The micro-census special programme "Environmental conditions and environmental behaviour" by Statistics Austria contains widespread data material concerning ecological issues. The influence of income on the collected environmental characteristics is commonly assumed but could commonly not be confirmed because the variable “income” is not part of the micro-census survey. In 2018 a study with data of the micro census environment 2015 was conducted. Most of the income information was generated by linking with administrative data, which increased data validity. For data missing in administrative sources, statistical matching with income components of EU-SILC was conducted. A mixed use of both methods (administrative and matching) seemed to be the most useful way to generate a variable as the total household income for an existing data set. This way the advantages of both data generating possibilities can add up and improve the data quality.