The invoice date is the date the invoice is issued, while the due date is the deadline calculated from the agreed payment terms.
State both dates explicitly and use the contract or accepted quote to decide whether terms run from issue, delivery, acceptance or another event.
Invoice date vs due date examples
| Terms | Invoice date | Invoice due date | What to print |
|---|---|---|---|
| Net 30 from invoice date | 5 August | 4 September | Invoice date: 5 August. Payment due: 4 September |
| Net 15 from acceptance | 5 August | Depends on documented acceptance | State the acceptance event and add the calculated date once known |
| Due upon receipt | 5 August | 5 August or the contractually defined receipt event | Use an explicit calendar due date as well as the wording |
| Deposit before work | 5 August | Before the scheduled start | State the deposit amount, deadline, and effect on scheduling |
The issue date is not always the tax point, supply date, or payment date. Do not backdate billing to make aging look better or change a due date silently to hide a late payment. If the client receives an agreed extension, keep the original invoice date and record the new commitment separately.
How long should a due date be? Use the contract, customer risk, cash flow, industry practice, and bargaining position. Net terms describe a period, but the explicit due date is what reduces counting disputes.
Write the date the customer must act on
Net 30 is shorthand, so print the actual due date beside it. Check whether the agreement counts from issue, receipt or acceptance, particularly when a buyer approves invoices through a portal. If an invoice is corrected, do not silently reset the payment clock. Agree whether the correction changes the due date and keep the explanation with the invoice.
Example
An invoice dated 5 August with Net 30 terms is normally due 4 September when counted as 30 calendar days after the invoice date.
What to watch for
Backdating an invoice or silently changing the due date can distort tax periods, aging reports and collection history, so document any agreed extension separately.
Put the next step into practice
Read our guide to purchase orders, invoices and bills for the related workflow. Explore Invoice Crowd invoicing to see the product capabilities relevant to your setup.
