Self employed

You don't need to add any 1099 forms, just start a Schedule C, and report the $425 as cash or check income.  You won't need their employer's tax number.  

To report this on TurboTax:

1. Open your return
2. Go to Schedule C
3. Answer Yes to Did you have any self-employment income or expenses?

Here's some information you may find helpful:

 A Guide to Self-Employment Taxes for Contractors, Freelancers, and Beyond