You do know that filing an extension is only an extension on "filing". If you owe money, and don't file the proper paperwork for a payment plan, you will be hit with penalties as well. So while leaving them go is fine, just make sure you don't owe money. I'm sure if you are getting a refund they could care less (why would they... they get the interest on your money!).
I can understand it's hard to come up with that much money to pay in, but why wouldn't you make sure you are claiming the right about to begin with?
That's all I'll say, and now I'll shut up.
