My mother in law lived with us the entire 2019 year after finding out she had stage four lung cancer. She received $1156/mo in social security and paid me $200/wk to be her caregiver. She passed awa

The income you receive from your mother-in-law as a caregiver for a family member is taxable income, but it is not subject to self-employment tax.  

You should report the income on line 21 of Form 1040.  In TurboTax:

1.  Go to Federal Taxes,
2.  Select Wages & Income,
3.  Select Less Common Income,
4.  Select Miscellaneous Income,
5.  Select Other Reportable Income to report this income.

I am sorry about the passing of your mother-in-law.