The CTC for 2020 is still $2000. The bill under consideration in Congress would raise it for tax year 2021 (returns filed in 2022).
The Child Tax Credit can only reduce your tax bill to zero — you don’t get any unused portion of the credit back as a refund. However, you may be able to claim the Additional Child Tax Credit, which allows you to receive up to $1,400 of the $2,000 Child Tax Credit per child as a refund. TT handles this automatically if you qualify.
CTC appears on Form 1040, Line 19.
ACTC appears on Form 1040, Line 28.
2020 Form 1040 (irs.gov)
