Some common IRS rejection codes are R0000-500-01, R000-503-01, F1040EZ-510 and R000-902-01. They refer to various common errors in the tax return, such as a mismatch in the primary or secondary taxpayer's Social Security number or name, as stated by Common Form.
Each IRS reject code refers to a specific error in an electronically filed tax return. R0000-500-01 indicates a mismatch in the Social Security number or name of the primary taxpayer. R0000-503-01 indicates a mismatch in the SSN or name of the secondary taxpayer. F1040EZ-510 refers to the error where the primary taxpayer on a tax return is a dependent on another person's tax return. R0000-902-01 means that the SSN on the tax return appears in another electronically filed tax return, according to Common Form.