*Illustrative counting example only; confirm the actual deadline in your agreement.
Clear invoice payment terms help freelancers and small businesses avoid confusion. They tell a client when payment is expected and give both sides a shared deadline. The right term depends on your contract, the type of work, the client relationship, and any rules that apply to your transaction.
What does “Net” mean on an invoice?
“Net” followed by a number usually means the payment is due within that number of days. For example, Net 30 generally means payment is due 30 calendar days after the invoice date. However, agreements can define a different starting point, so write the terms clearly and follow your contract.
| Payment term | Usual meaning | Example for an invoice dated 1 October |
|---|---|---|
| Due on receipt | Payment is expected when the invoice is received | Due immediately |
| Net 7 | Due in 7 days | 8 October |
| Net 15 | Due in 15 days | 16 October |
| Net 30 | Due in 30 days | 31 October |
| Net 45 | Due in 45 days | 15 November |
| Net 60 | Due in 60 days | 30 November |
These dates illustrate simple calendar-day counting. The agreed contract, the year, time zone, holidays, and any special wording can affect how a real deadline is interpreted. Confirm the date in writing with your client.
Checklist before sending an invoice
- Confirm the agreed payment term in the proposal, purchase order, or contract.
- Check that the invoice date and calculated due date match the agreement.
- State the currency, amount due, payment method, and where to send payment.
- Check whether the agreement specifies calendar days, business days, or a weekend and holiday rule.
- Keep a copy of the invoice and the communication confirming the terms.
Use the free Invoice Due Date Calculator to estimate a deadline for a common or custom payment term. Free to use — no sign-up required.
How do you calculate an invoice due date?
Start with the date specified by your payment agreement, then add the number of days in the term. If an invoice dated 1 October has Net 15 terms, adding 15 calendar days gives 16 October. If the agreement says weekends or public holidays change the deadline, apply that rule too.
Which payment terms should freelancers choose?
- Due on receipt: May suit small jobs, deposits, or clients who agree to pay immediately.
- Net 7 or Net 15: Can help keep cash flowing when clients accept shorter terms.
- Net 30: A familiar option for many business clients, but it means waiting longer for cash.
- Milestone payments: For larger projects, consider agreed deposits and payments at defined milestones rather than waiting until the entire project is complete.
Do not choose a term only because it sounds standard. Consider your expenses, how long the work takes, the client's purchasing process, and how much unpaid work you can reasonably carry. Put the agreed terms in the proposal or contract before starting.
What should payment terms include?
Make your invoice easy to understand. Include the invoice date, invoice number, amount due, currency, accepted payment method, due date, and the agreed payment term. If a deposit, installment, late fee, or interest charge applies, explain it in the signed agreement and make sure it complies with applicable rules before relying on it.
For a consistent invoice, try the Free Invoice Generator. For project work, you can also estimate your price with the Freelance Project Quote Calculator.
What if a client pays late?
First, check that the invoice reached the right person and that the due date is correct. Send a polite reminder that includes the invoice number, amount, due date, and a copy of the invoice. If the payment remains overdue, follow the steps in your agreement and keep a record of communications. Avoid adding interest or fees unless your contract and applicable law permit them.
Frequently asked questions
Does Net 30 mean 30 business days?
Usually, Net 30 refers to calendar days, not business days. The agreement may define a different method, so check the wording and confirm the deadline.
Does the invoice date count as day one?
Counting conventions can vary with the agreement and local rules. This guide's examples add the stated number of days to the invoice date; confirm the due date in your contract or with the client.
Can I change Net 30 to Net 7?
You can propose different terms for future work, but agree on them with the client before invoicing. Do not assume you can change an existing agreed deadline unilaterally.
Should I charge late payment interest?
Only after checking the agreement and the laws that apply to the transaction. Rules differ by jurisdiction, and this article is general information, not legal advice.