My wife and I are married and filing jointly. We have a newborn who was born in Oct. in 2017. We have a gross income of 153k. The IRS calculator says we qualify for the child tax credit but using turbo tax deluxe says we do not. I believe I read there is a cutoff for 110k combined income and for every $1000 over that amount you subtract $50. Does this sound correct for why we wouldn't qualify?