Invoice Notes and Additional Information Guide

What are invoice notes?

Invoice notes are additional messages included on an invoice to provide information that does not belong in the main invoice fields. They can give the customer extra context about the transaction without making item descriptions or other sections unnecessarily long.

The exact contents of an invoice note depend on the transaction. Some invoices may only need a short message, while others may benefit from information about the work, supporting documents, customer instructions, or another relevant detail.

What can you put in invoice notes?

Invoice notes can contain different information depending on what the customer needs to know. Examples include:

• A short thank you message
• Additional information about the work
• A reference to supporting documents
• Relevant project information
• Information about a completed service
• A short customer message
• Other details specific to the transaction

Why add notes to an invoice?

The standard sections of an invoice are designed to identify the seller, customer, charges, dates, and amount due. There are situations where useful information does not fit comfortably into those fields.

A notes section provides somewhere for that information without changing the purpose of the invoice. This can help customers understand the transaction while keeping the main invoice structure organised.

Keep essential invoice information outside the notes

A notes section should support the main invoice rather than replace important invoice fields. Essential information should remain clearly displayed where the customer expects to find it.

For example, an invoice number should remain in the invoice details, the amount due should remain within the totals, and individual charges should be shown through appropriate item descriptions rather than hidden inside a long note.

Invoice notes vs item descriptions

Invoice notes and item descriptions have different purposes. Item descriptions explain the individual goods or services being charged to the customer, while notes provide additional information about the invoice or transaction more generally.

If a contractor charges for three separate services, each service should normally be described in the relevant line item. A note can then provide extra context that applies to the invoice as a whole.

Invoice notes vs terms

Notes can provide general additional information, while terms normally explain conditions connected with the transaction or agreement. Keeping these sections separate can make an invoice easier to read.

For example, a friendly customer message can appear in the notes section while relevant terms can appear in a separately labelled section. This prevents an important condition from becoming buried inside an unrelated message.

Where should invoice notes go?

Invoice notes commonly appear below the main invoice items and totals or within a dedicated section near the bottom of the document. This allows the customer to review the essential billing information first and then read any additional details.

The section should have a clear label such as Notes or Additional Information. A clear heading is particularly useful when the invoice contains both notes and a separate terms section.

What is additional information on an invoice?

Additional information is a broad term for useful details that support the invoice but are not part of its core billing information. It can include notes, references, project context, instructions, or other information relevant to the transaction.

The information should have a clear purpose. Adding unrelated text simply makes the invoice longer and can distract from the details the customer actually needs.

Using notes for project and job information

Businesses completing project based work may use invoice notes to provide a small amount of additional context about the job. For example, a note could mention that the invoice relates to a completed stage or refer the customer to another document containing more detail.

Important project identifiers such as a project name, job number, work address, or service period can still be displayed in their own clearly labelled fields when they need to be easy to find.

Can you add a thank you note to an invoice?

A short thank you message can be included when it suits the business and customer relationship. Messages such as thanking a customer for their business can make an invoice feel more personal without affecting the billing information.

A thank you note should usually remain brief. The invoice is still a business document, so the message should not distract from the amount due, charges, dates, and other important information.

Can you add terms and conditions to an invoice?

Businesses can include relevant terms or refer to applicable terms on an invoice when appropriate. A dedicated terms section is usually clearer than placing lengthy conditions inside general invoice notes.

The contents and significance of contractual terms can depend on the agreement and jurisdiction. An invoice should therefore accurately reflect the terms that apply to the transaction rather than introducing unrelated conditions without context.

Should payment information go in invoice notes?

Important payment information should be easy for the customer to locate. If an invoice has dedicated fields or sections for payment details and payment terms, those are normally clearer places for essential payment information than a general notes section.

Notes can still provide supporting context where useful, but customers should not need to search through several paragraphs to discover how much they owe or when payment is expected.

How long should invoice notes be?

Invoice notes should normally be as short as possible while still communicating the necessary information. A few clear sentences are easier to scan than a large block of text covering several unrelated subjects.

If substantial information needs to be communicated, consider whether it belongs in another document or a dedicated section instead. Keeping the invoice focused makes its main billing information easier to understand.

Avoid vague invoice notes

A useful invoice note should give the customer information they can understand and act on where necessary. Vague messages can create questions instead of answering them.

For example, writing See previous details may be difficult to interpret if the customer has received several documents. Referring clearly to the relevant project, document, or information provides more useful context.

Do all invoices need notes?

No. An invoice does not need additional notes simply to fill empty space. If the main invoice fields already communicate everything the customer needs, an additional message may provide little value.

Notes are most useful when there is genuinely relevant information that does not fit naturally elsewhere. Keeping optional sections purposeful can produce a cleaner and easier to read invoice.

Example of invoice notes

A freelancer who has completed a design project might include a short note thanking the customer and stating that the invoice relates to the final agreed stage of the project. The individual design services and charges would still appear separately in the invoice items.

A contractor might instead use the notes section to refer to supporting job documentation supplied separately. Both examples add context without duplicating the invoice number, totals, or detailed line items.

Check additional information before sending

Notes can easily be overlooked when an old invoice is copied to create a new one. Before sending an invoice, check that any additional information still relates to the correct customer and transaction.

Remove outdated messages and check names, project references, dates, or other details included in the notes. The additional information should be just as accurate as the main invoice fields.

Keep invoice notes easy to read

Additional information should not overwhelm the rest of the invoice. Clear headings, short paragraphs, and concise wording help preserve a professional layout while still giving the customer the information they need.

If notes contain several unrelated subjects, consider separating the information into appropriate invoice sections instead of creating one large block of text.

Create an invoice with notes and terms

Invoice notes give you flexibility to add useful context while keeping the main billing information structured. The best notes support the invoice rather than repeating information already shown elsewhere.

InvoiceAtlas lets you create professional invoices with customer details, custom items, notes, terms, taxes, discounts, payment information, and other useful details before downloading the finished invoice as a PDF for free.