How do you enter the information needed for self-employment income and expenses? It shows last years income but is not letting me add 2020 income.

If the self-employment income is the same type of work as last year, you would Edit it. If this is a new line of work, you would Add it.

• Continue through the interview and eventually you'll be asked to enter your income and expenses.

If you're still having problems, see the following instructions: Where do I enter Schedule C?