Past-due invoices are one of the most frustrating parts of running a business. You deliver the work, send the invoice, and then the due date comes and goes without payment. Charging a late fee can help, but it's not as simple as tacking one onto an invoice after the fact.

There's no single approach that works for every business, but late fees are worth considering if you want to give clients a real incentive to pay on time. And during this process, there are specific legal and professional boundaries important to know.

Below, we'll look at what counts as a reasonable late fee in Canada and how to handle overdue invoices and unpaid balances.

Table of Contents

• What is a reasonable late fee for invoices in Canada?
• How to deal with late payments before charging late fees
• How to avoid late payments in the first place
• How do you charge late payment fees?
• Manage your payment setup with Intuit QuickBooks
• Frequently asked questions

What's a reasonable late fee in Canada?

There's no single legal rate, but Canadian businesses generally use one of two approaches:

• Percentage-based fees work well for larger invoices, since the fee scales with the amount owed. One common approach is charging between 1.5% and 4% per month on the overdue balance.
• Flat fees make more sense for smaller invoices, where a percentage wouldn't add up to much. A flat fee in the $25-$50 range is common, and it's simpler for both you and the client to understand.

Whatever approach you choose, remember that the goal is to encourage timely payment without damaging the client relationship.

Let's say your payment terms state that overdue invoices incur a 1.5% monthly late fee. If a client doesn't pay a $5,000 invoice within 30 days of the due date, you might charge a $75 late fee ($5,000 × 1.5%), bringing the total amount due to $5,075.

How to prevent late payments

The best late fee is the one you never have to charge. A few upfront habits go a long way toward keeping invoices from becoming overdue in the first place:

• Automate your invoicing and reminders: Set them to go out before the due date, not just after. A quick nudge a few days ahead often prevents a payment from becoming late in the first place.
• Offer early payment discounts: A small discount (e.g., 2% off if paid within 10 days) gives clients a reason to pay early rather than waiting until the due date.
• Keep track of outstanding invoices: Knowing exactly what's owed and by whom lets you follow up before things slip through the cracks.
• Expand your payment options: The more friction-free it is to pay an invoice (e-Transfer, credit card, online payment links), the fewer excuses clients have for delaying payment.
• Use Intuit Intelligence: Finance AI and other QuickBooks AI tools identify invoices at risk of becoming overdue, so you can follow up proactively instead of reactively.

How to deal with late payments before charging late fees

A late fee should be your last resort. Reaching out directly is often more effective (and far less likely to damage the relationship) than jumping straight to a penalty.

Before you apply a late fee, here are a few approaches worth trying first:

Most late payments result from a missed email, a cash-flow crunch, or a simple oversight on the client's end. A quick, professional ask can resolve the issue faster than a fee ever would, and it keeps the door open for future work with that client.

If none of these get you paid and the payment terms you agreed to include an overdue payment charge, that's when it's time to apply a late fee.

How do you charge late payment fees?

Charging a late payment fee is legal in Canada, but it's only enforceable if your client agreed to the terms before the service was provided. You generally cannot add a fee to an invoice after the service if it wasn't part of your original agreement.

Here's how to set it up properly:

1. Establish your terms early: Before sending your first invoice, define your payment terms (e.g., Net 30) and your late fee policy.
2. Secure client consent: Have the client sign off on these terms as part of your onboarding process.
3. Clearly disclose interest charges: Under the federal Interest Act, if you charge interest, you must state the annual percentage rate (APR) in your contract. If you list only a monthly percentage, a court may cap your interest at the legal default of 5% per annum.
4. Include it on every invoice: Your invoice acts as a recurring reminder. Clearly list your terms at the bottom of every document you send to ensure the client doesn't miss them.

• A simple line at the bottom of your invoice works well, something like:
• "A late fee of 1.5% per month (18% per annum) will be applied to any balance unpaid after the due date."

The clearer your terms are upfront, the easier it is to enforce them.

Manage your payment setup with Intuit QuickBooks

Knowing how to plan for and handle late payments helps you keep your business finances on track. Besides, clear terms, an easy way to pay, and visibility into what's outstanding all reduce how often you need to think about late fees in the first place.

Invoicing software like QuickBooks Online allows you to create and send polished invoices. Try it today and spend less time chasing payments.