why does my 529 plan contributions hurt my state refund amount

[dunstar20]

When I enter my 529 plan contributions of $7,500 my state refund decreases by $400 instead of increasing by $1,500. In years past it has always increased by the credit amount.

[KrisD15]

To clarify, which state?

[dunstar20]

Indiana.  Years prior when the max was $5,000 i would always get the 20% or $1,000 added to my state return.  This year when I entered it not only did it not increase my return but hurt it.  Did this last year as well.  Ever since the max contribution has increased to $7500

[dunstar20]

The way I see it is the last 2 years I have been screwed out of $3,000. Or $1,500 a year not including what it deducted from my return.  

[AnnetteB6]

To take a closer look at the situation, it would be very helpful to have a diagnostic copy of your tax file.  The diagnostic file will not contain personally identifiable information, only numbers related to your tax forms.  

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@dunstar20