Jun 9, 2026 · 6 min read
From GSTIN on every document to CGST/SGST/IGST detection — a practical guide to billing clients the right way.
A compliant invoice needs your GSTIN, the client's GSTIN, HSN/SAC codes and the correct tax split. ProposalBolt fills these in automatically the moment a client pays.
Bill a client in another state and you charge IGST; same state means CGST + SGST. Getting this wrong means redoing invoices. We detect it from the billing address.
Sync paid invoices straight to TallyPrime or Zoho Books so your CA isn't chasing you at filing time.
ProposalBolt doesn't just write your proposals. It learns how to win.
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