Configure GST

Get GST Manager producing correct tax invoices by filling in GST Manager → Setup → Company & Tax.

Prerequisites: your GSTIN (15-character GST registration number) and PAN to hand.

GST Manager → Setup → Company & Tax

Why this matters

Your home state and GSTIN drive the tax engine: CGST + SGST (sale inside your state) vs a single IGST line (sale to another state), and B2B (customer has a GSTIN) vs B2C (they don't).

1. Company info — enter Company name and Company GSTIN. Shared with your AcelleMail admin contact (editing here updates it). Type the GSTIN carefully; it prints on every invoice — see GSTIN validation.

2. Address and home state — fill Address line 1/2, City, ZIP / PIN, Country, then set State (your registered home state). State help: "Used to decide CGST+SGST vs IGST. Matched against the Indian states registry."

3. Tax & GST — set the Default GST rate (e.g. 18) and Tax label ("Shown as the label of the consolidated tax line on PDFs (e.g. GST)."; most sellers leave it as GST).

4. SAC & Purpose code — enter your SAC code (service accounting code) and Purpose code (RBI export-payment code). Both are "Applied to every line item on every invoice." See GST classification.

5. Invoice numbering — set the Invoice number format and Next invoice number. The format uses a sprintf template:

   %08d      → 00000001
   %d        → 1
   INV-%06d  → INV-000001

6. Save — click Save changes; you'll see "Settings saved."

7. Verify — download an invoice and confirm it carries your GSTIN, the correct tax split, and your numbering.

These two are core settings

The invoice number format and next number are AcelleMail core settings, shared with general settings — changing them here changes them everywhere. Set the next number to continue your existing sequence rather than reset it.

Continue with your invoice logo, footer and bank details in Invoice identity and bank details.

Related pages

• GSTIN validation
• Invoice identity and bank details
• GST classification
• Settings reference