Tax-exempt organizations are required to file annual reports with the IRS. Those with gross receipts below a certain threshold amount can file an E-postcard rather than a longer version of Form 990. The IRS has just raised that threshold amount to $50,000, an increase over the previous filing threshold of $25,000. The deadline for nonprofit filings is the 15th day of the fifth month after their year-end. For calendar-year organizations, that filing deadline for 2010 reports is May 16, 2011.