How do I change my ein

Assuming you are referring to your EIN for your Schedule C (Self-Employment), please follow these steps to get back to that section in TurboTax Online: 
 

1. Sign in to TurboTax and open or continue your return
2. Under the Wages and Income section, scroll down and click on Self-Employment Schedule C: 1099-NEC, 1099-K, expenses
3. Click Add/Edit and walk through the interview questions
4. Click the edit pencil next to your line of work
5. Scroll down to Business Summary and click the edit pencil next to Your [type of business] Info
6. Click Edit under Employer ID Number (EIN)
7. Change your EIN and click Continue