Business

GST Invoice Format India 2025 — Every Field Explained

✍️
ToolsWaala Team
May 5, 2026

Mandatory GST Invoice Fields

Under GST law, every B2B invoice must contain specific information to allow your customers to claim Input Tax Credit (ITC).

  <h3>Key Requirements:</h3>
  <ul>
    <li><strong>GSTIN:</strong> Both yours and the customer's (for B2B).</li>
    <li><strong>HSN Code:</strong> Mandatory for goods (4-8 digits based on turnover).</li>
    <li><strong>Place of Supply:</strong> To determine if it's IGST or CGST+SGST.</li>
    <li><strong>Invoice Numbering:</strong> Must be consecutive and unique for a financial year.</li>
  </ul>

  <div style="margin: 40px 0; padding: 24px; background: rgba(255,107,0,0.1); border-radius: 16px; border: 1px solid rgba(255,107,0,0.2);">
    <h4 style="margin-top:0">Stay Compliant!</h4>
    <p>Our GST Invoice generator automatically includes all mandatory fields and calculates taxes correctly.</p>
    <a href="/gst-invoice" style="color: #FF6B00; font-weight: 700; text-decoration: none;">Create GST Invoice →</a>
  </div>

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