Monday marks a day after traditional tax day, but there's no need to panic if you didn't get your federal return in the mail by the 15th.
You actually have until midnight, Tuesday night.
If you're a procrastinator and haven't filed yet, here's what you need to know. The IRS says you may want to consider filing electronically if you've put it off this long.
Any requests for an extension have to be made by midnight Tuesday.
The IRS will process about 130 million returns this year.