Invoice vs Quotation: What's the Difference?

If you run a business, you've likely come across both Invoices and Quotations — but many small business owners use the terms interchangeably, which can cause confusion for clients. This guide breaks down exactly what each document is for and when to use them.

What Is a Quotation?

A quotation is a document sent before a sale is finalized. It outlines the estimated cost of goods or services a business proposes to provide, giving the client a clear idea of pricing before they commit.

What Is an Invoice?

An invoice is issued after goods or services have been delivered (or agreed upon), formally requesting payment. Unlike a quotation, an invoice represents a finalized transaction and often includes payment terms and a due date.

Key Differences

1. Timing

A quotation comes before the sale; an invoice comes after (or at the point of) the sale.

2. Purpose

A quotation is a price estimate meant to help the client decide. An invoice is a formal request for payment.

3. Legal Standing

An invoice is typically treated as a legal record of a transaction for accounting and tax purposes. A quotation is not — it's simply a proposal that may or may not be accepted.

4. Validity

Quotations often come with a "valid until" date, since prices can change. Invoices have a due date for payment instead.

What Should Each Document Include?

Quotation

• Business and client details
• Itemized list of goods/services with estimated pricing
• Validity period
• Terms and conditions (if applicable)

Invoice

• Business and client details, including GSTIN if registered
• Invoice number and date
• Itemized list with final pricing and tax breakup
• Payment due date and accepted payment methods

Common Mistakes to Avoid

• Sending an invoice when a client hasn't yet agreed to the pricing — a quotation should come first
• Forgetting to include a due date on invoices
• Not clearly labeling the document as "Quotation" or "Invoice" — this causes confusion
• Missing GST details on invoices for GST-registered businesses

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EasyFormats.in's Quotation/Invoice Maker lets you switch between both document types with a single click. Add your items, and totals — including tax — calculate automatically. Choose from multiple professional designs, and download or print instantly.

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FAQs

Q1. Can a quotation be converted into an invoice?

Yes — once a client accepts a quotation, businesses typically issue an invoice with the same or finalized pricing.

Q2. Is a quotation legally binding?

Generally, no. A quotation is an estimate, not a binding agreement, unless explicitly stated otherwise.

Q3. Do I need to charge GST on a quotation?

Quotations usually show estimated tax for reference, but GST becomes formally applicable once an invoice is issued.

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