Any penalties are a percentage of the amount you owe, so if you expect a refund, just file whenever you can.
If you owe tax, and you have an approved extension to October 15, the IRS is granting an extension to February to taxpayers in a hurricane area. The extension is automatic and is based on your address, there is no form to fill out. However, an extension of the deadline to file is not an extension of the deadline to pay, and if you expect to owe tax, you should pay as much as you can now to reduce the later penalties and interest. You can make an electronic payment at www.irs.gov/paymemts, select 2017 form 1040 as the reason. See here for more https://www.irs.gov/newsroom/irs-extends-oct-15-and-other-upcoming-deadlines-provides-expanded-tax-r...
If you don't already have an extension, you are just going to be late and the hurricane does not provide a new extension.
Turbotax Online will close around October 20, so if you want to file later with Turbotax, you will need to download and install Turbotax on your own Mac or PC from Intuit or a reliable third party retailer. E-filing will also close so you can expect to print your return and mail it in.
