Deductions & credits

The reporting form goes out next January  so before you pay her one more nickel have her fill out a W-9 or W-8 form whichever is appropriate.   

 

Form W9 is intended for US persons.    https://www.irs.gov/forms-pubs/about-form-w-9

 

The equivalent form that applies to non-US persons is W8-BEN (for individuals) and W8-BEN-E (for entities).   https://americansoverseas.org/en/knowledge-centre/filing-tax-returns/what-is-w8/

https://www.irs.gov/forms-pubs/about-form-w-8