What is the difference between an estimate and an invoice?

An estimate (quotation) proposes price and scope before the deal closes. An invoice is typically issued on or after supply and follows tax invoice rules. This tool formats estimates with estimate number and expiry, not post-supply tax invoice language.

Why include an expiry date on a quote?

Material costs, FX, and freight change. Expiry protects you from honoring stale prices. You can restate validity in Notes for legal clarity.

Can I use the same tool after the client accepts?

Yes—many teams copy line items into Create Invoices on this site or into their ERP, then assign real invoice series and tax dates per company policy.

Does the estimate support multiple GST slabs?

Each line item can carry its own GST%. That supports baskets with mixed rates, similar to how you would later bill on an invoice.

Is this suitable for government tenders?

It helps draft numbers. Formal tenders usually need PDFs, seals, and annexures per tender rules—export or reformat as your bid manager requires.

Can I describe phases or milestones?

Use Notes or split work into multiple line items (Phase 1 design, Phase 2 implementation) so clients see how totals build up.

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Generate Estimates

Create a pre-sales estimate with totals.

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Output

Select a template, then click Download (top button).

How to use

Use the form above, then follow these steps.

Produce a pre-sales price summary: same math pattern as an invoice, but the form asks for Estimate #, Estimate date, and Expiry date so you can show how long the quote stays valid.

1. Complete seller and buyer details. Including GSTINs helps B2B prospects validate your entity before they commit budget.
2. Enter Estimate #, Estimate date, and Expiry date. Expiry is your quote validity window; you can spell out “15 days” or similar in Notes as well.
3. List each proposed line with description, Qty, Rate, and GST%. Totals should mirror what you will invoice if the deal is won.
4. Use Notes for scope limits (what is out of pocket), delivery assumptions, or milestone schedules so acceptance is unambiguous.
5. Click Generate Output and share the text from the Output panel inside a proposal email or DOCX.
6. After sign-off, reuse the same structure when you raise a formal invoice (for example via Create Invoices) with invoice number and tax dates your process requires.

Show full guide & tipsOptional read — overview, examples, and context.

Overview

Produce a pre-sales price summary: same math pattern as an invoice, but the form asks for Estimate #, Estimate date, and Expiry date so you can show how long the quote stays valid. Intended for proposals before a purchase order— not a substitute for a tax invoice after supply.

Tips & use cases

Use this free online estimate generator when you need a professional, line-by-line quotation before the customer raises a PO—common for IT services, contractors, traders, and equipment vendors in India. Because it mirrors invoice-style math, your sales team avoids surprises when finance converts the accepted quote into a GST invoice. Expiry date and Notes fields help reduce scope creep: spell out what is included, payment milestones, and freight or installation assumptions. Like our other Staycold Solution business utilities, it is built for speed in the browser so you can respond during the same discovery call.

Questions & answers6 common questions — open if something is unclear.

What is the difference between an estimate and an invoice?: An estimate (quotation) proposes price and scope before the deal closes. An invoice is typically issued on or after supply and follows tax invoice rules. This tool formats estimates with estimate number and expiry, not post-supply tax invoice language.
Why include an expiry date on a quote?: Material costs, FX, and freight change. Expiry protects you from honoring stale prices. You can restate validity in Notes for legal clarity.
Can I use the same tool after the client accepts?: Yes—many teams copy line items into Create Invoices on this site or into their ERP, then assign real invoice series and tax dates per company policy.
Does the estimate support multiple GST slabs?: Each line item can carry its own GST%. That supports baskets with mixed rates, similar to how you would later bill on an invoice.
Is this suitable for government tenders?: It helps draft numbers. Formal tenders usually need PDFs, seals, and annexures per tender rules—export or reformat as your bid manager requires.
Can I describe phases or milestones?: Use Notes or split work into multiple line items (Phase 1 design, Phase 2 implementation) so clients see how totals build up.

Generate Estimates

Tool Input