Payment terms are one of the most overlooked parts of an invoice — yet they're often the reason payments arrive late. Here's how to write terms that are actually followed.
Be specific, not vague
'Payment due soon' or 'ASAP' leaves the deadline open to interpretation. Instead, write an exact date: 'Payment due by August 15, 2026.' Specificity removes any excuse for delay.
Choose a standard term structure
Common options include Due on Receipt, Net 7, Net 15, and Net 30 — meaning payment is due that many days after the invoice date. Choose terms that match your cash flow needs and communicate them upfront, ideally before work even begins.
State your accepted payment methods
List exactly how you accept payment: bank transfer, card, PayPal, or another method. Include account details or a payment link directly on the invoice so there's no extra step for the client.
Mention late fees, if you use them
If you charge a late fee for overdue invoices, state it clearly — for example, '2% late fee applied after 10 days past due.' Even if you rarely enforce it, its presence encourages timely payment.
Keep the tone professional, not apologetic
Avoid phrasing that sounds unsure, like 'Please pay whenever convenient.' Confident, clear terms are taken more seriously by clients and their accounting departments.
Put your terms in the same place every time
Consistency matters. Keep your payment terms in a predictable spot on every invoice — near the total or in a dedicated notes section — so returning clients know exactly where to look.