If your deductions for the year are more than your income for the year, you may have a net operating loss (NOL). Publication 536 covers NOLs for individuals, estates and trusts: How to figure an NOL. When to use an NOL. How to claim an NOL deduction. How to figure an NOL carryover. Current Revision Publication 536 PDF (HTML | eBook EPUB) Recent Developments Update to 2021 Pub. 536 for certain post-2020 NOL deductions -- 29-DEC-2022 Frequently asked questions about carrybacks of NOLs for taxpayers who have had Section 965 inclusions Other Items You May Find Useful All Revisions for Publication 536 About Publication 225, Farmer's Tax Guide About Publication 334, Tax Guide for Small Business (For Individuals Who Use Schedule C or C-EZ) About Publication 535, Business Expenses About Publication 542, Corporations About Publication 908, Bankruptcy Tax Guide Other Current Products Related About Form 1040, U.S. Individual Income Tax Return About Form 1040-NR, U.S. Nonresident Alien Income Tax Return About Form 1041, U.S. Income Tax Return for Estates and Trusts About Form 1041, U.S. Income Tax Return for Estates and Trusts About Form 1045, Application for Tentative Refund