Quotes vs Invoices: What's the Difference?

Understanding when to use quotes versus invoices is essential for professional business operations. Using the wrong document can cause confusion and payment issues.

Quick Comparison

Aspect	Quote	Invoice
When sent	Before work	After work
Purpose	Propose pricing	Request payment
Binding	Usually not	Yes
Numbered	Optional	Required
Payment terms	Not applicable	Required

What is a Quote?

A quote (also called quotation or estimate) is a document that:

Proposes prices before work begins

Describes what will be provided

Sets expectations for the customer

Helps customers compare options

Quote Must Include:

Your business details

Customer details

Description of goods/services

Itemized pricing

Total amount

Validity period

Terms and conditions

Quote Best Practices:

Be specific about what's included

Set clear validity period (e.g., 14 days)

State what's NOT included

Include payment terms if accepted

Note any conditions that may change price

What is an Invoice?

An invoice is a document that:

Requests payment for delivered goods/services

Creates a legal record of the transaction

Must meet tax requirements (for VAT)

Triggers accounts receivable

Invoice Must Include:

"Tax Invoice" label (if VAT registered)

Your business name and VAT number

Customer details

Unique invoice number

Date

Description of goods/services

Amounts (excl VAT, VAT, total)

Payment terms and due date

Payment methods

The Sales Process Flow

Customer inquiry → Understand needs

Quote sent → Propose solution and price

Quote accepted → Agreement to proceed

Work performed → Deliver goods/services

Invoice sent → Request payment

Payment received → Close transaction

When to Use Each

Use a QUOTE when:

Customer asks for pricing

Work hasn't started yet

Customer is comparing options

Project scope needs definition

Large or custom projects

Use an INVOICE when:

Work is complete

Goods have been delivered

Services have been rendered

You need payment

Recurring billing

Converting Quotes to Invoices

After quote acceptance:

Confirm scope hasn't changed

Convert quote to invoice (LEDGA does this automatically)

Update any changed details

Add invoice number and due date

Send to customer

Pro Forma Invoice

A pro forma invoice is a preliminary invoice sent before work/delivery. Used for:

Customs purposes (imports)

Requesting advance payment

Confirming order details

Note: Pro forma is NOT a tax invoice.

Common Mistakes

With Quotes:

No validity period

Vague descriptions

Forgetting to update expired quotes

Not following up

With Invoices:

Sending before work is done

Missing required information

Wrong calculations

Not following up on unpaid

LEDGA Quote & Invoice Features

LEDGA handles both seamlessly:

Professional templates - Look credible

One-click conversion - Quote to invoice

Automatic numbering - Sequential and organized

Status tracking - See what's pending

Customer portal - Customers view online

Payment links - Easy online payment