I have 3 child dependents and 1 adult dependent, but I am only getting 4,500 on the child tax credit. Last year I got 6,500. Is there a change in the limit this year?

[xmasbaby0]

The child tax credit for 2022 was $2000 per child UNDER the age of 17, with a "refundable" amount of $1500 per child.  For 2023 the CTC is still $2000, with a refundable amount of $1600 per child.   

If you have an adult dependent or a child older than 16, you get the $500 credit for other dependents for them.

Look at your 2023 Form 1040 to see the dependent-related credits you received

PREVIEW 1040

https://ttlc.intuit.com/questions/1901539-how-do-i-preview-my-turbotax-online-return-before-filing

Child Tax Credit line 19

Credit for Other Dependents line 19

Earned Income Credit line 27

Additional Child Tax Credit line 28

https://www.irs.gov/help/ita/does-my-childdependent-qualify-for-the-child-tax-credit-or-the-credit-f...

[AmyC]

I believe one of the children has an answer wrong in the personal info section  and isn't showing on your return. 

When a child turns 17, they are no longer considered a child for the credit but instead go over as another dependent like the adult.  The math is not adding up. $2,000 for two children (4000) plus $500 for 2 adults totals $5,000- IF you have no tax liability. If you have a tax liability, then all the numbers change and your caps would be as above.