Why is proconnect calculating an underpayment penalty when I paid 110% of last years tax liability?

[abctax55]

Were the estimates made timely?

[robinweaver]

No.  One large sale of stock with one large estimate.

[abctax55 · Accepted solution]

Then you need to annualize.  Look at Form 2210.  You have to tell the software that the big gain happened in the time frame of the estimate.

[robinweaver]

Thank you very much.

[abctax55]

YVW