Also, to add on - part of the reason I don't think I need to also submit Schedule H is because my payroll service submits form 941 on my behalf with the 1040-ES payments:
"A common mistake that household employers make is reporting their payroll twice. This happens when both Schedule H and Form 941 are filed in the same year. Many business owners file Form 941 quarterly and report wages there. Then, when tax season rolls around they apply these same figures to Schedule H and, therefore, pay the employment tax twice.
Be careful not to make this mistake and avoid paying too much or becoming subject to an IRS investigation to resolve the issue."
