ISA type
Check whether the Cash ISA is easy access, limited access, fixed rate, flexible or junior.
Cash ISAs let eligible savers earn tax-free interest within ISA rules, but the right product depends on access, fixed terms, transfer rules, minimum deposits, withdrawal penalties and whether the rate is variable or fixed.
Quick answer
Atom, Kroo, TSB, Metro Bank, Virgin Money, Co-operative Bank, First Direct, Barclays, Lloyds, HSBC, Nationwide and other reviewed banks are relevant Cash ISA comparison points. Do not compare Cash ISAs by headline AER alone; check access rules, transfer rules and penalties too.
Before looking at individual banks, check the features, fees and limitations that matter most for this type of account.
Check whether the Cash ISA is easy access, limited access, fixed rate, flexible or junior.
Compare AER, tax-free wording, minimum deposits, balances and current tax-year allowance rules.
Check transfer-in rules, withdrawal limits, early closure penalties and flexible ISA replacement rules.
Confirm FSCS protection and the authorised firm that holds the Cash ISA deposit.
Review each bank's strengths, limitations and key checks for this guide. The order does not imply an overall ranking.
App-based Cash ISA savings
Atom is relevant for app-based savings and Cash ISA routes in the project data.
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Check whether the product is easy access or fixed, and confirm transfer and withdrawal rules.
High street ISA range
Barclays is worth comparing for instant-access and reward-linked ISA-style savings routes.
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Check account eligibility, rate type and access restrictions.
Fixed and access Cash ISA routes
Co-operative Bank is relevant for fixed-rate Cash ISAs and access ISA products listed in the project data.
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Fixed ISA withdrawals can carry interest penalties and minimum deposits may apply.
Fixed and instant-access Cash ISA options
First Direct is worth comparing for fixed-rate Cash ISA and instant-access Cash ISA routes.
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Check minimum deposits, ISA allowance rules and early withdrawal charges.
High street Cash ISA access
Halifax is useful to compare if you want a familiar high street brand with ISA and savings options.
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Rates and terms vary by issue, access type and tax year.
Cash ISAs alongside wider banking
HSBC is worth comparing if you want ISA savings from a large high street bank.
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Check transfer rules, access and eligibility for the exact ISA product.
Flexible Cash ISA route
Kroo is relevant because the project data includes a Flexible Cash ISA alongside its current account.
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Confirm current AER, flexibility rules and whether withdrawals can be replaced in the same tax year.
Cash ISA alongside linked banking
Lloyds is worth comparing for ISA options linked to a broad current account and savings relationship.
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Check whether better rates depend on account type or product issue.
Instant access and fixed-rate Cash ISAs
Metro Bank is relevant for instant-access Cash ISA and fixed-rate Cash ISA options in the project data.
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Fixed-rate Cash ISAs may not allow partial withdrawals and early closure can lose interest.
Building society Cash ISA routes
Nationwide is worth comparing if you value a member-owned provider with ISA and savings options.
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Check product windows, member eligibility and whether the ISA is flexible.
Cash ISA, limited-access ISA and Junior ISA routes
TSB is relevant for Cash ISA Saver, limited-access ISA, fixed-rate Cash ISA and Junior Cash ISA routes in the project data.
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Rates can depend on withdrawal behaviour, fixed terms and age restrictions for Junior ISAs.
Online Cash ISA and fixed ISA range
Virgin Money is worth comparing for online Cash ISA, limited-access ISA and fixed-rate Cash ISA routes.
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Issue dates, access limits and fixed-end dates matter, so check the live product page.
FAQs
Quick answers before you compare banks.
Atom, Kroo, TSB, Metro Bank, Virgin Money, Co-operative Bank, First Direct, Barclays, Lloyds, HSBC, Nationwide and other reviewed banks are relevant Cash ISA comparison points. Do not compare Cash ISAs by headline AER alone; check access rules, transfer rules and penalties too.
Compare UK banksCheck whether the Cash ISA is easy access, limited access, fixed rate, flexible or junior. Check AER, tax-free status, minimum deposits, maximum balances and the current tax-year ISA allowance. Check transfer-in rules before moving an existing ISA.
Continue researching →We compare banks using provider information, review criteria and practical checks such as fees, features, protection, eligibility and limitations.
Read how we review banks →Yes. The cards are intended to help readers compare strengths, limitations and key checks. The order does not imply an overall ranking.
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Use the full comparison table to compare fees, protection, savings, travel and everyday features.