Skip to main content
Avalara Help Center

How do I resolve "Input Header row missing or invalid"?


When importing it results in the error message "Input Header row missing or invalid".


Avalara Avatax


  • This error indicates the import file included an unexpected column header in row 1, or a column is missing, correct this by importing with the correct template
  • Get the correct template:
    • In the Avalara Admin console go to Tools > click Import Data > choose the type of import you need > click Download
  • Copy the information form your file and paste it into the new template (excluding the headers - row 1)
  • Import using the new file, make sure to select the import type for the template you are using