They did just get a big boost, but this was after years of stagnant funding, as the link in the comment you replied to shows. Comparing government agencies' ef

They did just get a big boost, but this was after years of stagnant funding, as the link in the comment you replied to shows. Comparing government agencies' efficiency to private entities' is tricky since they tend to have different goals and constraints, but I'm not sure 87,000 agents is that many considering the number of households and business that have to pay taxes, and the number of non-profits that don't pay taxes but still file financial information.