No, you can add more $$ to the extension then apply the additional refund to 2021 on the tax return though and use it as the first estimated payment.

Otherwise you'll have to mail or make the estimated payment on the IRS website.

Extension yes. Q1 estimate no unless you include it in the extension payment.

SJR, I wonder if that person is a tax preparer? Just wondering... Also wondering if that person's Google Voice is working or if they have a copy of Webster's Dictionary? Just wondering....😉😃👍 ... just my opinion...

I have no idea. They do type worse than I do.