Mortgage Solutions – ISA Changes Could Revive Offset Mortgages

Proposed reforms to cash ISAs could have unexpected consequences for the mortgage market, according to Luther Yeates, Head of Mortgages at Orton Financial.

Speaking to Mortgage Solutions, Yeates warned that if the government restricts cash ISA benefits, savers will “likely start looking for more tax-efficient ways to use their cash savings”. For many, the answer could be a return to offset mortgages, a product that reduces the interest you pay by offsetting savings against your mortgage balance.

“Offset mortgages were more common in the past, but only a narrow range of lenders offer them today. However, these products could become far more attractive again if the ISA changes go ahead. This could completely reshape the mortgage market,” Yeates said.

Currently, only four lenders offer residential offset mortgages and two offer them for buy-to-let, but Yeates believes demand could bring them back into the mainstream.

He highlighted the tax advantages for high earners: “Unlike earning interest in an ISA, where returns are tax-free up to your allowance, offsetting savings against a mortgage reduces your interest payments rather than earning interest. This benefit isn’t taxed, so it effectively gives people a tax-efficient return on their savings without taking on investment risk.

With reports that Chancellor Rachel Reeves may lower the cash ISA limit below £20,000, Yeates says lenders will need to consider reviving competitive offset products to meet new demand.