Wesleyan Financial Services is planning to offer a "no fuss" ISA to compensate for the complexity of the Government's plans.
It will offer a maxi ISA consisting of an equity element via the Wesleyan Growth Trust with a cash unit trust for the cash component.
The equity-only mini ISA will offer the Wesleyan Growth Trust alone while the mini cash ISA will consist of a cash account through Wesleyan Savings Bank.
The minimum monthly premium into the Growth Trust will be £200 with a minimum single premium of £2,400. It will not offer a life element.
Wesleyan deputy managing director Mike Sinclair says: "ISAs have ended up being quite complex which is why we have made our range as simple as possible. But we strongly believe that customers should take professional advice before investing."