Here's how:

1. Go to Workers and select Contractors.

2. Select Add a contractor.

3. Enter their information based on their W-9.

4. Click Add contractor.

Then, you need to start tracking their payments for 1099. Follow the steps below.

1. Go to Expenses and select Vendors.

2. Select the vendor you want to track.

3. Click Edit.

4. Select Track payments for 1099 by placing a checkmark.