The May survey of 1,047 people showed a net 10 percent of respondents were better off than a year ago, down from 13 percent in last month's survey. Looking out a year, a net 36 percent felt they would be better off, down from 40 percent the previous month.
Perceptions of the broader economy fell for the fifth consecutive month, with a net 27 percent seeing better economic conditions ahead in the next 12 months down from 33 percent in April.
The biggest drop off in confidence was in those deeming it a good time to make a major household purchase, falling to a net 36 percent from last month's 47 percent.
Those thinking house prices would rise in the next two years remained static at 72 percent, predicting annual increases of 3.8 percent to 3.9 percent. Some 71 percent of respondents expect prices in general rise over the next two years at an annual pace of 3.1 percent, slower than the 3.2 percent pace seen in April.