Thirty-two per cent of participants in the survey, carried out by Ipsos Mori, said they had given time to charity in past year - up from 23 per cent in 2005.
The survey also found that 36 per cent claimed to be actively involved in a charity either as an employee, a volunteer or a trustee. This compares with 28 per cent three years ago.
Public trust in charities is also on the rise, according to the research. Respondents were asked to rate their trust in a number of institutions on a scale of one to 10. Charities scored an average of 6.6, an increase on 6.3 in 2005.
The report said confidence in the sector was based on people's "inherent belief" in it: "This inherent belief can work both in the sector's favour and against it. Care must be taken when considering options to address negative inherent beliefs in charities, as there is a risk of adversely affecting positive inherent beliefs."
Dame Suzi Leather, chair of the Charity Commission, said: "More people giving time and goods is very good news. We must listen to what the public tells us and, most importantly, what makes people more or less likely to trust charities."