What is the interest rate to enter on form 2220 line 30 for a 2019 tax return

[qbteachmt]

You should bookmark this:

https://proconnect.intuit.com/articles/federal-irs-underpayment-interest-rates/

And this:

https://www.irs.gov/newsroom/interest-rates-remain-the-same-for-the-second-quarter-of-2020

And you can subscribe to federal e-newsletters and get all of that by email.

[sffdib]

Is there an updated link to this page? I cannot find the same page for year 2021.

[sjrcpa]

I think it is still 3%. You can find it on irs.gov