GST Invoice Checklist
Tick off mandatory and recommended GST invoice fields, see your invoice completeness score, and avoid costly mistakes.
Wrong Invoice Number Series
Using separate series for different products/services is fine, but mixing formats or reusing numbers across FY causes mismatch in GSTR-1.
Missing Place of Supply
Without Place of Supply, you cannot determine whether CGST+SGST or IGST applies — leads to wrong tax type charged.
HSN/SAC Code Omitted
Businesses with turnover >₹5Cr must show 4-digit HSN. >₹50Cr need 6-digit. Missing HSN leads to GSTR-1 validation errors.
Incorrect GSTIN of Buyer
ITC rejection is the consequence. Always verify buyer GSTIN on GST portal before issuing invoice.
Not Generating e-Invoice
Businesses with turnover >₹5Cr must generate e-invoice from IRP. Non-compliance attracts ₹10,000 per invoice penalty.
No RCM Declaration
If GST is payable under Reverse Charge by buyer, this must be mentioned explicitly on the invoice.
◆ GST FILING & COMPLIANCE
Expert GST return filing (GSTR-1, GSTR-3B), e-invoicing setup, and GST audit support.