Since you already filed the 2018 return log in and scroll down and click on ADD A STATE to open the archived return ...

How does TurboTax calculate my estimated tax payments?

https://ttlc.intuit.com/replies/3301730

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