MIAMI (CBSMiami) – Time is running out for South Floridians scrambling to put the finishing touches on their federal tax returns ahead of Tuesday’s midnight filing deadline.

If you can’t file in time, be sure to file a form 4868 for a six month extension, but it’ll only give you more time to file, not to pay. If you decide not e-file and go the old fashioned way, be aware that South Florida post offices will not be open until midnight like they used to be.

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Unlike in previous years, post offices won’t be open until midnight to handle last minute form filers.

Employees at the Miami Processing and Distribution Center, 2200 NW 72 Avenue, will collect income tax returns in the parking lot until 9:00 pm only.

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Click Here to see how late your local post office will to open on Monday.

Customers should be cautioned not to give their tax return envelopes to any individuals who may be in the postal parking lots on Tax Day, April 15.  Hand-to-hand collections by unauthorized individuals could result in identity theft.

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If you’ve already filed an extension, the due date is October 15th but remember that an extension of time to file is not an extension of time to pay.