Compare our best fixed Cash ISA rates
Maximize your tax-free savings with the top fixed rate cash ISAs. Find the best deals and lock in high interest rates to ensure guaranteed returns.
Fixed Cash ISA deals
308 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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Hargreaves Lansdown Active Savings Chetwood Bank - 1 Year Fixed Term ISA
Term
23 Jul 2026
Open with
£1,000
Interest rate
4.35% 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 | 4.35% | 4.35% | 4.35% | 4.35% |
Eligibility
| Maximum Age | Unlimited |
| Minimum Initial Deposit | £1,000 |
| Minimum Age | 18 years |
| Permanent UK Resident |
Paragon 15 Month Fixed Rate Cash ISA
Term
15 months
Open with
£500
Interest rate
4.28% AER fixed
Protection scheme
FSCS
ISA transfers in
Accepted
Withdrawals and closure are permitted subject to 120 days interest penalty.
More Information
Rate Tiers
| Gross rate | Gross rate | AER rate | AER rate | |
|---|---|---|---|---|
| Excluding bonus | Including bonus | Excluding bonus | Including bonus | |
| £500 | 4.27% | 4.27% | 4.28% | 4.28% |
Eligibility
| Maximum Age | Unlimited |
| Minimum Initial Deposit | £500 |
| Minimum Age | 18 years |
| Permanent UK Resident |
Aldermore 1 Year Fixed Rate Cash ISA
Term
1 year
Open with
£1,000
Interest rate
4.2% AER fixed
Protection scheme
FSCS
ISA transfers in
Accepted
Withdrawals and closure permitted subject to 90 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 | 4.2% | 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
4.15% 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 | 4.15% | 4.15% | 4.15% | 4.15% |
Eligibility
| Maximum Age | Unlimited |
| Minimum Initial Deposit | £500 |
| Minimum Age | 18 years |
| Permanent UK Resident |
Aldermore 2 Year Fixed Rate Cash ISA
Term
2 years
Open with
£1,000
Interest rate
4.13% 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 | 4.13% | 4.13% | 4.13% | 4.13% |
Eligibility
| Maximum Age | Unlimited |
| Minimum Initial Deposit | £1,000 |
| Minimum Age | 18 years |
| Permanent UK Resident |
Yorkshire Building Society 4.10% Fixed Rate e-ISA to 31/08/2026
Term
31 Aug 2026
Open with
£100
Interest rate
4.1% AER fixed
Protection scheme
FSCS
ISA transfers in
Accepted
No withdrawals permitted before maturity. Early closure is permitted with the loss of 90 days interest.
More Information
Rate Tiers
| Gross rate | Gross rate | AER rate | AER rate | |
|---|---|---|---|---|
| Excluding bonus | Including bonus | Excluding bonus | Including bonus | |
| £100 | 4.1% | 4.1% | 4.1% | 4.1% |
Eligibility
| Maximum Age | Unlimited |
| Minimum Initial Deposit | £100 |
| Minimum Age | 18 years |
| Minimum Monthly Investment | £10 |
| Permanent UK Resident |
Leeds Building Society 1 Year Fixed Rate ISA Issue 221
Term
02 Sep 2026
Open with
£100
Interest rate
4% AER fixed
Protection scheme
FSCS
ISA transfers in
Accepted
Withdrawals are 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 | |
| £100 | 4% | 4% | 4% | 4% |
Eligibility
| Maximum Age | Unlimited |
| Minimum Initial Deposit | £100 |
| Minimum Age | 18 years |
| Minimum Monthly Investment | £1 |
| Permanent UK Resident |
Royal Bank of Scotland 1 Year Fixed Rate ISA Issue 378
Term
20 Aug 2026
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 31/07/2025 to new customers and 05/08/2025 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 |
NatWest 1 Year Fixed Rate ISA Issue 378
Term
20 Aug 2026
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 31/07/2025 to new customers and 05/08/2025 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 - 5 Year Fixed Term ISA
Term
24 Jul 2030
Open with
£1,000
Interest rate
3.96% AER fixed
Protection scheme
FSCS
ISA transfers in
Not accepted
Withdrawals are not permitted during the term. Closure is permitted subject to 360 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 | 3.96% | 3.96% | 3.96% | 3.96% |
Eligibility
| Maximum Age | Unlimited |
| Minimum Initial Deposit | £1,000 |
| Minimum Age | 18 years |
| Permanent UK Resident |