You can generally get information about your refund 72 hours after IRS and State Departments acknowledge receipt of your e-filed return, or three to four weeks after mailing a paper return. Have a copy of your tax return handy. You will need to provide the following information from your return:

Your Social Security Number (or Individual Taxpayer Identification Number)
Your Filing status (Single, Married Filing Joint Return, Married Filing Separate Return, Head of Household, or Qualifying Widow(er))
The exact whole dollar amount of your refund

Then click on one of the following links:
Federal Refund
State of Delaware
State of New Jersey 
State of New York 
Pennsylvania (Income Tax)
Pennsylvania (Property Tax/Rent Rebate)