Parents have traditionally left their children their wealth when they die - but now they can pass on their mortgages as well.
That's thanks to a new type of home loan that allows parents to leave both their homes and the responsibility of paying for it to their offspring while reducing exposure to inheritance tax.
It was introduced yesterday by the Kent Reliance Building Society based in Chatham and the country's 21st largest mutual.
The Kent said that under the terms of the new product, a homeowner could take out an interest-only mortgage and pass the repayments and house on to the next generation when they die.
The loan can also be passed down through the generations from parents to children to grandchildren as long as each beneficiary can meet the interest repayments.
The move could slash the amount paid in inheritance tax, as the building society would still own a large slice of the home.
But it would also mean that the beneficiary is left with a large mortgage, because the homeowner only ever paid off interest on the loan rather than the loan itself.
Kent Reliance chief executive Mike Lazenby said the "inter-generational mortgage" was one of many options open to customers with interest-only loans.
"We wrote to all our customers who have interest-only mortgages to remind them they have to decide what they want to do," he said.
"The inter-generational mortgage is one of the options. They can keep it on interest only and when they die they pass on the property and the mortgage to their kids."
Most mortgages have a 25- year lifespan but the inter-generational mortgage allows borrowers to extend it so long as interest repayments can be met.
Kent Reliance believes the scheme could help cut the amount paid in inheritance tax, which kicks in at £285,000 and is affecting more people because of soaring house prices.
Mr Lazenby said that under the inter-generational mortgage a child inheriting a £400,000 home and a £150,000 mortgage would not pay inheritance tax because the value of the estate passed on was only £250,000, and below the inheritance tax threshold.
If the full value of the house was passed on, there would be a tax bill of £46,000 - or 40 per cent of the value of the house over £285,000.
Mr Lazenby added that if the beneficiary could not meet the interest repayments on the mortgage - or did not want to take on the house - the outstanding mortgage could be repaid by selling the property.
The Council of Mortgage Lenders said the mortgage gave homeowners more choice, but warned that children inheriting a mortgage needed to be aware of its financial implications.
"We have not seen this sort of mortgage in the UK before," said CML spokesman Christopher Dean.
"These types of products are quite popular in Switzerland, Japan and Ireland.
"It gives consumers more choice. It might be an advantage to people on a low wage entering home ownership, where their mortgage may take longer to pay off.
"It means parents can pay off some of the mortgage and leave some to the children."