instant Access
Minimum Deposit
£1
Account
moneybox Cash ISA
Interest Rate
5.00%*
AER
Term
Easy Access
Minimum Deposit
£500
Account
Plum Cash ISA
Interest Rate
5.01%*
AER
Term
Easy Access
Minimum Deposit
£1
Account
Lightyear Cash ISA
Interest Rate
4.50%
AER
Term
Easy Access
Minimum Deposit
£1
Account
Post Office Online Easy Access Cash ISA
Interest Rate
4.40%
Gross/AER
Term
Instant Access
Minimum Deposit
£100
Account
Aldermore Bank Easy Access Cash ISA
Interest Rate
3.80%
Gross/AER
Term
Instant Access
Minimum Deposit
£1,000
Account
Hampshire Trust Bank Online Easy Access Cash ISA
Interest Rate
4.15%
AER
Term
Instant Access
Minimum Deposit
£1
Account
Hampshire Trust Bank Online Easy Access Cash ISA
Interest Rate
3.40%
AER
Term
Instant Access
Minimum Deposit
£1
Account
Nationwide 1 Year Triple Access Cash ISA
Interest Rate
Up to 4.00%
Gross/AER
Term
1 Year, with option to make three free withdrawals
Minimum Deposit
£1
Account
Aldermore Bank 30 Day Notice Cash ISA
Interest Rate
3.85%
Gross/AER
Term
30 Day Notice
Minimum Deposit
£1,000
Plan Name

MB UK 4Y 80 Growth Deposit Plan

Potential Return
21.8%
at end of term
Term
4 years
ISA Option

Deposit Taker: Barclays Bank plc

Important Information: This is a structured deposit plan and is capital protected. There is a risk that the company backing the plan or any company associated with the plan may be unable to repay your initial investment and any returns stated. In this event you may be entitled to compensation from the  Financial Services Compensation Scheme (FSCS), depending on your individual circumstances. In addition, you may not get back the full amount of your initial investment if the plan is not held for the full term.

Plan Name

MB UK 6Y Annual Step Down to 80 Kick Out Deposit Plan Y2

Potential Return
5.35%
per annum
Term
Up to 6 years
ISA Option

Deposit Taker: Barclays Bank plc

Important Information: This is a structured deposit plan and is capital protected. There is a risk that the company backing the plan or any company associated with the plan may be unable to repay your initial investment and any returns stated. In this event you may be entitled to compensation from the  Financial Services Compensation Scheme (FSCS), depending on your individual circumstances. In addition, you may not get back the full amount of your initial investment if the plan is not held for the full term.

Plan Name

MB UK 4Y Monthly Fixed Interest Deposit Plan

Annual Income
4.32%
fixed income per year, paid monthly
Term
4 years
ISA Option

Deposit Taker: Barclays Bank plc

Important Information: This is a structured deposit plan and is capital protected. There is a risk that the company backing the plan or any company associated with the plan may be unable to repay your initial investment and any returns stated. In this event you may be entitled to compensation from the  Financial Services Compensation Scheme (FSCS), depending on your individual circumstances. In addition, you may not get back the full amount of your initial investment if the plan is not held for the full term.

Plan Name

MB UK 4Y 90 Growth Deposit Plan

Potential Return
25%
at end of term
Term
4 years
ISA Option

Deposit Taker: Barclays Bank plc

Important Information: This is a structured deposit plan and is capital protected. There is a risk that the company backing the plan or any company associated with the plan may be unable to repay your initial investment and any returns stated. In this event you may be entitled to compensation from the  Financial Services Compensation Scheme (FSCS), depending on your individual circumstances. In addition, you may not get back the full amount of your initial investment if the plan is not held for the full term.

3 Year Fixed Rate Cash ISAs

Use the comparison tables on this page to compare 3 year fixed rate cash ISAs from a range of leading providers, as well as a wide choice of other terms, to find the best option for you.

Features of fixed cash ISAs can include:

  • Fixed rate return on your savings
  • No tax to pay on the interest
  • Choice of fixed terms from 1-5 years
  • Usually no withdrawals allowed during the term

What is a 3 Year fixed rate ISA?

A 3 year fixed rate Cash ISA will provide a fixed rate of interest over a period of 36 months, this means that savers will be required to lock their money away for this period of time without easy access to it.  

How does a 3 year fixed rate ISA operate?  

Usually, a three year fixed rate ISA will require you to lock your cash within the account for that period of time. Some accounts may allow early full or partial withdrawals; however there is normally an interest based penalty for doing so, which means you could get back less than you originally put into the account.  

In return for locking your cash within the account, providers will offer an interest rate on the account that is fixed. This means that the rate of interest you are paid will not vary over the three years you receive it, so you can work out exactly how much you stand to earn in interest over the course of the ISA. This also means that you can try to protect your capital from falling interest rates; conversely if other interest rates improved your rate could become uncompetitive.  

Fixed rate ISAs also commonly have a minimum deposit amount required to open or transfer-in to the account.  

Other types of ISA  

In addition to 3 year products there are also fixed rates ISAs available for both shorter and longer periods such as; 1, 2 and 5 year fixed rate ISAs. 

Generally speaking with fixed rate ISAs the longer the account requires a saver to lock their cash away for the better the rate of interest offered.  

There are also other kinds of Cash ISA, such as Instant and Easy Access ISAs. These products usually allow savers to make withdrawals whenever they want without incurring a penalty for doing so.  

Before opening a Cash ISA 

Eligible individuals are only allowed to open one Cash ISA each tax year (although they may be able to transfer to another). As such it can be wise to shop around different providers and accounts before taking one out, to try and find the product that fits your savings needs best.

You can use the tables above on this webpage and elsewhere on the site to view a selection of different kinds of ISA, and follow the links to find out more or apply  

Compare fixed cash ISAs to get the best rates for the account that best suits your needs.