Why did I not see a self-employment tax deduction in 2021 like I had in 2020? Also, if my taxable income in 2020 and 2021 is $0, why is my tax liability $1568 in 2021?

[ColeenD3]

You still have to pay SE tax of 15.3% of your profit. This is an additional tax, not Federal income tax.

[Bsch4477]

Look at line 15 of Sch 1 for your deduction.  Even though you may not have an income tax liability you still have to pay self employment tax on your self employed income.