Notice ISAs offer higher rates without locking away cash as banks unveil new deals
Aldermore’s 4.3% 60‑day notice Cash ISA and Paragon’s 4.15% 40‑day product give savers an alternative to fixed-term bonds while flexible terms let withdrawals be replaced within the tax year
Savers looking to balance higher returns with access to funds can consider notice Cash ISAs, which pay substantially more than many easy‑access accounts while allowing withdrawals with notice or, in some cases, immediate access for a fee.
Aldermore Bank this month launched a notice Cash ISA paying 4.3% that requires 60 days’ notice to withdraw. Paragon Bank currently offers a 4.15% notice Cash ISA with a 40‑day notice period. Both accounts are being marketed as flexible ISAs, meaning money withdrawn can be replaced in the same tax year without counting against the current annual cash ISA allowance of £20,000.
Under the accounts’ terms, account holders may also make immediate withdrawals but will incur a charge that effectively reduces the paid rate on the withdrawn amount. Aldermore applies a charge equal to 60 days’ interest on any money taken out without giving notice, which lowers the effective rate on withdrawn funds to about 3.6%. Paragon’s equivalent break clause reduces the return on early withdrawals to roughly 3.7%.
Notice ISAs sit between fixed‑term bonds, which typically lock money away for a year or longer, and plain easy‑access ISAs that allow unrestricted withdrawals but usually offer lower rates. Many easy‑access accounts currently yield under 4%, making notice products an option for savers who are reluctant to commit to a fixed term but want a better return than standard instant‑access rates.
Lenders and savings providers also continue to offer alternative products that limit the number of withdrawals rather than imposing a notice period. Vida Savings’ Defined Access ISA 3 pays 4.11% and permits four withdrawals a year. Aldermore’s Double Access Issue 3 account pays 4.2% and allows two withdrawals, while Coventry Building Society’s 5 Access ISA pays 4.15% and permits five withdrawals annually.
Providers vary in how flexibility is applied and which charges, if any, apply to early access. The flexibility feature in an ISA allows replaced funds to be returned within the same tax year without using any of that year’s subscription allowance, but the account must be designated as flexible. Savers should consult each provider’s terms and conditions to confirm whether an account qualifies as a flexible ISA and to understand any fees tied to early withdrawal.
These products have emerged as banks and building societies compete for deposits amid a higher‑for‑longer interest‑rate environment. For savers, notice ISAs and limited‑withdrawal easy‑access ISAs offer options that bridge the gap between accessibility and yield, but the effective return depends on whether holders need to access money before the notice period ends or exceed permitted withdrawals.
The details reported here were compiled from provider announcements and a review of current Cash ISA offers. The published figures reflect rates and terms available as of an update on Sept. 10, 2025. Consumers considering a switch or new deposit should verify rates and conditions with providers before moving funds.