Additional income beyond your main job—whether from side gigs, rental properties, investments, or selling items—changes how you file taxes. The IRS treats different income sources differently, and each one has its own reporting requirements. Understanding which forms you need and how to report each type of income helps you file accurately and avoid missing deductions you're may have access to to.
These articles explain how to report income that doesn't come from a W-2 paycheck, what records you need to keep, and which tax forms match your situation. You'll learn when self-employment tax applies, how to handle rental income, what to do with investment earnings, and how to report other money you've received.