Invoice Due Date Calculator
Invoice Payment Due Date
Understanding Payment Terms
Payment terms on an invoice specify how many days the customer has to pay from the invoice date. The most common payment term in Australia is Net 30, meaning payment is due 30 calendar days after the invoice date.
Common Payment Terms Explained
| Term | Meaning | Days to Pay | Best For |
|---|---|---|---|
| Due on Receipt | Pay immediately | 0 | Retail, small one-off jobs |
| Net 7 | Due within 7 days | 7 | Urgent freelance work, deposits |
| Net 14 | Due within 14 days | 14 | Small business, recurring services |
| Net 30 | Due within 30 days | 30 | Standard business-to-business |
| Net 60 | Due within 60 days | 60 | Large companies, government contracts |
| Net 90 | Due within 90 days | 90 | Enterprise, construction industry |
| EOM | End of month | Varies | Monthly account reconciliation |
| EOM + 30 | End of month + 30 days | 30–61 | Large corporate accounts |
Australian Invoice Requirements
The ATO requires tax invoices to include specific information for GST-registered businesses:
- Your business name and ABN
- The date of issue
- A description of items supplied
- The GST amount (or a statement that the total includes GST)
- Your payment terms and due date
Late Payment in Australia
- Payment Times Reporting — Large businesses (revenue > $100M) must report their payment times to small businesses under the Payment Times Reporting Act 2020
- Interest on late payment — You can charge interest on overdue invoices if your terms include a late payment clause
- Debt recovery — For unpaid invoices, you can escalate through formal demand letters, mediation, or the small claims tribunal (up to $25,000 in most states)
Calculate Business Days
Need to know the due date in business days? Use our business days calculator.
Business Days CalculatorFrequently Asked Questions
What does Net 30 mean on an invoice?
Net 30 means the full payment is due within 30 calendar days of the invoice date. For example, an invoice dated 1 March with Net 30 terms is due by 31 March.
What is the most common payment term in Australia?
Net 30 is the most common payment term for business-to-business invoices in Australia. However, many small businesses and freelancers use Net 14 to improve cash flow.
Can I charge interest on overdue invoices?
Yes, you can charge interest on overdue invoices if your terms and conditions (stated on the invoice) include a late payment interest clause. A common rate is 1-2% per month.
What does EOM mean on an invoice?
EOM stands for End of Month. It means payment is due by the last day of the month in which the invoice was issued. EOM + 30 means payment is due 30 days after the end of the month.