"The survey shows part-time workers are less likely to receive a salary increase than full-time workers. This is an issue that mainly affects women, due to the higher number of women working part-time."
Other survey findings include 85 per cent of respondents worked more than 37.5 hours per week, and 96 per cent of me work full time and women 80 per cent.
Around 78 per cent of women said they worked part time for caregiving purposes compared with 11 per cent of men.
The main reason for men working part time was due to them not needing to work full time and "to pursue other hobbies and interests".
Twenty five per cent of respondents who were at the time employed full time said they received no pay rise in the last 12 months and 38 per cent of respondents who worked part time received no pay rise in the last 12 months.
Men were found to be more likely to receive a higher salary rise than women, with 31 per cent of women and 25 per cent of men receiving an increase of one per cent to 3 per cent in the last 12 months, and 50 per cent of men and 44 per cent of women receiving a rise of 4 per cent or more.
Women make up one-third of the partners and directors in New Zealand law firms.