With the end of the tax year fast approaching, Halifax has issued a reminder to customers that they have only days left to make use of their current Individual Savings Account (ISA) allowance. The deadline, set at 11.59pm on April 5, 2026, marks the point at which unused allowances will be lost.
The bank’s message comes at a time of notable policy change, as reforms announced by Chancellor Rachel Reeves are set to alter how much can be placed into cash ISAs from April 2027. Alongside the warning, Halifax has also introduced a cashback incentive of up to £1,200 for customers transferring existing ISAs.
Tax year deadline highlights narrowing window for cash ISA contributions
Halifax’s alert focuses on the annual ISA allowance, which currently allows individuals to deposit up to £20,000 across one or more ISA accounts within a single tax year. According to the bank, any portion of this allowance that remains unused by the April 5 deadline will not roll over, making the final days of the tax year particularly significant for savers.
This year’s deadline carries additional weight due to confirmed changes to ISA rules. As reported in the announcement referenced by Halifax, from April 2027 the amount that can be allocated specifically to a cash ISA will be reduced to £12,000 for individuals under the age of 65. The overall ISA allowance will remain at £20,000, though the remaining £8,000 will need to be directed into other products such as stocks and shares ISAs.
According to Halifax, this effectively leaves savers with only two remaining opportunities to place the full £20,000 into a cash ISA under current rules, before April 5, 2026, and again before April 5, 2027. The bank states that customers should consider moving savings into tax-free accounts to “keep more of your money for yourself,” while also suggesting that combining cash and investment ISAs may support longer-term financial goals.
Cashback offer aims to attract ISA transfers before May deadline
Alongside its warning, Halifax has introduced a promotional offer designed to encourage customers to transfer their ISAs. According to the bank, individuals who move an existing ISA from another provider by May 31, 2026, could receive up to £1,200 in cashback.
To qualify, customers must either open a new cash ISA with Halifax or transfer funds into an existing one. The transfer must originate from a provider outside of Lloyds Banking Group, which includes Halifax itself, Lloyds Bank, Bank of Scotland and Scottish Widows.
The bank has specified that eligible customers must also hold a Halifax current account, as any cashback earned will be paid directly into that account. According to Halifax, payments are expected to be completed by September 30, 2026.
The timing of the offer appears closely aligned with the tax year deadline, creating a short window in which customers can both maximise their current ISA allowance and take advantage of the incentive. While the bank highlights potential benefits, the structure of the offer and eligibility conditions indicate that customers will need to act promptly and meet specific criteria to qualify.
