Client Won't Pay: How to Follow Up Without Losing the Client

The problem: following up without being "that guy"

You did the work, sent the invoice, and... nothing. A week goes by, then two. Following up with a client often feels awkward: you don't want to seem rude or risk losing a regular client over a few hundred dollars that's late.

But an unpaid balance isn't just a number sitting there: it's work you already did, at your own expense. The longer you wait to follow up, the lower your odds of getting paid quickly. The good news: a well-handled follow-up is rarely seen as aggressive, it's normal business practice, as long as the tone is professional and escalates gradually.

The 3-step follow-up sequence

Step 1: The friendly reminder (3 to 5 days after the due date)

Keep the tone neutral, almost informational. The client may have simply forgotten.

Subject: Quick reminder — Invoice #2026-0089

Hi First name,

Hope things are going well on your end. Just a quick reminder about invoice #2026-0089 for amount, which was due on date.

If you've already sent payment, please disregard this — thank you! Otherwise, feel free to reach out if you have any questions.

Thanks, Your name

L'app du travailleur tip: no need to write this email by hand, just resend the invoice from its detail page and change the subject line to "Reminder." The client gets the same PDF, with an email clearly flagged as a follow-up rather than a first send.

Step 2: The firm follow-up (10 to 15 days after the due date)

The tone stays courteous, but more direct. Name the delay clearly and ask for a specific date.

Subject: Invoice #2026-0089 — still awaiting payment

Hi First name,

Invoice #2026-0089 (amount) is now X days overdue. Can you confirm a payment date this week?

If something's holding up payment, let me know — we can certainly work something out.

Your name

L'app du travailleur tip: at this stage, send the app's built-in late-payment email instead. The attached invoice automatically shows a clear red banner marking the payment as overdue and missing, so the client understands the severity as soon as they open it, without you needing to push harder in the text.

Step 3: The formal notice (30+ days)

Here, you're documenting. This email can serve as evidence if things escalate to formal notice.

Subject: Notice of overdue payment — Invoice #2026-0089

Hi First name,

Despite my follow-ups on dates, invoice #2026-0089 (amount, due date) remains unpaid.

Please settle this payment by date, typically +7 days. After that, I'll have no choice but to apply late interest and begin collection proceedings.

Your name

Even simpler: automate the whole thing

Resending the invoice with "Reminder" in the subject, then watching the calendar to send the red-banner email at the right moment, is already better than writing everything by hand, but it's still one more thing to remember. That's why the Pro plan includes automatic follow-ups: turn them on in Settings → Emails, and the app sends the reminder, then the overdue notice (red banner included), automatically once an invoice passes your default payment window (30 days by default, adjustable to your terms).

You no longer have to remember who owes you what or watch due dates yourself, and the tone stays professional on every send, even during your busiest weeks.

What Quebec law says

A few useful reference points if a client is genuinely dragging their feet:

• Spell out your payment terms on the invoice. The Civil Code of Québec doesn't impose a default payment term between businesses, your contract (or your invoice, if there's no written contract) sets the due date. Always state the term clearly ("Payable within 30 days") to avoid any ambiguity.
• You can charge late interest, provided it's stated on your invoice or contract (e.g., "1.5% per month on overdue balances"). Without an explicit mention, the legal interest rate set by regulation applies, check the rate in effect at the time of the transaction.
• Formal notice (mise en demeure) is the formal step before legal action: a written notice giving the client a reasonable deadline (often 10 days) to pay before you start proceedings. Your Step 3 email can serve this purpose if it's clear enough, but a registered letter carries more weight.
• The Small Claims Division of the Court of Québec lets you claim an unpaid amount without a lawyer, for claims under the applicable threshold ($15,000 as of 2025), useful for invoices of a few thousand dollars once all follow-ups have failed.

For more complex cases or larger amounts, consult a professional: these general guidelines don't replace legal advice tailored to your situation.

Quick recap

• Follow up early: the first friendly reminder, 3 to 5 days after the due date, often does the job on its own.
• Keep a written record of every follow-up: it can serve as evidence later.
• Always state a clear payment term on your invoices.
• Automate what you can: a reminder sent consistently beats a perfect one sent three weeks too late.