Can you sue the IRS? The answer is a resounding yes! Our client did not file tax returns for 2008 or 2009. Before we could file the tax returns, the IRS issues Notices of Deficiency for those years proposing over $150,000.00 in liability, plus penalties and interest. Our attorney Raymond Gaynor filed a Petition in the United States Tax Court today on behalf of our client suing the IRS. We expect a significant reduction in the tax liability as a result of our efforts. Do you have unfiled tax returns.? Have you received an IRS Notice of Deficiency? Call us, we can help.