After you file

thanks for detailed answers. okay so back to my original question please tell me if I got everything correct:

 

1) I prepare my return. I end up owing something -  with or without estimated tax penalty (for me not so important because it will be very small amount anyway)....

2) I e file my return. now IRS knows how much I owe. I do not / cannot send payment in this step.

3) I receive confirmation that my tax return is accepted.

4) I go to direct pay, (now that I know exactly how much I owe) and I pay it (or whatever other payment method I may chose) that amount....And to send the payment, we have time until April 17 2023

5) IRS sends me a confirmation and they now know that the tax that I owed, is paid, and that's it.

 

Did I get all ok so far?

 

Just want to know the process. I will come to your answer for the estimated payment next.