When one senator asked how the agency could still be using such old systems when it spends over $2 billion a year on information technology operations, [IRS Commissioner John] Koskinen explained that the money has been going into upgrading its systems, which were customized for the IRS in the 1950s and 1960s. "
It's like driving a Model T that now has a great GPS system and wonderful sound system, [and] has a rebuilt engine," he said.
IRS says it's using technology from JFK's time [CNN Money]

The head of the IRS said Thursday that a government shutdown during tax season would be a challenge the agency has never confronted before — and one that would become more complicated as the April filing deadline draws closer. Doug Shulman, the IRS commissioner, also signaled at a House Ways and Means subcommittee hearing that his agency was discussing how to address a potential shutdown with the Obama administration, though he did not spell out any details of those talks. “We run a $13 billion financial services operation, so the idea of stopping it for a few days or a few weeks is strange,” Shulman said, adding that he was hopeful, based on ongoing negotiations, that a shutdown could be averted. [