Ok ... if you need to compute estimates for 2019 you can use the 2018 Online version to do so ...the FORMS mode is only available in the downloaded version.
How
do I make estimated tax payments?
https://ttlc.intuit.com/replies/3301258
Can
TurboTax calculate next year's federal estimated taxes?
https://ttlc.intuit.com/replies/4242911
Can
TurboTax calculate the estimated payments for next year's state taxes?
https://ttlc.intuit.com/replies/3301735
