Hal_Al
Level 15

Deductions & credits

You will need to get the State's 2018 payment voucher and mail it with your payment. Your state's 2018 voucher's may or may not be available in 2017 turboTax. You may be able to pay  at the state's web site. You may want to check with your state to verify that they are accepting payments.
We have verified that CA, WI & OH are. Let us know if your's does.

For how to enter in TurboTax, see https://ttlc.intuit.com/questions/4143060-where-in-turbotax-can-i-enter-estimated-state-taxes-for-ta...