If you qualify under the safe harbor rule, you can amend your 2019 tax return to claim a refund for the underpayment penalty. To qualify you must have paid in either 90% of the tax owed this year or 100% of the tax liability of the prior year.
To amend your tax return using TurboTax, login to TurboTax and click on Intuit Account at the bottom of the dark border on the left. Select your 2019 tax return and click on the link to amend your return. You then want to navigate to Other Tax Situations, Additional Tax Payments, Underpayment penalties to enter you prior year information to qualify for the safe harbor rule.
