09 July 2026
While filing GST refund filing jason file annexure b receiving error uploaded jason file which was created via offline has invalid format. how to resolve
10 July 2026
The "invalid format" error occurs when the uploaded JSON file structure doesn't align with the portal's active verification schema. This is generally caused by using an outdated version of the utility, manual file renaming, or corrupted text strings (like hidden formatting or spaces) copied from external ledgers.
Download the latest Annexure-B template directly from the GST portal. Clear out extra spaces, input structural fields strictly via the spreadsheet dropdowns, click the macro's validation button, and upload the freshly generated JSON without changing its name.