Child Tax Credit Tracker: Online Calculator and 2 Tools to Check Eligibility, Monitor $3,600 Payment The IRS introduces two new online tools that let you check your eligibility status to determine if you and your family qualify for the child tax credit payment, as well as verify or opt out of the monthly transactions to receive the money in one lump sum. Photo : Marisa Howenstine/Unsplash The IRS introduced two new online tools that let you (1) check your eligibility status to determine if you and your family qualify for the child tax credit payment and (2) verify or opt out of the monthly ...