It's an outside company.
i researched online that actually if employed as independent contractor, employees can withhold their own tax, which means that employees can pay their own tax by themselves. Since my boss "clarified" I am employed as an independent contractor (which in fact she never told me or has any legal documentation indicating that), and I never told her straight up that I want her to withhold my paycheck for tax. I think that is illegal for employer just directly withholds your entire paycheck for tax.

