Nonprofits, just like for-profit companies, need to file tax filings with the IRS each year. Depending on your organization’s size and type, different form are required. Foundations must file the IRS 990-PF. Small public nonprofits with gross receipts $50,000 or less must file an IRS 990-N (e-Postcard). Organization’s with gross receipts between $50,001-$200,000 and under $500,000 in assets can file either an IRS Form 990 or IRS Form 990-EZ. With organizations with gross receipts over $200,000 must file IRS Form 990. Regardless of the size of the nonprofit organization, if the organization grosses $1,000 or more in unrelated business income, it also must file IRS Form 990-T.