Households that employ domestic help, such as nannies or senior caregivers, are required to file and remit federal and state employment taxes for their employee, but surprisingly, many do not. Failure to pay the so-called “Nanny Tax” results in a tax gap that totals billions of dollars. In fact, unpaid nanny taxes are estimated to be $3.3 billion to $5.7 billion per year, according to a new study discussed at the June 2018 presentation at the IRS/Tax Policy Center Joint Research Conference on Tax Administration. It is estimated that only 5.3% of the estimated 3.6 million household employers complied with this requirement in 2015. (1)