Invoice fundamentals
The invoice date is the date the invoice is issued. The due date is the deadline for payment. Payment terms connect the two by defining the payment period.
What Is an Invoice Date?
The invoice date records when the seller issued the document. It often starts the payment period, unless the agreement says otherwise.
What Is a Due Date?
The due date is the calendar deadline shown for payment. Displaying an actual date is clearer than relying only on a term.
Invoice Date vs Due Date
Invoice date
When the invoice is issued.
Due date
When payment should arrive.
How Payment Terms Connect the Two Dates
A term such as Net 30 commonly means payment is due 30 calendar days after the invoice date, but contracts and local practices can define it differently.
Due on Receipt
This asks for prompt payment when the customer receives the invoice. Clarify the actual date if immediate processing is unrealistic.
Net 7
Fictional example: invoice 3 August 2026, due 10 August 2026.
Net 15
Fictional example: invoice 3 August 2026, due 18 August 2026.
Net 30
Fictional example: invoice 3 August 2026, due 2 September 2026.
Net 60
Fictional example: invoice 3 August 2026, due 2 October 2026.
Date Examples
| Term | Invoice date | Due date |
|---|---|---|
| Net 7 | 3 Aug 2026 | 10 Aug 2026 |
| Net 30 | 3 Aug 2026 | 2 Sep 2026 |
Weekends and Business Days
State whether a term uses calendar or business days. If a deadline falls on a weekend or holiday, the agreement or local rules may determine the effective deadline.
Common Date Mistakes
- Showing terms that conflict with the due date.
- Using a service date as the invoice date without explanation.
- Forgetting month lengths and leap years.
- Leaving the customer to calculate the deadline.
Frequently Asked Questions
Can the invoice date and due date be the same?
Yes, for an immediate-payment arrangement, if that matches the agreement.
Are Net terms calendar days?
They often are, but the contract or local practice may define them differently.
Can a due date be changed?
The parties can agree to a change. Record it clearly and keep both parties informed.