Does he want you to fill out a W4 or a W9? The W2 is what employers give out at the end of the year to report the wages paid and deductions to the IRS.
The W4 is to report your ssn and how much withholding to take out of your pay. Is he or will he be taking taxes out? Then you are an employee.
A W9 is for independent contractors to give their ssn or EIN to the payer. Then you would get a 1099NEC at the end of the year and report it on Schedule C for self employment income.
Seems like it would be too much work and cost for him to pay you as an employee. Most employers would rather pay people as contractors with a 1099NEC not a W2.
