Please take the following steps to add your self-employment cash income.
1) Sign into TurboTax Online
2) Continue your return by click Taxes > Tax Timeline > Take me to my return.
3) Click on the Federal Taxes tab (Personal depending on version)
4) Click on Wages & Income sub-tab (Personal Income depending on version)
5) Click Jump to full list or Show all income (if needed)
6) Scroll down to Self-Employment click on Show more.
7) Click Start/Revisit next to Income and Expenses.
😎 When you come to the 'Lets get income for XXXX' page click on Additional Income.
9) Follow the prompts to enter your cash income.
Please see the following FAQ article for additional information. https://ttlc.intuit.com/replies/4801198