If I can't pay to e-file until the 19th, will I still get penalized?

[MaryEllen]

You can file a free extension at https://turbotax.intuit.com/irs-tax-extensions/

Then your return will not be late.

File the extension even if you owe tax and cannot pay at this time. 

Without the extension, you will have a late filing penalty of 5% of the tax liability. 

[LukeG]

Please see link to guide below regarding late filing:

https://ttlc.intuit.com/questions/2547642-what-s-the-irs-penalty-if-i-miss-the-april-filing-deadline