<Cash ISAs

Compare our best cash ISA rates

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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.
34 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.

Investec 1-Year Fixed Rate Cash ISA

Term
1 year
Open with
£1,000
Interest rate
4.3% 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 rateGross rateAER rateAER rate
Excluding bonusIncluding bonusExcluding bonusIncluding bonus
£1,0004.3%4.3%4.3%4.3%
Eligibility
Maximum AgeUnlimited
Minimum Initial Deposit£1,000
Minimum Age18 years
Permanent UK Resident

Plum Cash ISA

Term
Instant access
Open with
Any amount
Interest rate
4.28% AER variable on £1+ inc. 1.49% fixed bonus for 12 months
Protection scheme
FSCS
ISA transfers in
Accepted
Rate includes a Plum bonus of 1.41% AER (variable) if kept for 12 consecutive months and other conditions are met. After 12 months, the rate will be 3.04% AER (variable). Interest on our Cash ISA varies. This is the rate from 30/10/25. ISA rules and T&Cs apply. Plum is not a bank
Tax treatment depends on your personal circumstances and is subject to change
No notice, penalty, or charge applies.
More Information
Rate Tiers
Gross rateGross rateAER rateAER rate
Excluding bonusIncluding bonusExcluding bonusIncluding bonus
£12.79%4.28%2.79%4.28%
Eligibility
Maximum AgeUnlimited
Minimum Age18 years
Permanent UK Resident

Aldermore 1 Year Fixed Rate Cash ISA

Term
1 year
Open with
£1,000
Interest rate
4.17% 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 rateGross rateAER rateAER rate
Excluding bonusIncluding bonusExcluding bonusIncluding bonus
£1,0004.17%4.17%4.17%4.17%
Eligibility
Maximum AgeUnlimited
Minimum Initial Deposit£1,000
Minimum Age18 years
Permanent UK Resident

Aldermore Reward ISA Single Access Account Issue 7

Term
Easy access
Open with
£100
Interest rate
4.15% AER variable
Protection scheme
FSCS
ISA transfers in
Accepted
If 2 or more withdrawals are made then the bonus reduces for the rest of the anniversary year and will reset on the anniversary of account opening.
More Information
Rate Tiers
Gross rateGross rateAER rateAER rate
Excluding bonusIncluding bonusExcluding bonusIncluding bonus
£1002.9%4.15%2.9%4.15%
Eligibility
Maximum AgeUnlimited
Minimum Initial Deposit£100
Minimum Age18 years
Permanent UK Resident

Aldermore 3 Year Fixed Rate Cash ISA

Term
3 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 rateGross rateAER rateAER rate
Excluding bonusIncluding bonusExcluding bonusIncluding bonus
£1,0004.13%4.13%4.13%4.13%
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
4.13% 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 rateGross rateAER rateAER rate
Excluding bonusIncluding bonusExcluding bonusIncluding bonus
£1,0004.13%4.13%4.13%4.13%
Eligibility
Maximum AgeUnlimited
Minimum Initial Deposit£1,000
Minimum Age18 years
Permanent UK Resident

Hargreaves Lansdown Active Savings Monument - Easy Access ISA

Term
Instant access
Open with
£1
Interest rate
4.06% AER variable
Protection scheme
FSCS
ISA transfers in
Not accepted
No notice, penalty, or charge applies.
More Information
Rate Tiers
Gross rateGross rateAER rateAER rate
Excluding bonusIncluding bonusExcluding bonusIncluding bonus
£13.99%3.99%4.06%4.06%
Eligibility
Maximum AgeUnlimited
Minimum Initial Deposit£1
Minimum Age18 years
Minimum Monthly Investment£1
Permanent UK Resident

Skipton Annual Allowance Cash ISA Issue 4

Term
Instant access
Open with
£1
Interest rate
4% AER variable
Protection scheme
FSCS
ISA transfers in
Not accepted
No notice, penalty, or charge applies.
More Information
Rate Tiers
Gross rateGross rateAER rateAER rate
Excluding bonusIncluding bonusExcluding bonusIncluding bonus
£14%4%4%4%
Eligibility
Maximum AgeUnlimited
Minimum Initial Deposit£1
Minimum Age18 years
Minimum Monthly Investment£1
Permanent UK Resident

Aldermore Reward ISA Double Access (Issue 5)

Term
Easy access
Open with
£100
Interest rate
4% AER variable
Protection scheme
FSCS
ISA transfers in
Accepted
If 3 or more withdrawals are made then the bonus reduces for the rest of the anniversary year and will reset on the anniversary of account opening.
More Information
Rate Tiers
Gross rateGross rateAER rateAER rate
Excluding bonusIncluding bonusExcluding bonusIncluding bonus
£1002.9%4%2.9%4%
Eligibility
Maximum AgeUnlimited
Minimum Initial Deposit£100
Minimum Age18 years
Permanent UK Resident

Paragon 5 Year Fixed Rate ISA

Term
5 years
Open with
£500
Interest rate
4% 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 rateGross rateAER rateAER rate
Excluding bonusIncluding bonusExcluding bonusIncluding bonus
£5004%4%4%4%
Eligibility
Maximum AgeUnlimited
Minimum Initial Deposit£500
Minimum Age18 years
Permanent UK Resident