You file 941, Employer's QUARTERLY Federal Tax Return. QuickBooks defaults to this payer type.
944
You file 944, Employer's ANNUAL Federal Tax Return.
943
You file Form 943, Employer's Annual Tax Return for Agricultural
Employees, and you file Form W-2 for agricultural employees.
Military
You are a military employer and you file Form W-2 for members of the
uniformed services.
CT-1
You are a railroad employer and you file Form W-2 for employees covered
under the Railroad Retirement Tax Act (RRTA).
Household employee
You are a household employer, you file Form W-2 for household employees,
and you do not include the household employees' taxes on Form 941 or Form
943.
Medicare government employee
You are a U.S., state, or local agency and you file Form W-2 for employees
subject only to the 1.45% Medicare tax.