Don’t panic if your return has been rejected by the IRS. The most common cause for rejection is simple error. The first thing to do is make sure all of your basic personal information is correct. If any names, social security numbers, birth dates, or employer identification numbers are incorrect, the IRS may reject a return. The IRS has your correct information on file, which will cause any incorrect information to be immediately red-flagged. Double check the accuracy of your information before you submit it to be processed and e-filed. Try to avoid using punctuation marks such as periods, commas, colons, and semicolons. Also make sure you have the correct format for numbers such as dates and telephone numbers.