Many families stuggle to find child care for their young children. Without adequate child care, many parents cannot work to the fullest extent: their household income is lower; and their career opportunities are diminished. In turn, business productivity is lower and tax revenues are lower. Inadequate child care acts as an economic drag across the US economy. This Report derives the full economic burden of this child care deficit for the US economy. Applying an economic model from a new nationally representative survey of parents with children aged under 5, the dollar burdens of inadequate child care are calculated for working parents, for businesses, and for US taxpayers.