10 Essential Elements of an Effective Invoice


9 min


January 1, 2023

If you’re starting with invoicing, you want to make sure you’ve got everything right. You’ve come to the right place – in this post, we’ll explain the essential invoice elements. Read on to learn which 10 invoice components must not be forgotten on your invoice.

What to Include on an Invoice?

What is on an invoice? And why does all this matter? Let’s look closely at all the important invoice elements.

Since an invoice is your bill for services or products sold, you need to keep one around for company records. And after creating an invoice, you send it over to receive payment and keep track of transactions from customers.

The invoice is an extremely important part of any business transaction and has many uses to keep the company going strong. So whether you tend to create invoice online or in an app (check out our iPhone invoice app, iPad invoice app and Android invoice app), this tutorial will help you consider the importance of selected parts of an invoice.

An invoice maker does a lot of the hard work for you and allows you to create templates with plenty of easily customizable fields to work with. An invoice maker not only makes things simpler, but it also speeds up the process, optimizing company time. And thanks to it, you can rest assured all important parts of an invoice will be correctly filled in.

If your product or service isn’t paid in full when it’s received, you’ll need a professional invoice as a formal way of requesting payments. (And the invoices will serve as a paper trail afterward for the transaction.)

You’ve got to make sure, then, that each invoice is thorough and laid out in a way that is comprehensive and easy to understand. Ensure your formal invoice checks all the following boxes when creating it using one of the free invoice templates or building it in your invoice maker.

Parts of an Invoice

In this part we’ll show you what should not be forgotten on every valid invoice.

1. A Standout Header

Not everyone thinks the same way as everyone else, so don’t think that adding a distinct header to company documents is common sense. Label the invoice in clear text somewhere at the top, naming exactly what the document is.

This will save you a big headache and the confusion over what all these random papers flying around your office are. Include a logo in your header and make it look as professional and presentable as possible.

2. Invoice Number or a Unique Identifier

Every invoice should come with its own invoice number (or some other unique identifier) to separate it from the rest in the stack. It could be a filing code, a unique chronological number, or some kind of data-based purchase order number.

If you’re sending the invoice requesting payment, then you should make sure the organization doesn’t require any unique company details. This could be purchase order numbers or maybe specific billing codes.

A unique identifier makes all the difference in the world, especially when it comes to receiving timely compensation.

Parts of an invoice What to include on an invoice

3. Your Company’s Information

Near the top of the invoice, you should include the legal name, address, phone number and fax number (if applicable). This helps to differentiate who is paying and who is receiving payment (on top of keeping things really simple and clear).

If there are any issues along the way, any customers with an invoice can call a company number or send over information if needed. Make sure all your information is printed accurately and is in a place that is easily seen.

4. Date

One of the most important pieces of information you can include is the actual date of the transaction. This will help to simplify the process of cataloging when products were sold or services were rendered.

It also helps out if there is ever confusion over when something was sold. Say there was an issue with the shipping of a product: without the actual date of the transaction, how will anyone figure out where the post office went wrong?

5. Goods or Services Sold

This seems to many like the “meat” of the invoice. It doesn’t have to be presented in any particular way but should be fairly easy to read and understand. You’ll probably want to include things like:

  • The item name or title of service that was provided
  • The price of the item or service
  • The amount or quantity of product or service sold

There are bound to be other details about the product you might want to include. Keep them here in your “sold” section to keep things from getting confusing.

What is on an invoice products and services

6. Fees or Taxes as an Invoice Component

Going along with the products and services sold, you’ll probably want to include the price of any taxes or fees associated with the item. You might need to apply the rates or taxes in a different budget or record on the filing end.

The biggest takeaway here is to include any extra taxes or fees very near the price of the product or service. That way you can tack it all together in the “total amount due” field.

7. Total Amount Due

This one’s probably the most obvious on the list. Yes, you need to include the total amount due in the transaction on your invoice. Not only will this settle the amount, it also serves as a good reference point for you and the customer.

8. The Terms of the Transaction

Inevitably, the transaction will include some important verbiage in the transaction terms. They do not form a compulsory part of a formal invoice, however, to make the terms more apparent, it’s a good idea to include them on the invoice so that customers can easily reflect back on them.

The terms may include penalties for paying late or not paying in full. There could be additional percentages of the bill due at certain later times. Whatever your company’s terms, try to include as much of them as you can on each invoice.

9. A Unique Message on the Invoice

Set yourself apart with a designated spot for personalized messages. This can be used to say “thank you” to a client or make reference to something unique to the project.

Think about when you send a gift or flowers from an online order; there’s usually a place to include a special message to your loved one. Make all your customers feel like loved ones with personalized messages right on the invoice!

10. Due Date on the Invoice

The due date should absolutely appear on the invoice and might be the most important item on this list (along with the product description and total amount). The due date will help keep the process and invoice history organized.

Why do you need an invoice?

Understanding the importance of invoices is crucial for businesses and freelancers alike. An invoice is not just a request for payment. It serves as a legal document that outlines the specifics of a transaction between a seller and a buyer. It helps in tracking sales, managing inventory, and can be indispensable during tax time for accurate financial reporting.

Furthermore, a well-drafted invoice adds professionalism to your business, helps expedite payments, and provides a legal safety net for both parties involved.

Professional invoice templates with all the essential components

Essential Invoice Components in Your Invoice Maker

When laying out an invoice in your invoice maker, make sure to include these essential ten items for an effective document. There’s a lot of responsibility balancing on the invoice pages, so they should be as thorough as possible.

Looking for other beneficial tips for small businesses or professional invoicing? Check out the Billdu blog for all things helpful for small businesses and freelancers!

Billdu invoice
software for small businesses

Create invoices with all the invoice elements in a few clicks. Billdu is a user-friendly invoice software designed specifically to meet the needs of small businesses, streamlining billing, expense tracking, and financial management. Take control of your business finances with Billdu!

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Downloadable Invoice Templates with all the Essential Invoice Elements

We have prepared a set of free downloadable invoice templates. All the right parts of an invoice in the format you require.

SEO Specialist at Billdu

David Fačko is an SEO specialist at Billdu, one of the best-rated invoicing software for freelancers in the world.

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