Can I file 1040-X before paying for Form 1040?

[ivanchok]

This is my first time using TurboTax to amend for a prior tax return done using Sprintax. If not, would 1040-X require extra payment on top of Form 1040?

[MarilynG1]

If you need to Amend a prior year 1040NR, you will end up preparing a Form 1040, then amending it.

So you'll pay the price for buying the prior year desktop software, and then there's no additional cost to Amend. 

Here's more info How to Amend a Prior Year Return.