If we are currently expecting a child, and the child is due before the end of the year, how are we able to add this child to the child tax care credit? And how?

[DoninGA]

The increase in the Child Tax Credit is effective on your 2021 tax return that you will file next year.  A child born in 2021 can only be added as a dependent on a 2021 tax return, not a 2020 tax return.

The IRS is working on adding ways to update your status for an advance of the child tax credit to be paid monthly in 2021.

Go to this IRS website for information - https://www.irs.gov/newsroom/irs-sending-letters-to-more-than-36-million-families-who-may-qualify-fo...

[Hal_Al]

@DoninGA  said "The IRS is working on adding ways to update your status for an advance of the child tax credit to be paid monthly in 2021"

Advance payments will not be allowed for expectant children.  The child will have to be born and have a SS# for that.  You will, most likely,  have to wait until 2022, when you file your 2021 tax return to get any of the expanded 2021 child tax credit.

But, no matter how late, in 2021, the child is born, you will get the full $3600.