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GST Invoice for Maharashtra Businesses — GST Code 27, GSTIN & Rules

Maharashtra is India's largest GST contributor — home to Mumbai's financial sector, Pune's IT industry, and Nashik's manufacturing belt. Maharashtra's GST state code is 27, meaning every GSTIN registered in the state starts with "27". Maharashtra businesses must charge CGST + Maharashtra SGST for intra-state supplies and IGST for inter-state supplies.

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Maharashtra GST Quick Reference

Detail Value
GST State Code 27
GSTIN Format 27AAAAA0000A1Z5
State Capital Mumbai
Key Business Hubs Mumbai, Pune, Nagpur, Nashik, Aurangabad
Major Industries IT, Finance, Manufacturing, Pharmaceuticals, Textiles
Intra-state tax CGST + SGST (Maharashtra)
Inter-state tax IGST

GST Invoicing Rules for Maharashtra Businesses

A Mumbai or Pune business invoicing a client within Maharashtra must charge CGST (Central) + SGST (Maharashtra State) — split equally at half the applicable GST rate each. For a Mumbai IT company billing a Pune client at 18% GST: CGST 9% + SGST 9%. If the same company bills a Bengaluru client, it charges IGST 18% instead. Maharashtra is a high-volume e-invoicing state — businesses with turnover above ₹5 crore must register invoices on IRP before sharing. Maharashtra also has a significant number of SEZ units (Jawaharlal Nehru Port, MIDC areas), and supplies to SEZ are zero-rated under GST.

Example

A Nashik pharmaceutical manufacturer invoices a Chennai distributor ₹5,00,000 for medicines (HSN 3004, 12% GST). Inter-state supply: IGST 12% = ₹60,000. Total invoice: ₹5,60,000. If invoicing a Pune distributor instead: CGST 6% (₹30,000) + SGST 6% (₹30,000) = ₹60,000. Same total.

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FAQs

What is Maharashtra's GST state code?

27. Every GSTIN registered in Maharashtra starts with 27 — e.g., 27ABCDE1234F1Z5.

Do Maharashtra businesses charge CGST or IGST?

CGST + Maharashtra SGST for clients within Maharashtra. IGST for clients in any other state.

Is e-invoicing mandatory for Maharashtra businesses?

Yes, for aggregate turnover above ₹5 crore. Maharashtra being a high-GST state has many businesses above this threshold.

What is the GSTIN format for Maharashtra?

27 + 10-digit PAN + entity number + Z + check digit. Example: 27AABCU9603R1ZM.

Why Businesses Stop Using Excel for GST Invoices

Manual GST calculation mistakes

One wrong CGST/SGST split or a misapplied rate triggers notices and ITC denial for your buyer.

Slow invoice creation

Copying last month's Excel file, updating dates, recalculating — 20 minutes for what should take 30 seconds.

Formatting breaks on every device

Excel invoices look different on every printer and PDF converter. Clients complain about unreadable layouts.

No easy sharing or payment link

Sending PDFs over WhatsApp with no way for clients to pay directly slows down collections.

Incorrect tax type (IGST vs CGST+SGST)

Excel can't auto-detect intra vs inter-state supply. Wrong tax type = ITC rejected for your buyer.

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Disclaimer: The information in this article is for general informational purposes only and does not constitute professional tax, legal, or financial advice. GST rules and rates are subject to change. Consult a qualified CA or tax professional before making compliance decisions.

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