Companies are required to maintain a capital reserve for uncertain tax positions they think might eventually be overturned by the IRS. But they do not have to share this information with the agency.
The IRS wants companies to disclose their more susceptible tax positions to expedite the auditing process.
"Right now, we spend a lot of time with corporate taxpayers just trying to find those issues -- which we find eventually," Shulman said. "I think it's a waste of time for corporate taxpayers and a waste of time for the IRS. We're trying to streamline the process... so we can resolve issues quicker."