If I am not mistaken doesn't the fed government allow families to deduct $3,000 per child (2 max) as a tax credit for childcare expenses? In a way, that's even more valuable than typical MID.
I've looked into it.. but most of those credits phase out pretty early and are gone entirely for dual incomes over $160K combined. The childcare credit is pretty useless... We would save $600 a year MAX per child. BUT, if you pay a nanny.. you have to pay their portion of the taxes.. so it more than wipes out any credit just hiring and paying a nanny legally.
Even the child tax credit i think phase out begins at $110K... a couple making $55K each in San Francisco.. lose out entirely on the child tax credit by $130K mark.
The only real break is get another exemption/dependant to claim.