The poll, conducted by ICM, found that people aged 18 to 24 intended to make an average pledge of £31.29 to charity over the festive season, higher than for any other age group.
People aged between 55 and 64 came out next on the list, with an average expected donation of £29.82.
The research also found that 42 per cent of young people daid they would give up their smartphones for December in order to raise £500 for the charities of their choice, compared with less than a third of the rest of the population.
And the survey found young people to be the most careful givers, with more than half saying that that they looked into a charity before donating to it. Only 29 per cent of over-75s said the same, according to the research, which was conducted last month using a weighted sample of 2,000 people.
The two regulators have published the research to highlight the importance that people verify the charities they are giving to are bona fide, for example by checking if an organisation is registered with the Charity Commission.
Helen Stephenson, chief executive of the Charity Commission, said: "This research shows that Christmas remains a time of generous charitable giving, and that is to be celebrated. I'm particularly pleased that young people give generously, but also that they are more likely to make basic checks before giving to their chosen charity than people from their parents' generation."
Stephen Dunmore, chief executive of the Fundraising Regulator, said the polling showed "a surprisingly high number of people who give without checking where their donation is going".
He said: "It’s important for donors to remember that they are entitled to know what their donations are being used for and to consent (or not) to the ways in which their personal data will be used."
The most popular way to support charity this year, according to the poll, is to buy charity Christmas cards.