The social researcher, 43, and her husband Paul, 42, dwell with their youngsters Ines, six, and Louis, eight, in Faversham, Kent.
They at the moment pay £1,718 a month for a 28-year mortgage on a four-bedroom new-build purchased for £485,000 in 2020.
Her three-year 2.08 per cent mounted deal will expire subsequent yr – and, with cheaper offers already vanishing from the mortgage market, the Josephs know they’re going through larger month-to-month funds.
Mrs Joseph mentioned: “I can’t sleep at evening for worrying about how I’ll pay the mortgage.
“The repayments are prone to rise to greater than half my take-home pay – or much more if rates of interest undergo the roof.
“I might depart my present deal and lock into a brand new seven-year one now that I can afford, however my present lenders are demanding £12,000 for me to modify.