TurboTax calculated wrong interest penalty.

Did our 2024 return with TurboTax.

TurboTax calculated an underpayment penalty of $748.

I paid it.

 

Just got an IRS notice stating I overpaid the underpayment penalty and they are issuing a refund.

 

The over payment was by over $600.

 

A simple calculation and TurboTax can not get it right.

 

I worry what else is wrong in my return and not discovered / disclosed by the IRS.

 

dew