Doug Shulman wants you to put that notion right out of your mind:
Doug Shulman, the IRS commissioner, said that people who file electronically during a shutdown would likely not face any delays in having their returns – and potential refunds – processed. But taxpayers who file by paper, Shulman added, may see some delays. “We’ve got a 100,000 employees. Not all of them are going to be coming to work. But we’re going to have a complement here,” Shulman said. “The nuances of who is going to be doing what I’m not ready to get into. The most important thing for people to know is: We’re going to be accepting tax returns and people should file.”
So as Adrienne just mentioned, you can either ask the AICPA for help, call your tax advisor or simply curl up into a ball and shudder in the corner until the 18th passes.