How do I add a small commission to my income from an old job that I quit several years ago?

[KittyM]

You can report this amount as Other Income.  To do this in TurboTax, 

• In your Federal return, choose the tab for Wages & Income
• Scroll down to Less Common Income (you may have to click Add more income and See more income to view this topic) and Show more
• Start/Revisit Miscellaneous Income and choose Other reportable income 
• Say Yes to continue to the screen Other Taxable Income. Enter your item description and the amount.