Offer your insights or judgment on the input financial query or topic using your financial expertise. Reply as normal question answering

Nanny taxes and payroll service
Whether to employ a payroll service to handle the taxes (and possibly the payroll itself) is a matter that depends on how savvy you are with respect to your own taxes and with using computers in general. If you are comfortable using programs such as Excel, or Quicken, or TurboTax, or TaxAct etc, then taking care of payroll taxes on a nanny's wages all by yourself is not too hard.  If you take a shoebox full of receipts and paystubs to your accountant each April to prepare your personal income tax returns and sign whatever the accountant puts in front of you as your tax return, then you do need to hire a payroll service. It will also cost you a bundle since there are no economies of scale to help you; there is only one employee to be paid.