Nationwide Savings Rates Increase After New One-Year ISA Deals Ahead of April

6 March at 9: 00 a. m. ET — Nationwide Building Society unveiled new one-year Single Access ISA and Single Access Saver accounts paying 4. 00% AER, a set of changes that represent a nationwide savings rates increase across its short-term products. The timing targets the run-up to the new tax year in April and intensified provider competition.

Nationwide Building Society’s one-year Single Access ISA and saver explained

The two new accounts — a 1 Year Single Access ISA and a 1 Year Single Access Saver — offer a headline rate of 4. 00% AER. Both are single-access products: customers may make only one withdrawal in 12 months before the rate falls to a variable 1. 05% AER for the remainder of the term. The interest on the Single Access Saver is taxable if it breaches personal allowances, and the rate is variable, meaning it can change during the year.

Nationwide Savings Rates Increase also lifts fixed-rate ISA lineup

Nationwide also increased rates on its fixed-rate Cash ISA range, moving several products higher from 6 March: the 1-, 2- and 3-year fixed-rate ISAs rose to 4. 05% while the five-year fixed-rate ISA now pays 4. 25%, up from a previous five-year offer of 4. 00%. The building society is withdrawing its existing 1 Year Triple Access ISA and 1 Year Triple Access Saver, both of which had been at 3. 30%.

and Nationwide executives put the timing in sharp relief

Caitlyn Eastell, a personal finance analyst at, noted that ISA season intensifies as the new tax year approaches in April and flagged a specific policy deadline: the 2026-27 tax year marks the final year for those under 65 to utilise their full £20, 000 cash ISA limit. Richard Stocker, head of savings at Nationwide, said the society is increasing rates across ISAs and instant access savings to deliver more long-term value for members.

Short-term savers who keep £10, 000 in a 1 Year Single Access ISA at 4. 00% would earn an extra £400 in interest over a year compared with no uplift, and someone placing £20, 000 would see £800 additional interest; those arithmetic examples reflect the 4. 00% headline rate on the new one-year accounts.

Still, the single-withdrawal restriction on the Single Access products is a material trade-off. Several market-leading easy-access deals currently allow unlimited withdrawals and pay around 4. 50%, making accessibility a key comparison point for savers weighing Nationwide’s offers.

At the end of the 12-month term for the Single Access ISA, balances are moved into an instant access cash ISA; Nationwide will inform members of the new rate before the cash transfer.

For fixed-rate savers, the five-year 4. 25% option now sits among the more competitive locked-in deals from major building societies and banks, while the 1-, 2- and 3-year 4. 05% rates offer shorter-term protection if markets push base rates lower over the medium term.

Market observers and savers can treat these adjustments as part of a broader seasonal pattern: providers typically refresh ISA ranges in the weeks before the new tax year to capture inflows and compete for allowances, and Nationwide’s moves on 6 March reflect that cadence.

More details on member transitions into instant access products at the end of these one-year terms are expected from Nationwide in direct communications to account holders.

The next confirmed milestone is the start of the new tax year in April (start of day at 12: 00 a. m. ET); if competing providers raise easy-access rates further before then, savers may reassess whether the restricted-access 4. 00% Single Access products or the fixed-rate ISAs better meet their needs.