Typical pensioner incomes now outstrip those of working-age people, a report from the Resolution Foundation says.
Pensioners are also now more likely than their predecessors to still be in work, own a home and have access to generous private pensions, it adds.
The think tank says growth in pensioner incomes has been coupled with weak income growth for working-age people.
Pensioner households are now £20 a week better off than working age households, but were £70 a week worse off in 2001.
However, the report, called As Time Goes By, adds: “This strong growth is not the result of a boom time for all pensioners, with most finding that their personal situation changes little from year-to-year. ”
It says while typical incomes across the pensioner population have grown by more than 30% since 2001, the typical income of someone who turned 65 in that year was only 7% higher by 2014.