Deductions & credits

no, it's what I am saying again and again. She meets the requirements. Question not about this.

 

This "excluded income" still taxed after the exclusion, but at a different tax rate. I clearly see that this income present in 1040 form and has no impact on AGI. But it makes an impact on the tax bill.
It adds around 10% when I am adding to return it and "excluding".

As I mentioned - I tried on TurboTax and efile tax calculators, and I see the same behavior with almost the same numbers.