The real issue is that the tax industry is a large employer. There are about 80k full time tax preparers in the US, and several times that are hired seasonally. H&R block alone hires about 80k for Jan->April. The lobbyists only have to go into senator's offices and say "We created 14,000 jobs in your district, and this bill puts those in jeopardy". Our tax payment system is, in part, a taxpayer funded private jobs creation program.