What Date Should Be on an Invoice?

What date should you put on an invoice?

In most situations, the invoice date should reflect the date you issue the invoice to your customer. If you create and send an invoice on 15 August 2026, for example, 15 August 2026 would normally be used as the invoice date.

Using the actual issue date creates a straightforward record for both you and your customer. It shows when the invoice entered your invoicing records and provides a reference point for identifying and tracking the payment request.

This becomes particularly important when you create multiple invoices because each invoice can be organised using its unique invoice number and issue date.

What is the invoice issue date?

The invoice issue date is the date associated with issuing the invoice to the customer. It is commonly displayed near the top of an invoice alongside details such as the invoice number, payment due date, and payment terms.

For a simple transaction, the invoice issue date may be the same day that the work is completed. However, this will not always be the case.

A freelancer could finish a project on Friday but prepare and issue the invoice the following Monday. In this situation, the date the work was completed and the date the invoice was issued would be different.

Should an invoice be dated when work is completed?

The date work is completed does not necessarily have to be the same as the invoice date. Businesses may invoice immediately after completing work, at the end of a project, at regular billing intervals, or according to payment arrangements agreed with the customer.

If you complete a service on 10 August but issue the invoice on 12 August, the invoice can show 12 August as its invoice date while separately recording 10 August as the service date where that information is needed.

Keeping these dates separate can make the transaction easier to understand because the customer can see both when the work occurred and when the payment request was issued.

Invoice date example

For example, imagine a freelance designer completes a project and invoices the customer two days later. The invoice could contain:

• Service completed: 12 August 2026
• Invoice date: 14 August 2026
• Payment terms: 14 days
• Due date: 28 August 2026

Can the invoice date be different from the service date?

Yes. The invoice date and service date can be different because they describe different parts of the transaction.

The service date identifies when goods were supplied or services were performed, while the invoice date identifies when the invoice was issued. A business may therefore complete work before preparing and sending its invoice.

For businesses that invoice customers periodically, one invoice may also cover several services or pieces of work completed during a particular billing period rather than a single service date.

How the invoice date affects the due date

The invoice date can be important when payment terms are calculated from the date the invoice was issued. If a customer is given fourteen days to pay from the invoice date, the payment due date will be fourteen days after that date.

For example, an invoice dated 5 August with fourteen day payment terms would normally have a payment deadline of 19 August when the agreed terms begin from the invoice date.

Displaying the exact due date as well as the invoice date can make this clearer for the customer. Instead of calculating the deadline themselves, they can immediately see the date by which payment is expected.

Should you use the date you create or send the invoice?

Invoices are often created and sent on the same day, making the choice straightforward. However, you might prepare an invoice in advance and send it later.

For clear record keeping, the date shown should accurately reflect how you are recording and issuing the invoice rather than accidentally carrying over an old date from another document.

Whichever invoicing process you use, keeping it consistent makes your records easier to follow. Creating invoices promptly after work is completed can also reduce unnecessary delays before the payment process begins.

Common mistakes when dating an invoice

Invoice dating mistakes can occur when businesses reuse old documents, create invoices manually, or forget to check the details before sending them.

A wrong date may confuse the customer about when the invoice was issued or when payment is expected. It can also make your own invoice records harder to organise.

Before sending an invoice, check the important dates and make sure they accurately represent the transaction.

• Using the date from an older copied invoice
• Leaving the invoice date blank
• Confusing the invoice date with the due date
• Using the service date without clearly identifying it
• Entering a due date that conflicts with the payment terms
• Using inconsistent date formats

What date format should you use on an invoice?

The date format should be clear enough that the customer can easily understand it. Written or partially written dates can be particularly useful when invoices are being sent internationally because numeric date formats differ between countries.

For example, 08/09/2026 could be interpreted as 8 September or 9 August depending on the date convention being used. Writing 8 September 2026 removes this ambiguity.

Whatever format you choose, using it consistently across the invoice helps keep the document professional and easy to read.

Can you change the date on an invoice?

If you notice an incorrect invoice date before sending the invoice, you can correct it before providing the document to the customer.

If an invoice has already been issued, changing its date can affect the accuracy of your records and potentially other information connected to the transaction. Rather than casually altering an issued invoice, consider how the correction should be recorded within your invoicing and accounting process.

Checking the invoice number, invoice date, due date, customer information, item details, and totals before sending the document can help prevent these problems.

How to clearly show dates on an invoice

Important dates should be clearly labelled so customers do not have to guess what each date represents. Labels such as Invoice Date, Due Date, and Service Date make the purpose of each date immediately understandable.

The invoice date and due date are commonly positioned near the invoice number and other important invoice details. Service dates can be included with the relevant service information when necessary.

A consistent layout also makes invoices easier to review when customers receive several invoices from the same business.

Create an invoice with the correct date

Before sending an invoice, make sure its date accurately represents when the invoice is being issued and that any payment deadline matches the terms agreed with your customer.

InvoiceAtlas allows you to enter an invoice date and due date alongside your invoice number, customer information, item descriptions, prices, taxes, discounts, notes, and payment terms.

Once the information has been checked, you can download the completed invoice as a PDF and send it to your customer.