TurboTax is recommending I make estimated tax payments in 2018. When I decline this, it then asks "Are you SURE you do not want to prepare estimated taxes for 2018?" and tells me that my tax situation suggests that I should and if I do not, I may owe an underpayment penalty.
However, TurboTax has also calculated that I am due a federal refund. Why would I need to pay estimated taxes in 2018, if I've actually overpaid in 2017? What is the logic?
The program prints those vouchers as a suggestion. If you are certain that you don't need to make estimated tax payments, just disregard those vouchers. See the TurboTax FAQ below for additional explanation.
<a rel="nofollow" target="_blank" href="https://ttlc.intuit.com/questions/1901110-do-i-need-to-make-estimated-tax-payments-to-the-irs">https...>
You can ignore them. The estimated payments are optional to pay. They are estimates for next year. Turbo Tax doesn't want you to owe next year. They might have printed out if you got a one time large income this year. Like if you took a IRA or 401K distribution. They DO NOT get sent to the IRS or state with your return.