Can you explain payment vouchers?

[Critter]

The 1040-V is for the 2018 balance due payment ( if you also owe the state there will be one for them as well).

The 4 1040-ES forms are for the quarterly estimated 2019 payments if you need to make them ...

How do I make estimated tax payments?

https://ttlc.intuit.com/replies/3301258

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