Can "electronic payment of estimated tax" be filed separately?

[puravidapto]

If I missed "electronic payment of estimated tax" in the original return, can I file it separately? In amended return for example? It should be a separate filing unrelated with the original return.

I find it miserable that if it is missed, it is always missed as it is easy to miss "electronic payment of estimated tax", even if you set it up, but you need to check the box for electronic payment.

[sjrcpa]

For federal your only option is for you or client to set up at IRS Direct Pay.

There may be a couple of states where you can do estimates after the fact, but mostly not.