Compare fixed rate cash ISAs
Is my money safe?
The FSCS guarantees that the first £120,000 you have saved with a registered bank or building society will be safe even if the business goes bust. However, we can't guarantee that all non-affiliated products on our panel are covered by the FSCS.
318 results found, sorted by highest interest rate. We always order products with our partners first and we may receive a small commission if you click on the deal and then purchase it. Find out how we order our comparisons.
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Investec 1-Year Fixed Rate Cash ISA
Term
1 year
Open with
£1,000
Interest rate
4.27% AER fixed
Protection scheme
FSCS
ISA transfers in
Not accepted
No withdrawals permitted during the term of the account. Closure permitted subject to 90 day interest penalty.
More Information
Rate Tiers
| Gross rate | Gross rate | AER rate | AER rate | |
|---|---|---|---|---|
| Excluding bonus | Including bonus | Excluding bonus | Including bonus | |
| £1,000 | 4.27% | 4.27% | 4.27% | 4.27% |
Eligibility
| Maximum Age | Unlimited |
| Minimum Initial Deposit | £1,000 |
| Minimum Age | 18 years |
| Permanent UK Resident |
NatWest 1 Year Fixed Rate ISA Issue 386
Term
07 Jan 2027
Open with
£1,000
Interest rate
4.2% AER fixed
Protection scheme
FSCS
ISA transfers in
Accepted
UK residents, 18+, sole accounts only. Must be the only cash ISA subscribed to this tax year. Criteria, conditions & early closure charges apply. Available until 05:00 PM on 11/12/2025 to new customers and 16/12/2025 to existing customers. May be withdrawn early.
Withdrawals are not permitted. Closure is subject to a penalty equal to the amount of interest earned on the account or 90 days' loss of interest, whichever is lower, although capital is guaranteed.
More Information
Rate Tiers
| Gross rate | Gross rate | AER rate | AER rate | |
|---|---|---|---|---|
| Excluding bonus | Including bonus | Excluding bonus | Including bonus | |
| £1,000 | 4.2% | 4.2% | 4.2% | 4.2% |
Eligibility
| Maximum Age | Unlimited |
| Minimum Initial Deposit | £1,000 |
| Minimum Age | 18 years |
| Permanent UK Resident |
Paragon 1 Year Fixed Rate ISA
Term
1 year
Open with
£500
Interest rate
4.05% AER fixed
Protection scheme
FSCS
ISA transfers in
Accepted
Withdrawals and closure are permitted subject to 90 days interest penalty.
More Information
Rate Tiers
| Gross rate | Gross rate | AER rate | AER rate | |
|---|---|---|---|---|
| Excluding bonus | Including bonus | Excluding bonus | Including bonus | |
| £500 | 4.05% | 4.05% | 4.05% | 4.05% |
Eligibility
| Maximum Age | Unlimited |
| Minimum Initial Deposit | £500 |
| Minimum Age | 18 years |
| Permanent UK Resident |
Aldermore 3 Year Fixed Rate Cash ISA
Term
3 years
Open with
£1,000
Interest rate
4.02% AER fixed
Protection scheme
FSCS
ISA transfers in
Accepted
Withdrawals and closure permitted subject to 180 days loss of interest penalty.
More Information
Rate Tiers
| Gross rate | Gross rate | AER rate | AER rate | |
|---|---|---|---|---|
| Excluding bonus | Including bonus | Excluding bonus | Including bonus | |
| £1,000 | 4.02% | 4.02% | 4.02% | 4.02% |
Eligibility
| Maximum Age | Unlimited |
| Minimum Initial Deposit | £1,000 |
| Minimum Age | 18 years |
| Permanent UK Resident |
Aldermore 2 Year Fixed Rate Cash ISA
Term
2 years
Open with
£1,000
Interest rate
4.01% AER fixed
Protection scheme
FSCS
ISA transfers in
Accepted
Withdrawals and closure permitted subject to 180 days loss of interest penalty.
More Information
Rate Tiers
| Gross rate | Gross rate | AER rate | AER rate | |
|---|---|---|---|---|
| Excluding bonus | Including bonus | Excluding bonus | Including bonus | |
| £1,000 | 4.01% | 4.01% | 4.01% | 4.01% |
Eligibility
| Maximum Age | Unlimited |
| Minimum Initial Deposit | £1,000 |
| Minimum Age | 18 years |
| Permanent UK Resident |
Claim a £10 Amazon.co.uk Gift Card. Offer may be withdrawn at any time. T&Cs apply.
Santander 1 Year Fixed Rate ISA
Term
01 Dec 2026
Open with
£500
Interest rate
4% AER fixed
Protection scheme
FSCS
ISA transfers in
Accepted
Access to a free 12-month KidsPass membership worth £39.99 + claim a £10 Amazon Gift Card when you open a savings account or cash ISA. Offers may be withdrawn at any time. Full T&Cs apply.
You can only pay into one Santander cash ISA each tax year. A tax year runs from 6 April in one year to 5 April the next. The ISA allowance for the 2025/26 tax year is £20,000. Deposits can be made up to and including 5 April 2026.
More Information
Rate Tiers
| Gross rate | Gross rate | AER rate | AER rate | |
|---|---|---|---|---|
| Excluding bonus | Including bonus | Excluding bonus | Including bonus | |
| £500 | 4% | 4% | 4% | 4% |
Eligibility
| Maximum Age | Unlimited |
| Minimum Initial Deposit | £500 |
| Minimum Age | 18 years |
| Permanent UK Resident |
NatWest 2 Year Fixed Rate ISA Issue 387
Term
07 Jan 2028
Open with
£1,000
Interest rate
4% AER fixed
Protection scheme
FSCS
ISA transfers in
Accepted
UK residents, 18+, sole accounts only. Must be the only cash ISA subscribed to this tax year. Criteria, conditions & early closure charges apply. Available until 05:00 PM on 11/12/2025 to new customers and 16/12/2025 to existing customers. May be withdrawn early.
Withdrawals are not permitted. Closure is subject to a penalty equal to the amount of interest earned on the account or 90 days' loss of interest, whichever is lower, although capital is guaranteed.
More Information
Rate Tiers
| Gross rate | Gross rate | AER rate | AER rate | |
|---|---|---|---|---|
| Excluding bonus | Including bonus | Excluding bonus | Including bonus | |
| £1,000 | 4% | 4% | 4% | 4% |
Eligibility
| Maximum Age | Unlimited |
| Minimum Initial Deposit | £1,000 |
| Minimum Age | 18 years |
| Permanent UK Resident |
Hargreaves Lansdown Active Savings Chetwood Bank - 1 Year Fixed Term ISA
Term
03 Dec 2026
Open with
£1,000
Interest rate
4% AER fixed
Protection scheme
FSCS
ISA transfers in
Not accepted
Withdrawals are not permitted during the term. Closure is permitted subject to 90 days loss of interest.
More Information
Rate Tiers
| Gross rate | Gross rate | AER rate | AER rate | |
|---|---|---|---|---|
| Excluding bonus | Including bonus | Excluding bonus | Including bonus | |
| £1,000 | 4% | 4% | 4% | 4% |
Eligibility
| Maximum Age | Unlimited |
| Minimum Initial Deposit | £1,000 |
| Minimum Age | 18 years |
| Permanent UK Resident |
Paragon 5 Year Fixed Rate ISA
Term
5 years
Open with
£500
Interest rate
3.95% AER fixed
Protection scheme
FSCS
ISA transfers in
Accepted
Withdrawals and closure are permitted subject to 365 days interest penalty.
More Information
Rate Tiers
| Gross rate | Gross rate | AER rate | AER rate | |
|---|---|---|---|---|
| Excluding bonus | Including bonus | Excluding bonus | Including bonus | |
| £500 | 3.95% | 3.95% | 3.95% | 3.95% |
Eligibility
| Maximum Age | Unlimited |
| Minimum Initial Deposit | £500 |
| Minimum Age | 18 years |
| Permanent UK Resident |
Paragon 2 Year Fixed Rate ISA
Term
2 years
Open with
£500
Interest rate
3.9% AER fixed
Protection scheme
FSCS
ISA transfers in
Accepted
Withdrawals and closure are permitted subject to 180 days interest penalty.
More Information
Rate Tiers
| Gross rate | Gross rate | AER rate | AER rate | |
|---|---|---|---|---|
| Excluding bonus | Including bonus | Excluding bonus | Including bonus | |
| £500 | 3.9% | 3.9% | 3.9% | 3.9% |
Eligibility
| Maximum Age | Unlimited |
| Minimum Initial Deposit | £500 |
| Minimum Age | 18 years |
| Permanent UK Resident |