Where can I get my 1040ES slips - respectively estimate how much I should be paying quarterly for the next year?

[KrisD]

They should have printed with your documents, unless Turbotax did not think you need to pay any. 

You can access your return from the Home Page of your account. 

Scroll down a bit to click "Your tax returns & documents". Then click on the year and print. 

https://ttlc.intuit.com/replies/7220715