Retirement tax questions

I appreciate you provided hypothetical datapoints, but if the real numbers are near what you provided as the hypothetical, then the social security numbers are what is impacting this. 

 

before you change anything, look at each number on the Form 1040, lines 1-11b.  write them ALL down.

 

then add your $10,000 in 

 

then check Form 1040, lines 1-11b again.  what changed unexpectedly? i bet it's line 5b 

 

let me know what you find!