Choose clear invoice payment terms and reduce avoidable disputes over due dates, deposits and late follow-up.
Write an exact due date
A phrase such as "net 30" can be misunderstood. Show both the agreed term and the calendar due date. State whether the period begins from invoice date, delivery, acceptance or another event. The contract should control; the invoice should repeat the term rather than invent a new one.
Cover the practical details
Specify currency, accepted payment methods, bank charges, deposit treatment, milestone triggers and the contact for billing questions. Any late fee or interest provision should be agreed in the contract and reviewed for enforceability before it appears on invoices.
Build a reminder schedule
Confirm receipt soon after sending, remind the customer shortly before the due date and follow up promptly when overdue. Keep the tone factual and include the invoice number, amount and payment instructions in every message.
Use the Payment Reminder Generator
Frequently asked questions
Is due on receipt the same as immediate payment?
It communicates immediate payment, but the contract and practical processing time still matter.
Can I add a late fee after sending the invoice?
Do not assume so. Charges should be agreed and legally supportable before you rely on them.
Last reviewed 22 June 2026. This guide provides general information, not tax, legal or financial advice.
Reviewed for clarity and source accuracy by Toolnovax Editorial Team, business operations and automation specialists.