Get your taxes done using TurboTax

You can go back into your already filed TurboTax Desktop return and calculate/print your 2018 estimated taxes.

With your return open, select:

1. The PERSONAL tab
2. Then Other Tax Situations
   
3. Scroll down to "Other Tax Forms" 
4. Click Start next to "Form W-4 and estimated taxes"
5. The second screen (after W-4 withholdings) allows you to modify your 2018 estimated taxes

Once you are done, you can go to the FILE tab and Print/Save for your records.