An investment platform has launched two new “market-leading” Cash ISA deals offering savers tax-free returns of up to 4.26%. Hargreaves Lansdown has introduced the fixed-term deposit accounts through its Active Savings platform in partnership with Chetwood Bank, giving customers access to what it describes as inflation-beating rates.

The two products include a five-year fixed-term Cash ISA paying 4.26%, the highest fixed-term return currently available on the platform, and an 18-month fixed-term deposit paying 4.02%. Mark Hicks, director of Active Savings at Hargreaves Lansdown, said the new accounts were designed to help savers protect their money from inflation while benefiting from tax-free growth. He said: “The launch of these two market-leading, inflation-beating, fixed-term products, which are exclusive to HL is great news for Active Savings clients.”

The launch follows the firm’s recently introduced easy-access Cash ISA offering a 4.30% rate, which has proved popular with savers looking to benefit from competitive returns while keeping their money within the tax-free ISA wrapper.

Cash ISAs allow savers to earn interest without paying income tax, with individuals able to deposit up to £20,000 each tax year across ISA products.

Demand for these types of accounts remains strong. Latest figures show households deposited an additional £5.2 billion into ISAs in January 2026, highlighting continued interest in tax-efficient savings products.

Mr Hicks added that demand for Cash ISAs has remained high as savers look to maximise their annual allowances.

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He added: “Cash ISAs have continued their strong run, with £5.2bn paid in during January. This could be due to people looking to make the most of their £20,000 annual allowances this year and next, before the limit is slashed to £12,000 for people aged less than 65 from April 2027.”

He also highlighted the benefit of locking money away at a fixed rate.

Mr Hicks said: “By securing these highly competitive fixed rates, savers can help protect their capital from the erosive effects of inflation, while also benefiting from tax-free interest, which is an increasingly valuable advantage in today’s environment.”

He added that guaranteed returns can provide savers with greater financial certainty.

“With guaranteed returns over a defined period, customers gain greater predictability, making it easier to plan for important financial milestones,” he said.