Where do i enter income from getting paid to take care of my grandfather who has dementia?

It depends.

If your income was reported on a W-2 form, you would report it in the Federal section of the program. 

1. Select Income & Expenses
2. Select Job (W-2)
3. Click Edit/Add to the right of the Job (W-2) 
4. The next page will have boxes that say "Add a W-2 for..."Select the appropriate taxpayer and enter the information for each W-2.

If your income was reported on Form 1099-MISC, report it as follows 

 in the federal interview section of the program.

1. Select Income & Expenses 
2. Select Self-employment income and expenses 
3. Proceed through the screens to enter your information 
4. You will be able to add expenses in this section as well as your income

Please see the link below from the IRS as it relates to the self-employment tax for family caregivers.

Family caregivers