One of the most important issues that should be considered in the study of household economy is their saving power. Household saving power can be estimated by measuring the difference between their income and expenditures but usually under reporting in declaring income is prevented providing of reasonable estimates. In this article, attempt is made that by fitting of the regression model, the household under reporting error be adjusted and then their saving power be estimated for the years 2009 to 2011. Results show that during these years, the average of household saving power of the country has increased from 4 percent to 10 percent.