Every Indian manufacturer knows the sinking feeling: the customer accepts a quote, the order goes into production, and then the accounts team finds the HSN code was wrong, the tax was calculated intra-state when it should have been IGST, or the terms on the invoice do not match what was quoted. All of that is avoidable. Get the GST detail right on the quotation, carry it cleanly through the order, and the tax invoice takes care of itself.
What makes a quotation GST-compliant
A quotation sits before the tax point — it does not itself go into your GST returns — so “compliant” here means GST-ready: it shows the buyer exactly how the tax will fall so the eventual invoice matches. A well-formed Indian manufacturing quotation carries the following:
| Field | Why it belongs on the quote |
|---|---|
| Your GSTIN & the buyer’s GSTIN | Identifies both registered parties and lets the buyer claim input tax credit later |
| HSN / SAC code per line | Fixes the GST rate for each item and prevents rate disputes |
| Taxable value per line | The pre-tax amount on which GST is computed |
| CGST + SGST or IGST | The tax split, driven by place of supply (see below) |
| Place of supply / delivery state | Determines whether the supply is intra- or inter-state |
| Terms & validity | Payment, delivery, packing, freight, and how long the price holds |
| Amount in words | Indian numbering (lakh/crore) — removes ambiguity on the figure |
Confirm the exact GST treatment of your products — rate, HSN digits, and any exemptions or reverse-charge situations — with your CA or GST practitioner. This guide explains the structure; your CA confirms the specifics for your goods.
Quotation vs proforma invoice vs tax invoice
Buyers sometimes ask for a “PI” when they mean a quotation, so it helps to be clear about the three documents:
- Quotation — an offer to sell at a stated price and terms. No GST liability; fully revisable.
- Proforma invoice — a quotation dressed as an invoice, often used to raise a purchase order or an advance. Still not a tax invoice.
- Tax invoice — the GST document raised on supply/dispatch. This is what enters the returns and lets the buyer claim credit.
The practical takeaway: the quotation and proforma are pre-invoice documents you can shape freely, while the tax invoice is the regulated output. If the first two are built with correct GST data, the third is a formality.
HSN codes and choosing the right rate
The HSN code is the anchor of the whole thing. It classifies the product and, through that, fixes the GST rate. Putting the HSN on each quotation line does two jobs: it tells the buyer’s team exactly what they are buying for tax purposes, and it ensures the same rate flows to the invoice. For a job shop quoting machined components, a services element (say, a design or testing charge) may carry a SAC code and a different rate — so a single quotation can legitimately mix HSN and SAC lines. How many digits of HSN you must print, and the correct rate for your specific goods, are things to confirm with your CA, because they depend on your turnover and product classification.
Intra-state vs inter-state: the tax split
This is where quotes most often go wrong. GST is destination-based, so the place of supply — broadly, where the goods are delivered — decides the split:
| Scenario | Tax on an 18% item | Shown as |
|---|---|---|
| Supplier & buyer in the same state | Intra-state | CGST 9% + SGST 9% |
| Supplier & buyer in different states | Inter-state | IGST 18% |
A Pune supplier quoting a Pune buyer shows CGST+SGST; the same supplier quoting a Chennai buyer shows IGST. Reflecting this correctly on the quotation matters because the total the buyer evaluates should be the total they will be invoiced — a switched split can change how a buyer’s accounts team treats the credit.
Terms and amount in words
Price without terms is not really an offer. A manufacturing quotation should state validity (for example, “prices firm for 30 days”), payment terms, delivery period and location, packing and forwarding, freight and insurance basis, and whether GST is extra or inclusive. These are exactly the fields a buyer’s purchase team needs to raise a PO. And the amount in words, in Indian numbering — “Rupees Two Lakh Fifty Thousand only” — belongs on the quote, the order and the invoice as standard commercial hygiene.
Tired of invoices that don’t match the quote?
See a quotation with correct HSN codes and tax split convert into an order and a GST invoice with zero re-keying — in a 30-minute demo on your own data.
From quotation to tax invoice without re-keying
The real payoff of a GST-ready quotation appears when the order is won. In a document-driven system, the quotation’s item lines, HSN codes, rates and tax split are not thrown away on conversion — they become the confirmed order, and then the tax invoice, unchanged. That is the difference between a CRM that hands off cleanly and a stack of disconnected tools where the invoice is re-typed and drifts from the quote. See how the order flows from CRM into ERP and billing on one database.
How Fast CRM handles the GST paperwork
In Fast CRM Software, quotation terms and parameters are configured centrally so every quote prints the right commercial terms, and revisions are versioned with full history — so when a rate or a term changes during negotiation, the earlier version is preserved rather than overwritten. On winning, the quotation converts into an Order Acceptance, and the released order hands off to Fast Billing, which dispatches and invoices against that same order and shares the GST and e-way data with the accounts module. Amounts are printed in words in the Indian numbering system automatically. Because the whole chain — quotation, order, invoice — runs on one platform and one customer master, the HSN codes and tax split entered once on the quote are the ones that appear on the tax invoice. For accounting, an optional Tally sync passes the finished entries through.
None of this replaces your CA. The system carries the data correctly and consistently; your CA or GST practitioner confirms the treatment — rates, HSN digits, exemptions, reverse charge — for your specific goods and turnover. Get those two things working together and GST stops being a source of invoice disputes and becomes a box you tick once, at the quotation stage.
Frequently asked questions
Is a quotation a GST document?
A quotation is a pre-sale commercial offer, not a tax invoice, so it does not itself create a GST liability or feed the GST returns. But it should still be GST-aware — showing your GSTIN, the HSN/SAC codes, the applicable rate and whether tax is inclusive or extra — because the buyer’s purchase and accounts teams evaluate it on those terms, and because a well-built quote converts into a compliant invoice with no re-work. Always confirm the exact GST treatment of your goods or services with your CA or GST practitioner.
What is the difference between CGST/SGST and IGST on a quotation?
It depends on the place of supply. For an intra-state supply — supplier and place of supply in the same state — the tax splits into CGST and SGST (for example 9% + 9% for an 18% item). For an inter-state supply — different states — a single IGST applies (18%). A quotation should reflect the likely split based on where the goods will be delivered, so the price a buyer sees matches the invoice they will receive.
Do I need an HSN code on a quotation?
It is strongly advisable. The HSN (Harmonised System of Nomenclature) code for goods, or the SAC code for services, fixes the GST rate and lets the buyer’s team verify the tax treatment. Putting the correct HSN/SAC on the quotation avoids disputes later and means the same code flows through to the order and the tax invoice. The number of HSN digits you must show on the invoice depends on turnover — confirm the current requirement with your CA.
Should a quotation show the amount in words?
Yes — it is standard practice in India and expected on the order and invoice that follow. The amount in words, written in the Indian numbering system (lakh and crore), removes ambiguity about the figure and is treated as good commercial hygiene by buyers’ accounts departments. Fast CRM prints amounts in words automatically using an Indian-rupees-to-words converter.
How does a GST-ready quotation avoid re-keying at invoice time?
When the quotation, order and invoice run on one platform, the item lines, HSN codes, rates and tax split entered once on the quotation carry through to the confirmed order and then to the tax invoice. Nobody re-types the data, so there is no chance of the invoice showing a different HSN code or rate from the quote the customer agreed to. That single-chain approach is the core of the Fast Suite handoff from CRM to billing.
What commercial terms should a manufacturing quotation include?
Beyond price and tax, a manufacturing quotation should state validity (how long the price holds), payment terms, delivery period and location, packing and forwarding charges, whether taxes are extra or inclusive, and any freight or insurance basis. These terms are what turn a price into an offer a buyer’s purchase team can act on — and they should carry into the order so both sides are agreeing to the same document.