IRA Contributions

For years, I've been doing backdoor Roth IRAs.  I'm now semi-retired, with uneven earnings.  While I'm doing a backdoor, my question has more to do with the IRA contribution, which in my case is nondeductible.

 

For 2024, my W2 and 1099 earnings were less than my IRA nondeductible contribution, which I then rolled over to a Roth.  Note that I received significant nonqualified deferred compensation, which from what I read does not count toward "earned income".

 

While I have not yet filed my taxes, Turbotax accepted this - again my contribution was less than my "earned income" (assuming my nonqualified deferred compensation receipts are not eligible).  Am I looking at something wrong?  Why would Turbotax accept this, without pointing out via an error message?

 

And if I overcontributed, since I haven't filed my taxes, can you direct me the correct process to address?