I cannot find anywhere what the deadline is for me to file. I was approved for an extension, but until when?

[xmasbaby0]

You have until October 15, 2019 to e-file your 2018 return; after that e-filing will shut down and you have to print sign and mail it.

When you requested your extension you were supposed to pay your estimated tax due.  Did you enter the payment you made into your tax return?  Go to Federal>Deductions and Credits>Estimates and Other Taxes Paid>Other Income Taxes  This will show up on line 17 of your Form 1040

[cmocpasc]

October 15, 2019 is the deadline to file when you are on extension.

[DoninGA]

October 15, 2019 is the last day to e-file a 2018 tax return with an extension to avoid a failure to file penalty of taxes are owed.

If the 2018 tax return is being filed for a tax return or no taxes are owed then there are no penalties for filing the 2018 tax return after the due date.

Using TurboTax the online editions will be shutting down after 10/15/19.  After that date the 2018 tax return can only be printed and mailed.

[fmhansen]

October 15, 2019