Compare fixed rate cash ISAs

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305 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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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 rateGross rateAER rateAER rate
Excluding bonusIncluding bonusExcluding bonusIncluding bonus
£5004.27%4.27%4.28%4.28%
Eligibility
Maximum AgeUnlimited
Minimum Initial Deposit£500
Minimum Age18 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 rateGross rateAER rateAER rate
Excluding bonusIncluding bonusExcluding bonusIncluding bonus
£5004.15%4.15%4.15%4.15%
Eligibility
Maximum AgeUnlimited
Minimum Initial Deposit£500
Minimum Age18 years
Permanent UK Resident

Skipton 15 Month Fixed Rate Cash ISA Issue 280.5

Term
15 months
Open with
£5,000
Interest rate
4.13% AER fixed
Protection scheme
FSCS
ISA transfers in
Accepted
Withdrawals are not allowed. Closure is permitted subject to 90 days loss of interest.
More Information
Rate Tiers
Gross rateGross rateAER rateAER rate
Excluding bonusIncluding bonusExcluding bonusIncluding bonus
£5,0004.13%4.13%4.13%4.13%
Eligibility
Maximum AgeUnlimited
Minimum Initial Deposit£5,000
Minimum Age18 years
Permanent UK Resident

Leeds Building Society 1 Year Fixed Rate ISA Issue 219

Term
03 Aug 2026
Open with
£100
Interest rate
4.12% AER fixed
Protection scheme
FSCS
ISA transfers in
Accepted
Withdrawals are subject to 90 days loss of interest.
More Information
Rate Tiers
Gross rateGross rateAER rateAER rate
Excluding bonusIncluding bonusExcluding bonusIncluding bonus
£1004.12%4.12%4.12%4.12%
Eligibility
Maximum AgeUnlimited
Minimum Initial Deposit£100
Minimum Age18 years
Minimum Monthly Investment£1
Permanent UK Resident

Royal Bank of Scotland 1 Year Fixed Rate ISA Issue 376

Term
29 Jul 2026
Open with
£1,000
Interest rate
4.1% 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 04/07/2025 to new customers and 09/07/2025 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 rateGross rateAER rateAER rate
Excluding bonusIncluding bonusExcluding bonusIncluding bonus
£1,0004.1%4.1%4.1%4.1%
Eligibility
Maximum AgeUnlimited
Minimum Initial Deposit£1,000
Minimum Age18 years
Permanent UK Resident

NatWest 1 Year Fixed Rate ISA Issue 376

Term
29 Jul 2026
Open with
£1,000
Interest rate
4.1% 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 04/07/2025 to new customers and 09/07/2025 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 rateGross rateAER rateAER rate
Excluding bonusIncluding bonusExcluding bonusIncluding bonus
£1,0004.1%4.1%4.1%4.1%
Eligibility
Maximum AgeUnlimited
Minimum Initial Deposit£1,000
Minimum Age18 years
Permanent UK Resident

Aldermore 2 Year Fixed Rate Cash ISA

Term
2 years
Open with
£1,000
Interest rate
4.06% 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 rateGross rateAER rateAER rate
Excluding bonusIncluding bonusExcluding bonusIncluding bonus
£1,0004.06%4.06%4.06%4.06%
Eligibility
Maximum AgeUnlimited
Minimum Initial Deposit£1,000
Minimum Age18 years
Permanent UK Resident

Aldermore 3 Year Fixed Rate Cash ISA

Term
3 years
Open with
£1,000
Interest rate
4.05% 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 rateGross rateAER rateAER rate
Excluding bonusIncluding bonusExcluding bonusIncluding bonus
£1,0004.05%4.05%4.05%4.05%
Eligibility
Maximum AgeUnlimited
Minimum Initial Deposit£1,000
Minimum Age18 years
Permanent UK Resident

Leeds Building Society 3 Year Fixed Rate ISA Issue 166

Term
31 Jul 2028
Open with
£100
Interest rate
4% AER fixed
Protection scheme
FSCS
ISA transfers in
Accepted
Withdrawals and closure subject to 240 days loss of interest.
More Information
Rate Tiers
Gross rateGross rateAER rateAER rate
Excluding bonusIncluding bonusExcluding bonusIncluding bonus
£1004%4%4%4%
Eligibility
Maximum AgeUnlimited
Minimum Initial Deposit£100
Minimum Age18 years
Minimum Monthly Investment£1
Permanent UK Resident

Leeds Building Society 5 Year Fixed Rate ISA Issue 159

Term
31 Jul 2030
Open with
£100
Interest rate
4% AER fixed
Protection scheme
FSCS
ISA transfers in
Accepted
Withdrawals and closure subject to 365 days loss of interest.
More Information
Rate Tiers
Gross rateGross rateAER rateAER rate
Excluding bonusIncluding bonusExcluding bonusIncluding bonus
£1004%4%4%4%
Eligibility
Maximum AgeUnlimited
Minimum Initial Deposit£100
Minimum Age18 years
Minimum Monthly Investment£1
Permanent UK Resident