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Avalara Help Center

Why is "The account number's check digit is invalid" appearing when I try to file?


You are trying to file a return but the error "The account number's check digit is invalid." is preventing you from filing.




  • This indicates the account number on the return is not recognized by the state's electronic filing portal
    • Correct your registration number in State settings
    • Contact us so we can manually update the return to your new number
    • All forms filed in future will automatically use the new number


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