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https://turbotax.intuit.com/tax-tips/family/rules-for-claiming-a-dependent-on-your-tax-return/L8LODb...

Not to bore you with the fuff,  I will quote (emphasis mine) the relevant section of the FAQ:

Frequently asked questions about claiming dependents

How much can a dependent child earn?

A qualifying child can earn an unlimited amount of money and still be claimed as a dependent, so long as the child doesn't also provide more than half of their own support.

If the dependent child is being claimed under the qualifying relative rules, the child's gross income must be less than $5,050 for the year in 2024. This threshold increases to $5,200 for 2025.



Now let's run through the *current* IRS ITA (the actual ITA is started from a  "Begin" button will start a session so not linked here): 

Does my child/dependent qualify for the child tax credit or the credit for other dependents? | Inter...

After clicking "Begin"









Note the age and other questions below:
(EDIT: Had another screen shot in with different age for testing... this is the correct one)





Next question is well silly... why else am I on this form:




Now here is the income question that DID NOT APPEAR on the earlier version of the ITA (it may have if the answers to the above question were different but they weren't). I'll put $6k here but it can be any number >= $5200.00
 


Did not meet the Qualifying Relative gross income test!!!! 

EDIT: I had another test here that had my older son's BD. This screenshot below is the orrect one for a child that should qualify (BD is actually one year younger than my son in this test as I put year as 2002 but 2001 should work as well).




Now lets change the gross income to just below $5,200.00 (by a penny):




Now look at the next question! In previous versions of the ITA this came first so likely that is why I didn't see the income question. But now thew IRS has it all messed up:


Tada!! Fred qualifies! 



@DaveF1006  - Now I did it for you.