When is the deadline for filing tax if you have already filed an extension?

Question

When is the deadline for filing tax if you have already filed an extension?

Answer 1

If you are filing an individual tax return (Form 1040, 1040-A or 1040-EZ) and filed the extension properly, you will have until October 15 to file your tax return.  

(In previous years, the initial extension request only got you an extension to August 15, with the option to file for an additional extension to October 15--the new system is a lot more friendly to the taxpayer)

The extension is only an extension to file your return--it is not an extension to pay your taxes.  If you have any tax due, you'll be liable for the tax plus interest.

Answer 2

90 days after April 15.