The mortgages, which are exclusive to those employed by the NHS, have the benefit of an increased loan-to-income ratio of five times a customer’s income – up on the usual four-and-a-half times.

The Thank You mortgage deals come as two or five-year fixed rates and include an 85% loan-to-value (LTV) product with a 3.08% interest rate.

NHS workers who already hold a mortgage with Principality in England and Wales are also eligible to switch to the new Thank You retention range.

Meanwhile, the Thank You savings product, also exclusive to NHS staff in Wales, has a variable interest rate of 1.65% gross/AER and allows savers to put away up to £250 per month and withdraw money three times a year.

Julie-Ann Haines, chief executive officer at Principality Building Society said: “As a member-owned organisation, Principality’s ethos is to support the communities we live and operate in.

“This year we have all been made ever more so aware of the crucial role NHS workers play in our communities. The Thank You savings and mortgage products have been designed to acknowledge the key role played by NHS workers and to thank them for their ongoing support.

“Next year, we will also be launching products to thank other key workers supporting our communities. Diolch yn fawr.”