This is a California state return rejection related to Form 540 or 540EZ. For 2025 filings, this reject code usually means:
The Social Security Number (SSN) or ITIN for the primary taxpayer (or spouse) does not match IRS/SSA records. California cross-checks SSN/ITIN with IRS and SSA
Step 1: Verify SSN
Step 2: Verify Name Format - The name must match exactly what’s on file with SSA. If recently married, confirm SSA records were updated. Remove extra spaces or punctuation.
Step 3: Confirm Filing Status and
Step4: Resubmit your e-file
Make sure the correct taxpayer is listed as primary and you didn’t accidentally swap spouse and primary. Once corrected, resubmit your return. If the problem persists, you may need to file your CA state return by mail.