Hi,
Thank you for the prompt reply. I did not receive any notice that I was withholding too little, or I was required to make estimated payments, or to pay a required amount by a certain date. When I did my 2020 returns, Step 10 of my Illinois return (Underpayment of Estimated Tax Penalty) was blank. Does this mean there is no penalty and I just need to pay the underpaid amount?
Thanks
