Top 8 Common IRS FIRE Errors (and How to Fix Them)

When filing through the IRS FIRE System, you may run into errors. These mistakes delay processing and can cause rejections. Below are the eight most common IRS FIRE errors, their causes, and how to fix them.
1. TCC Not Authorized
Error: “The IRS has not authorized your TCC for this type of return.”
Cause: Your Transmitter Control Code (TCC) does not match the return type.
Solution: Verify your TCC with the IRS. Then confirm it matches the form type, such as 1099 or 1098.
2. Invalid File Format
Error: “File format is not acceptable; must be ASCII text.”
Cause: You uploaded the wrong file or a non-ASCII format.
Solution: Double-check the file. If needed, resubmit the correct ASCII file that follows the 750-character format.
3. Mismatched TIN and Name
Error: “TIN and Name combination does not match IRS records.”
Cause: The Taxpayer Identification Number (TIN) or Social Security Number (SSN) does not match IRS data.
Solution: Validate names and TINs using the IRS TIN Matching Program before filing.
4. Missing or Misaligned Record Types
Error: “Your file does not contain a complete set of ‘T’, ‘A’, ‘B’, ‘C’, and ‘F’ records.”
Cause: Records are missing or not aligned to the 750-character length.
Solution: Review the file. Ensure all record types are included and formatted correctly.
5. Control Totals Do Not Match
Error: “Totals in the ‘C’ Record do not match the sum of the payee ‘B’ records.”
Cause: Totals in the control record do not reconcile with payee records.
Solution: Review your totals. Ensure no shifting errors occurred in the ‘B’ records.
6. Invalid Tax Year
Error: “Invalid tax year in file.”
Cause: The tax year is wrong. For example, it may be a future year or one the IRS does not support.
Solution: Confirm the correct tax year before you submit the file.
7. Invalid Special Characters
Error: “Special characters not allowed in name or address fields.”
Cause: You used symbols such as &, %, or # in the file.
Solution: Remove or replace special characters with acceptable alternatives.
8. Payee TIN Errors
Error: “Payee TIN is missing, invalid, or all zeros.”
Cause: TIN fields are blank, placeholders (000-00-0000), or formatted incorrectly.
Solution: Enter valid and correctly formatted TINs. Verify each record before submission.
Final Tips to Avoid IRS FIRE Errors
Always review your file before uploading.
Follow IRS formatting guidelines for ASCII text.
Validate names and TINs in advance using the IRS TIN Matching Program.
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