GST Refund_RFD-01

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Quick Summary

If you're encountering data validation errors when uploading your Annexure B JSON file for GST refunds (RFD-01), the issue often stems from incorrect date formats (DD-MM-YYYY), hidden characters in pasted data, or disabled Excel macros. Ensure your macros are enabled, paste data as values, check for special characters in invoice numbers, and verify numeric fields don't exceed two decimal places. Always use the latest utility from the GST portal and try uploading via an incognito browser window.

Padmapriya K

Padmapriya K (Querist)

26 May 2026 After downloading the latest utility from the GST portal for Annexure B and filling in all the details correctly, it shows a data validation error while uploading the JSON file. Kindly advise me how to solve this error

Aashok Kumar Sharma

Aashok Kumar Sharma

(Expert)

27 May 2026 Data validation errors during GST RFD-01 Annexure B JSON uploads are typically caused by incorrect date formats (must be DD-MM-YYYY), special characters or hidden spaces in copy-pasted data, or disabled Excel macros. To fix it, ensure macros are enabled, paste data as "Values" only to strip hidden formatting, validate the data inside Excel first, and upload the newly generated JSON via an incognito browser window.

Aashok Kumar Sharma

Aashok Kumar Sharma

(Expert)

03 November 2026 To add to the above points, ensure that numeric fields do not exceed two decimal places, check that invoice numbers are strictly alphanumeric without unsupported special characters, and confirm that you are using the absolute latest JSON generation utility downloaded fresh from the GST portal.

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