“Net 30” normally describes a period for payment, but the start point still needs to be clear. Thirty days from invoice issue, receipt, delivery or acceptance can lead to different dates. Agree the trigger and print the actual due date on the bill.
This guide explains the wording and planning choices. It does not set the legal terms for a particular contract or tell you what penalty you may charge.
Compare the dates, not just the labels
For this fictional example, the parties agree calendar days counted from an invoice issued on 19 October 2026, with the issue date as day zero. The calculation is:
| Agreed period | Due date under this example |
|---|---|
| Net 15 | 3 November 2026 |
| Net 30 | 18 November 2026 |
| Net 60 | 18 December 2026 |
If the agreement uses business days or a different trigger, do not use these dates. Weekends and holidays should be dealt with under the actual terms and applicable rules, rather than by silently changing a printed date.
Choose a period that fits the project
- Your cash needs: When do you pay materials, subcontractors or other project costs?
- The buyer’s process: Does it pay on fixed runs, and what approval must happen first?
- Project duration: Would agreed stage billing avoid funding a long job until its end?
- Relationship and risk: Do you have reliable payment history or are you onboarding a new buyer?
Suppose a fictional £1,500 project requires £600 of outside costs before delivery. Extending payment from 15 to 60 days means funding that outlay for longer. It does not tell you that Net 15 is always better: a buyer may have a workable approval cycle that you can plan around. Discuss it before work starts.
Write a usable term
Payment is due in GBP on 18 November 2026, being 30 calendar days from the invoice issue date of 19 October 2026 under our agreed terms. Please use invoice CD-2026-044 as the payment reference. Send invoice queries to [business contact].
Adapt this to the agreement. Adding a new term to the footer after completing the work does not establish that the customer accepted it. Keep the accepted quote or contract with the issued bill.
Separate a discount from a penalty
“2/10, Net 30” commonly describes an early-payment discount with a later full-payment deadline. If using an arrangement like this, state the eligible amount, deadline, tax treatment and full amount due in plain language. Do not assume every reader interprets shorthand the same way.
Late-payment interest, collection charges and consumer rights are separate legal questions. UK business-to-business rules include statutory provisions and limits on agreed terms; see GOV.UK’s late commercial payment guidance. Do not apply those rules automatically to a consumer bill or another country’s transaction.
Track the handover as well as the deadline
Invoice | Issued | Delivery route | Approval reference Agreed due date | Amount remaining | Latest action Next follow-up date | Dispute or missing information
A reminder should name the invoice and remaining amount, attach or link the correct document and ask about a specific issue. Check for a payment or credit before sending it. Do not send an automated “overdue” demand for a bill already settled.
For partial payments, use a payment record linked to the invoice. The Talentra generator prepares the document, while your own register tracks the deadline and receipts. Agreement, document and record should all describe the same obligation.
Published by Talentra Solutions. Revised 19 October 2026 with a practical workflow and clearer limits. Examples are fictional. Report a correction.