What is an invoice: Types, Example, and Why It Matters for Your Business?

15 June, 2022
12 mins
Brett Johnson, AVP, Global Enablement

Table of Content

Key Takeaways
What Is an Invoice?
Types of Invoice
The Purpose of an Invoice: Why It Matters for Your Business
Invoice Example
How to Create an Invoice in 11 Easy Steps:
Using Automation to Streamline Your Invoicing Process

Key Takeaways

  • An invoice is a formal payment request from a seller to a buyer, outlining the cost of products purchased or services rendered in a transaction.
  • Invoices come in various types, such as pro forma, interim, and recurring, each tailored to specific transaction needs. 
  • Automating invoicing streamlines processes, reduces errors, accelerates payment cycles, and boosts overall productivity.


In the world of business, an invoice is a crucial document for both buyers and sellers. For sellers, an invoice helps expedite the payment collection process by notifying clients of the due payment. On the other hand, for buyers, invoices provide an organized record of expenses with itemized details, aiding in record-keeping.

In this article, we will cover everything you need to know about invoices – from understanding what an invoice is to why it is vital for your business, along with valuable tips to help you make the best use of your invoices and ensure prompt payment. Let’s dive in and explore the significance of this essential financial tool.

What Is an Invoice?

An invoice stands as a comprehensive record, detailing the goods or services offered by one party to another, accompanied by a clear statement of the sum owed for these transactions. 

They serve as a valuable tool for recording all sales transactions between a business and its clients, and they can help companies receive payment on time, ensuring a steady and reliable cash flow.

Types of Invoice


  1. To-pay request invoice: Once you deliver goods or services to customers, you send them this invoice to pay the amount.

  2. Pro-forma invoice: This is an indicative quote or detailed invoice that shows the purchaser what the final invoice will look like and provides the breakdown of the activities and the payments.

  3. Interim invoice: An interim invoice is often used when the transaction involves a longer period. The interim invoice keeps the customer updated and places the demand for interim payments as per completion of services or goods partly delivered.

  4. Complete and final invoice: The complete and final invoice is not only the payment request but also serves as the report for the completion of delivery of goods or services.

  5. Past-due reminder invoice:This type of invoice is generated and used when the customer has not paid the dues on time. It is a reminder to pay the amount and could also contain a penalty element.

  6. Recurring invoice:When you have a contract for regular delivery of goods or services with a customer, the recurring invoice comes into place. You can set up a schedule that works for both the customer and your organization to have a recurring invoice sent on a particular date. 

  7. Credit memo:Often, the acknowledgment of the payment received takes on the form of a credit memo denoting that the payment is credited to the customer’s account with you. A credit memo can also be used to call out short payments, if any, or acknowledge overpayment.

Before we jump into how to create an invoice, understanding its purpose and significance for your business is crucial.

The Purpose of an Invoice: Why It Matters for Your Business

The purpose of an invoice is to facilitate smooth and transparent transactions by providing clients with a detailed statement outlining the products and services rendered, their respective costs, the outstanding amount, payment due date, and payment methods.

Moreover, they assist businesses in performing the following functions:

  • Sales tracking: By maintaining comprehensive invoices, businesses can effectively track their sales, helping them gauge their overall performance.
  • Inventory management: For enterprises engaged in selling products, invoices play a crucial role in monitoring and managing inventory levels.
  • Forecasting future sales: Through the analysis of historical data recorded in invoices, businesses can make informed predictions about their future sales.
  • Recording business revenue: Invoices serve as a primary source for recording business revenue, facilitating accurate and organized tax filings.

In essence, invoices are indispensable tools that streamline financial processes, foster transparency, and contribute significantly to the growth and success of a business.

Invoice Example

Now that we know creating an effective invoice is crucial to getting paid on time, it is essential to understand each and every element of an invoice and what it looks like so you can write an effective invoice. With that in mind, here’s an example. 


Here are eleven components or elements of an effective invoice. Let’s look at each element one by one:

  1. Logo, address, and other contact information While it seems obvious, it is critical to capture the details of the seller or the supplier in the invoice. It ensures that the customer can plan the payment, arrange the funds required to pay, and select the right option. These details help the customer keep track of the payments.
  2. Number and date of invoice Most companies in the enterprise side of the market or the mid-market have more than one purchase process going on with dates that may be spread out over a period of time. It is essential to have the date and number of the invoice explicitly displayed.
  3. Name, address, and other customer details One of the best practices elements is to address the customer name, address, and other contact details (like the phone number and email address) of the customer’s contact person. This helps the finance department of the buyer’s company direct the invoice to the right person.
  4. Purchase order or contract information In B2B transactions, there is likely a contract or purchase order tagged to each transaction. One of the best practice elements in an invoice is to mention the purchase order or contract details to ensure that the customer also accounts for the payment.
  5. Description of goods and services When a B2B transaction takes place, the specification of the goods or services is vital to ensure that payment is made on time. It is best to include the description of the goods or services for complete clarity.
  6. Pricing and quantity details Due to the sheer volume of transactions in a B2B company, it is essential to explicitly provide details of the quantity sold and delivered along with the pricing to ensure complete transparency.
  7. Acknowledgment of receipt of goods or services Given the scale of operations and that different teams deal with the delivery acknowledgment and the payment of the goods, it is a good practice to add the acknowledgment details in the invoice itself.
  8. Subtotal of the amount due The pricing structure of goods and services in the B2B context is often complex and may include storage, transportation, shipping, and other charges. A best practice for invoicing is to ensure that you have the subtotal of the amount due (pricing related to the product or service delivery) displayed.
  9. Taxes, rebates, discounts, and deductions, if any The pricing of goods and services often includes local taxes, surcharges, and more. It is good to have the details in the invoice as it will help the customer claim rebates or concessions, plan for filing tax returns, and much more.
  10. Options and details for making payments The customer not only needs the pricing and the details of the product they have purchased but would also appreciate it if the invoices included easy options to make the payment. For instance, a good practice is your bank account details or embedding a link to enable payment.
  11. Other details like comments, notes, and more In the B2B world, there are chances that some changes take place even after an order is confirmed. The invoice should contain these comments and notes to ensure that all the parties concerned are updated about the changes.

How to Create an Invoice in 11 Easy Steps:

  • Step 1: In the header, include your business name, contact details, and a unique invoice number.
  • Step 2: Add your clients’ information, such as the client’s name, address, and contact details.
  • Step 3: Mention the invoice date when you issue the invoice.
  • Step 4: Clearly state the payment due date.
  • Step 5: Provide a detailed breakdown of goods or services rendered, including quantities and prices in an itemized list.
  • Step 6: Calculate the subtotal by totaling the amount before taxes or discounts.
  • Step 7: Include applicable taxes or any discounts in the taxes and discounts section.
  • Step 8: Sum up the final amount payable as the total amount.
  • Step 9: Specify your preferred payment methods and terms in the payment terms section.
  • Step 10: Add any relevant notes or instructions in the additional information section.
  • Step 11: Include your business’s terms and conditions at the end.

Once you start following these steps, creating an invoice will be easy. However, preparing timely and accurate invoices with all the necessary details month-on-month is not an easy task.

If you are wondering what the solution is, one way to manage invoices effectively within your accounts receivable (AR) processes is to automate them.

Using Automation to Streamline Your Invoicing Process

By leveraging invoice automation tools, you can streamline your invoicing process, allowing your finance team to focus on crucial business objectives. With automation in place, managing invoices becomes effortless, reducing errors and elevating customer satisfaction, while your team benefits from enhanced operational efficiency. 

Moreover, embracing end-to-end automation for accounts receivable (AR) further optimizes invoicing processes, freeing up your finance team to concentrate on core activities and strategic decision-making instead of mundane manual tasks.

 Benefits of Automating Invoicing


  1. Quick and accurate: Modern invoicing software can consolidate all customer-related data and create invoices quickly and accurately without much manual work. With modern invoicing software, you can add the details of the supplier or seller, and the customer’s data are clear and concise. You will find that using modern invoicing software saves hours of manual effort.
  2. Automatic reminders: Invoicing on time and reminding customers to pay on the due date is one of the most critical aspects of collections. When you automate the invoicing processes, you ensure that reminders to pay along with invoices are sent on time.
  3. Continuity of operations: Often, companies face a collections crunch when there is attrition in the invoicing department. However, you can mitigate this issue with invoicing automation. The software would ensure that invoices are generated on time and sent to the right customers.
  4. Enabling payment options: Another helpful feature of invoice automation is enabling payment links in the invoice itself. When you enable easy payment options in the invoice, it allows customers to take immediate action.


5 Drawbacks of Traditional Invoicing Systems


If you are still not convinced that automating your invoicing is crucial, here are five drawbacks of traditional invoicing systems and how they are holding you back.

1. Time-consuming

Manually drafting and sending invoices is a time-intensive process. This requires a lot of human involvement, thus slowing down the whole process. Manual invoicing delays receiving payments from customers and impacts the business’ cash flow.

The time for drafting and sending invoices depends upon the following factors:

  • The efficiency of employees
  • The workload of employees
  • The speed of postal services

2. No tracking and visibility

In a manual invoicing process, it is difficult to track whether the invoices have reached their destination or not. There is a high chance of invoices getting lost and not being delivered to the right address.

Invoices sent manually are often stored in physical warehouses for future reference. This means that in case of a dispute or for closing an invoice, your employees need to manually search through hundreds of documents to find the right documents. Moreover, paper invoices are prone to wear and tear, making them harder to store for future references. The current status of invoices remains unclear because traditional processes lack transparency.

3. Longer time to cash

Traditional billing and the invoicing systems being paper-heavy and manually-driven increase the time to collect payments and close the invoice (time-to-cash). Analysts are often burdened with a lot of invoices to draft which delays the process, thus affecting the subsequent collections and cash application workflows. Furthermore, tracking invoice delivery and ensuring that the customer has received it is also difficult.

Traditional invoicing is prone to errors and often takes up a lot of time settling disputes, thus delaying the resolution process.

Source: PYMNTS

4. Prone to errors

On average, an employee handles more than a hundred invoices regularly. In such scenarios mistakes are inevitable. Manual invoicing often leads to inconsistent creation, drafting, and sending of invoices which further delays payment processing.

5. Increased OpEx

Mid-market companies that use traditional invoicing systems spend a huge chunk of money per invoice delivered. The traditional invoicing system requires :

  • Manually printing invoices to be mailed
  • Sending it to customers via physical or digital channels
  • Storing the invoices in physical warehouses for future references

These requirements increase the operational and handling cost per invoice at both the sender’s and receiver’s end. On top of this, traditional invoicing often takes up a lot of time, effort, and money to solve disputes as employees need to manually search through all the documents for reference.


Understanding all the elements of an invoice and knowing the steps required to create one is essential for running a successful business. Moreover, by automating your invoicing process, you’ll improve accuracy and efficiency when requesting payment, ensuring smooth financial transactions, fostering strong client relationships, and elevating your brand’s reputation in the market.


  1. What is the difference between invoices, bills, and receipts?

    Invoices are requests for payment issued by the seller to the buyer, detailing the goods or services provided and their cost. Bills are similar to invoices but are typically used by service providers, while receipts are provided by sellers as proof of payment received from the buyer.

  2. When to issue an invoice? 

    Generally speaking, an invoice is issued once the agreed-upon goods or services have been delivered. However, in some cases, invoices are generated at regular intervals when the order is completed in a phased manner. 

  3. How long should you give a customer to pay an invoice?

    The time you should allow a customer to make payment on an invoice depends on the agreed terms of the purchase contract. Generally, the period can consist of anywhere between 15-60 days.

  4. Is an invoice a legal document? 

    While the invoice is generated based on a legal document—the buyer-seller agreement— it is not considered a standalone legal document. The invoice acts as a reminder or demand for payment.

  5. What can you do if a customer refuses to pay an invoice?

    When a customer refuses to pay an invoice, you need to do the following:

    1. Call the customer and discover what the reason for non-payment is
    2. Once the customer clarifies, take the next step accordingly
    3. If the customer has the ability to pay but does not want to pay, delve deeper to find the cause for this. In case it is a quality or specification issue, try and resolve it by taking corrective steps
    4. If the customer does not have the ability to pay the invoice, it is best to seek legal recourse and try to resolve the issue through the arbitration process
    5. Most importantly, tighten the credit onboarding process to minimize such instances in the future
  6. What is invoice compliance?

    It is a set of standards that businesses follow to ensure that their invoices are not only accurate but also compliant with regulations. These standards may vary across industries, but they typically include requirements for documentation, reporting, and payment.

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