Underpayment Penalty Fee

[cofe]

I'm at the end of my taxes and it says I owe $36 underpayment penalty for not paying estimated taxes in 2020.  Then I'm asked when I'll file and it assumes April 15, 2021 if I leave it blank.  Why don't I get until May 17, 2021 to pay this?

[ChondelLO]

An extension doesn't give you extra time to pay your taxes — but it will keep you from getting a late filing penalty. For more information please visit the TurboTax Help article below.

How do I file an IRS extension (Form 4868) in TurboTax Online?

[cofe]

I'm not asking about an extension.  I'm talking about the IRS extending the filing deadline to May 17 for this year.

https://www.irs.gov/newsroom/tax-day-for-individuals-extended-to-may-17-treasury-irs-extend-filing-a...

[JeffreyR77]

You will have an underpayment penalty if you have a balance due greater than $1,000 on your return. 

The penalty is computed on the amount of tax unpaid by April 15th. 

You will be assessed LATE payment penalties on taxes paid after April 15th.