how long does it take for IRS to process tax refund?

Possibly. Not likely.

The IRS changed the date to try to give you a more accurate idea of when you can expect your refund. They have been having issues with getting refunds out as quickly as last year (lots of people this year claiming First Time Homebuyers and filing paper returns because of that... it's slowed things down), so they've been altering estimated refund dates to reflect that.

I am coming to find out the same thing. Yesterday my refund date was April 20th and when I came online to check this morning it said May 4th. This sucks. I am going to call the IRS.. here is a number to call, maybe they can help.

IRS's Telephone Numbers

To check on the status of your refund, call the Refund Hotline at 1-800-829-4059.

Toll Free Telephone Services

Live Telephone Assistance for Individuals

Toll-Free, 1-800-829-1040. (In English and Spanish)

Monday � Friday, 7:00 a.m. � 10:00 p.m. your local time (Alaska & Hawaii follow Pacific Time). When calling, you may ask questions to help you prepare your tax return, or ask about a notice you have received.

IRS Refund Hotline.

Toll-Free, 1-800-829-1954

For refund information, have a copy of your current tax return, your social security number, filing status from the front of your return, and the exact whole dollar amount of your refund.