Co-operative Insurance Society is advising their 80,000 customers with unit trust PEPs to switch to one of their ISAs so that they can continue to save tax-free after next April.
The CIS ISA consists of a maxi and three mini accounts. Investors will be able to choose from a deposit account at The Co-operative Bank, three CIS unit trusts and a with-profits bond.
CIS marketing general manager Martin Clarke says: "Customers need to take positive action or their regular savings will cease.
"Many have already confirmed that they will roll their contributions into a new CIS unit trust ISA, which they are able to do at no extra cost."