How many children and their ages? Better double check your bank account to see how much Advance Child Tax Credit you got July-Dec. And each spouse should have received IRS letter 6419 saying how much they sent you (1/2 for each spouse).
You get Child Tax Credit of 3,600 for under 6 and 3,000 for 6-17. Minus the Advance you got. So it's hard to figure how you got 5300 on line 28.
