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Filing on the GST portal

You have the JSON - here's every step on gst.gov.in until the ARN lands, and every upload error decoded.

? How do I file GSTR-1 on the GST portal after downloading the JSON?
Upload → verify tables → Generate Summary → Proceed to File → File Statement → ARN.
! The portal says "Processed with Error" - how do I fix it?
Download the error report, decode the message, fix in AprilTax, regenerate, re-upload.
? GSTR-1 on the GST portal - the complete FAQ
Twenty quick answers: uploads, errors, EVC vs DSC, ARN, amendments, deadlines.
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