I used TurboTax for 2017 and just purchased the 2018 Premiere version. I am retired and pay quarterly estimated taxes via IRS EFTPS Web site. I have detailed spreadsheets (created by myself to suit my situation) showing my income for 2018 to help me determine the quarterly payments; did not pay estimated taxes based on 2017 tax liability due to new tax changes. I obviously do not have any 1099 tax forms yet and will not have them before the 1/15/2019 deadline for my final 4th Qtr/2018 estimated tax payment. I have manually calculated (via spreadsheets) what I think I will owe in taxes so that I end up paying over 90% of tax due, but prefer to end up owing money at the end of the year, rather than getting a refund. My question is - Is there anything in TurboTax 2018 that will allow me to estimate my taxes before I make this final 4th Qtr/2018 Estimated Tax payment to the IRS; which will be before I receive any 1099 tax forms for 2018. Stating the question another way - Can I input data into TurboTax 2018 without having my 1099 tax forms in hand?
Thanks for any help you can provide.
A.J.