https://ttlc.intuit.com/community/taxes/discussion/how-is-the-tax-penalty-calculated/01/174288#M70655 <P>I see Form 2210 line 5 of Part I uses 90%, but I thought the IRS changed this to 85% and more recently to 80%. Is the IRS' change to 85% (or 80%) (A) the threshold amount to determine whether you owe a penalty and if owing a penalty you use 90% in line 5 to calculate the amount; or (B) should you just use 85% (or 80%) in line 5 to calculate the amount? It is not clear to me.</P><P>Thank you<BR /></P> Sat, 01 Jun 2019 15:29:52 GMT samzandt 2019-06-01T15:29:52Z https://ttlc.intuit.com/community/taxes/discussion/how-is-the-tax-penalty-calculated/01/174288#M70655 <P>I see Form 2210 line 5 of Part I uses 90%, but I thought the IRS changed this to 85% and more recently to 80%. Is the IRS' change to 85% (or 80%) (A) the threshold amount to determine whether you owe a penalty and if owing a penalty you use 90% in line 5 to calculate the amount; or (B) should you just use 85% (or 80%) in line 5 to calculate the amount? It is not clear to me.</P><P>Thank you<BR /></P> Sat, 01 Jun 2019 15:29:52 GMT https://ttlc.intuit.com/community/taxes/discussion/how-is-the-tax-penalty-calculated/01/174288#M70655 samzandt 2019-06-01T15:29:52Z https://ttlc.intuit.com/community/taxes/discussion/the-changes-to-form-2210-underpayment-of-estimated-tax-b/01/174289#M70656 <P>The changes to Form 2210,&nbsp;Underpayment of Estimated Tax by Individuals, Estates&nbsp;and&nbsp;Trusts, are scheduled to be updated in a release currently planned for March 29, 2019. There is a link within the answer below that outlines all of the changes that will be made.&nbsp;</P><P> </P><P> <A href="https://ttlc.intuit.com/replies/7339313" target="_blank">https://ttlc.intuit.com/replies/7339313</A> </P> Sat, 01 Jun 2019 15:29:53 GMT https://ttlc.intuit.com/community/taxes/discussion/the-changes-to-form-2210-underpayment-of-estimated-tax-b/01/174289#M70656 ChristieB 2019-06-01T15:29:53Z