As her surviving spouse, I can inherit her tax-free Isa allowance equal to the value of her Isa when she died. The Isa was set up earlier this year and I filled in some paperwork so that Fidelity could apply my wife’s allowance to my Isa. I am also concerned that HM Revenue & Customs will think I am making multiple applications for the same inherited Isa. Advertisement• Halifax has lost my £15,000 and I am sick with worryI feel like the staff do not understand the rules around the inherited Isa allowance. • The obscure rule that lets you bust the Isa allowanceThis inherited allowance can be used on top of your personal Isa annual allowance of £20,000.

Source: The Times August 31, 2025 19:24 UTC