By Chandraketu Tripathi · Updated April 2026 · Fact-checked ISA · April 2026The cash ISA market is more newsworthy than ever in 2026, with major rule changes coming, rates still competitive, and the new tax year bringing a fresh £20,000 allowance. Here is a complete roundup of everything happening in the cash ISA market right now.
The New Tax Year — Fresh £20,000 AllowanceThe 2026/27 tax year started on 6 April 2026, resetting every UK resident's ISA allowance to £20,000. This is the last full tax year in which under-65s can contribute the full £20,000 to a cash ISA — from April 2027, the limit drops to £12,000 for most savers. Making the most of this year's full allowance is a priority for anyone who can afford to. Best Cash ISA Rates — April 2026The best easy access cash ISA rates in April 2026 are: Chip (4.84% AER), Plum (4.51% AER), Trading 212 new customers (4.58% AER including 12-month bonus), and Marcus by Goldman Sachs (4.50% AER). These rates significantly outperform high street banks — Lloyds instant ISA pays around 0.75% AER, and Barclays around 1.66% AER. Multiple ISA Rule — Spreading Across ProvidersSince April 2024, you can contribute to multiple ISAs of the same type with different providers in the same tax year. This means you can split your £20,000 between an easy access ISA (for liquidity) and a fixed rate ISA (for a better guaranteed return) — both fully tax-free. Before April 2024, you could only contribute to one cash ISA per year. 💡 The most urgent action this tax year: open or top up your cash ISA before 5 April 2027. If you can contribute the full £20,000, do so before the allowance drops to £12,000 for under-65s. Existing ISA balances are not affected by the new limit — only new annual contributions from April 2027 onwards. Cash ISA vs Savings Account — Which Is Better?With savings rates still above 4% and the Personal Savings Allowance covering the first £1,000 of interest for basic rate taxpayers, the tax advantage of a cash ISA is most valuable for: higher rate and additional rate taxpayers; anyone with large savings balances above £22,000 (where the basic rate PSA is exceeded at 4.5% AER); and anyone planning for future years when rates may fall and accumulated ISA balances provide permanent tax shelter. ⭐ OUR VERDICT The cash ISA market in April 2026 remains highly competitive and the rule changes from April 2027 make this tax year especially important. Prioritise using your full £20,000 allowance, choose the best available rate (currently 4.84% AER from Chip for easy access), and consider splitting between easy access and fixed rate ISAs now that multiple ISA contributions are permitted. The coming reduction to £12,000 makes building your ISA pot now — while the full allowance is available — a smart long-term strategy. Frequently Asked QuestionsWhat is the cash ISA limit in 2026? The cash ISA limit in 2026/27 is £20,000 per person — shared across all ISA types combined. This is the last full tax year at the £20,000 limit for under-65s. From April 2027, the cash ISA allowance for under-65s drops to £12,000. What is the best cash ISA rate in April 2026? The best easy access cash ISA rate in April 2026 is 4.84% AER from Chip. Trading 212 offers 4.58% AER for new customers (including a 12-month bonus). The best fixed rate cash ISAs pay around 4.60-4.70% AER for 1-year terms from providers including SmartSave and Aldermore. Can I have more than one cash ISA in 2026? Yes. Since April 2024, you can contribute to multiple cash ISAs with different providers in the same tax year. Your total contributions across all ISAs cannot exceed £20,000 in 2026/27. This allows you to split between an easy access ISA and a fixed rate ISA simultaneously. Is my cash ISA money safe? Yes. Cash ISA deposits held with UK-authorised banks and building societies are protected by the FSCS up to £85,000 per person per banking licence. Some providers like Trading 212 have £120,000 FSCS protection. Always check the FSCS status of any provider before depositing. |
Live Tool
Checking when a stock exchange is open? Use our free Global Stock Market Hours tool — live open/closed status, countdown timers, and public holiday alerts for 47 exchanges worldwide. No signup required.
Part of our complete guide:
UK Inheritance Tax 2026 - Complete Guide →
Find a regulated IFA → | Make a will online from £29.99
