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On my line 38 of my 1040, "Estimated Tax Penalty", it says $250.  A few weeks later, a letter from the IRS said I owed $117 additional.

 

Sure seems to me that "Estimated Tax Penalty" means there was a penalty accessed for not paying enough estimated tax.  But in any event, why didn't TurboTax determine I should have paid $367 rather than $250?

 

Also the formula on line 37 says the amount there is equal to amount on line 24 - amount on line 33.  However TurboTax used the formula for line 37 to be:  amount on line 24 - amount on line 33  + amount on line 38.

 

??