Do I pay balance now or wait for bill in mail. If now, how do input electonically

[SharonD007]

You can do either one.  

Refer to the TurboTax Help article: How to Pay Taxes: 10 Ways to Pay Your Tax Bill and How can I pay my federal taxes?

There are several options when you have a tax bill that you don't have the money to pay.  Refer to the following articles: How to Pay Taxes: 10 Ways to Pay Your Tax Bill, Unable to Pay Your Tax Bill? Here’s What To Do, and the IRS article What if I can’t pay my taxes?