India, April 15 -- Tax Day is here, so it's time to file and submit your federal income tax returns. The Internal Revenue Service (IRS) deadline of April 15 for filing all the tax returns has finally arrived but if you still haven't submitted it, then there are a few last-minute tips and useful resources the IRS recommends you on extending and tracking your refunds:

- File them online - Using IRS Free File and IRS Direct File, you can now prepare and file income tax returns using guides on the website itself. IRS recommends this is the best way to file or request for an extension.

- Request an extension by today - Users can use the IRS Free File to submit an extension request, but the extension of time to file won't be an extension of t...