Actually my 2020 tax may be the last tax that I have filed in the US because I was in the US on work visa only. Since I have left US and may not come back for work due to Covid etc, so my only worry is that since I owe some amount in 2020 taxes so I put my bank account details for IRS to direct debit those amounts that I owe. But I do not want IRS to direct debit these 2021 estimated payments out of my bank account since they have my bank account details.
