"While it’s true that the IRS has experienced budget reductions over the past several years, those cuts hardly explain a failure of an 18-month-old piece of computer hardware. More important, those claims conveniently ignore that the IRS has spent untold billions since the late 1960s on numerous attempts to modernize its IT systems, all centered on trying to replace the ancient IMF system, with minimum success."

I assume you didn't read the whole source