From the horse's mouth - dependent care expenses under a fringe benefit program (such as childcare vouchers) can be excluded from US taxable income, assuming certain conditions are met. The maximum exclusion is $5,000 (reduced to $2,500 for married filing separately). What isn't clear to me is whether a married couple filing jointly could exclude $5,000 per person or $5,000 jointly. They probably intended for it to be the latter.