If you want to be taxed and treated for insurance purposes like an employee, you can always incorporate as a sole-person Inc or Ltd or GmbH and hire yourself as the sole employee. Granted: There are some overheads having to do with annual accounts etc where it would be beneficial if those overheads could be distributed over more than one employee, but the more you earn the less that will matter in proportion to your earnings.
But, on the whole, you will have more opportunities at saving on taxes as a business than as an employee and more opportunities to "slip through the cracks" of the system when your business is so small that the tax authorities can't be bothered paying as close attention to it as they otherwise would.
