Do I Need Late Fees in My Terms?

Not required, but useful

No law forces you to charge late fees, and plenty of businesses get by without them. But here is the catch: because Australia gives you no automatic right to interest on overdue commercial invoices, the only way to have that right available at all is to write it into your terms of trade in advance. If you leave it out, you cannot later decide to charge a fee against a customer who never agreed to one — the door is simply closed. This is general information, not legal advice.

So the real question is not "must I have late fees?" but "do I want the option of charging them?" Framed that way, the answer is easier. For most businesses that extend any credit, keeping the option open costs nothing and can be genuinely useful when a customer drags out payment, so there is little reason to leave it out.

What the clause gives you

A late-fee clause does two distinct things for you. First, it creates an enforceable right to charge interest or an administration fee if and when you choose to use it — the legal basis is there waiting. Second, and often more valuable in day-to-day terms, it acts as a deterrent: a simple line stating that overdue amounts accrue interest nudges customers to pay on time, because nobody wants to pay more than they have to.

Crucially, having the clause does not commit you to invoicing every late payment. Many businesses treat it as a reserve power — mentioning it in reminders to focus the customer's attention, but only actually charging for repeat offenders or serious, drawn-out delays. That flexibility lets you keep goodwill with good customers while still holding a real lever over the ones who need it.

The clause has to come first

The right to charge only exists if the clause was agreed before the invoice was issued — timing is everything here. In practice that means including the clause in your terms of trade and getting the customer to sign or accept those terms at the very start of the relationship, ideally at the credit-application stage, rather than springing it on them after a payment has already gone overdue. A fee the customer first hears about on a reminder letter is not one they agreed to.

Because this is the single most common point where late-fee clauses fail, it is worth getting right. See can I charge a late payment fee for exactly what counts as a properly agreed right and how the different forms of agreement compare.

If you decide to skip them

You can certainly run a business without late fees, and it can be a reasonable choice — especially if your terms are short, your customers are reliable, and you would rather keep your paperwork simple. The trade-off is straightforward: you give up both the deterrent effect and the right to charge interest when someone does drag out payment, so you carry the cost of late payers yourself.

If a debt then goes badly overdue and you never had a fee clause in place, your real lever is recovery of the principal rather than penalties you cannot enforce. Rather than spending weeks chasing it, you can refer the debt to Merion on a commission-only basis and focus on the customers who do pay.