a month other than December) is used, by the 15th day of the third month immediately following the last day of the fiscal year. The corporation must complete a Schedule K-1 for each person who was a shareholder at any time during the tax year and file it with the IRS along with Form 1120S. The second copy of the Schedule K-1 must be mailed to the shareholder. FICA As is the case for any other corporation, the FICA tax is imposed only with respect to employee wages and not on distributive shares of shareholders. Although FICA tax is not owed on distributive shares, the IRS and equivalent state revenue agencies may recategorize distributions paid to shareholder-employees as wages if shareholder-employees are not paid a reasonable wage for the services they perform in their positions within the company. Reporting compliance In 2005, the IRS launched a study to assess the reporting compliance of S corporations The study began in late 2005 and examined 5,000 randomly selected S corporation returns from tax years 2003 and 2004. The IRS intends to use the results to measure compliance in recording of income, deductions and credits from S corporations, and to formulate future audit criteria to better target likely non-compliant returns. This is part of a larger IRS effort to improve tax compliance and reduce the estimated $300 billion gap in gross reported figures each year. A large portion of that gap is thought to come from small businesses (and particularly S corporations, which are now the most common corporate entity, numbering over four million in 2011, up from three million in 2002 and about 750,000 in 1985). State tax States impose tax laws and regulations for corporate income and distributions, some of which may be directed specifically at S Corporations. Some but not all states recognize a state tax law equivalent to an S corporation, so that the S corporation in certain states may be treated the same way for state income tax purposes as it is treated for Federal purposes. A state taxing authority may require that a copy of the Form 1120S return be submitted to the state with the state income tax return. Some states such as New York and New Jersey require a separate state-level S election in order for the corporation to be treated, for state tax purposes, as an S corporation. California S corporations pay a franchise