Can you file a tax extension if you get Obamacare subsidies and 1095-A? Just make sure it's fine thanks!

If you don't want to do all the forms in the next few days, can I file an extension- even if I have a 1095-A to file if getting subsidies etc? Just making sure that's not an issue and there isn't some sort of filing date if you get a 1095-A. 

 

I have to make a payment also....I did read that a payment counts as an extension as well? 

 

Apologies for the number of questions thanks!

 

If you send in the paper extension form, how do you know they receive it?   Thanks!