If you qualify for the advance child tax credit (CTC) payments, online sign-up is now available through a designated IRS tool. The CTC tool allows taxpayers who are not required to file a 2019 or 2020 individual income tax return to sign up to receive the advance CTC payments. Taxpayers who use the tool can also claim the 2020 recovery rebate credit and the third economic impact payment if you haven’t already done so…