Sainsbury’s Bank is to stop selling mortgages immediately.
As part of its five-year plan for financial services, it will also end all group capital injections after £35m in 2019/20.
Sainsbury’s started offering mortgages in 2017.
In May, fellow supermarket group Tesco called a halt to its mortgage lending.
Andrew Montlake, managing director of mortgage broker, Coreco, said: “The level of competition in the market is causing a major rethink among lenders for whom mortgages are a bolt-on rather than their core business.
“Just as with Tesco, for Sainsbury’s the margins are no longer there and its mortgage division was almost certainly struggling to wash its own face.
“Lower home purchase levels are rubbing salt in the wound of the exceptionally low rate environment.
“Lenders are experiencing a double whammy of low rates, hammering margins, and relatively low transaction levels, hitting volumes.
“For peripheral mortgage players it’s a bridge too far, all the more so with the potential impact of Brexit yet to be felt.
“We don’t expect this to be the last withdrawal from the mortgage market. It’s pretty brutal out there right now and more departures are likely.”