What To Say When Chasing Unpaid Invoices (Email & SMS Templates)

The Invoice Is Overdue And Nothing's Happening

Payment was due last week. Maybe two weeks ago.

The accounting software sent the automated reminder. Maybe two. Maybe three.

Still nothing.

Now what?

Most accounting systems handle the polite reminders automatically. Xero, MYOB, QuickBooks - they all send messages at 7, 14, 21, and 30 days overdue.

But automated reminders only work on clients who were planning to pay anyway.

For everyone else, you need something different.

Here's what to send when the automated reminders fail.

If You're Not Using Accounting Software

Some businesses still do this manually. That's fine.

The timing works the same way: 7, 14, 21, and 30 days after the due date.

Set calendar reminders. Send the messages. Track responses in a spreadsheet.

The templates below work whether your system is automated or manual.

The Five-Stage Escalation

Professional debt recovery uses escalation. Each message gets progressively firmer. Each one gives the client another chance to respond.

Here are the five stages, in order. Allow about 7 days between each one.

01

The Polite Reminder

7 Days Overdue

This is usually automated. Most accounting software handles this.

If you're doing it manually, here's what to send.

Email Template
Subject: Payment reminder – Invoice #[NUMBER]
Hi [Name], Reminder: Invoice #[NUMBER] for $[AMOUNT] due on [DATE] is overdue. Payment can be made via [PAYMENT METHODS]. If this has already been paid, please disregard this message. Questions? Contact[CONTACT]. Kind regards, [Business Name]
SMS Template
OVERDUE: Invoice #[NUMBER] ($[AMOUNT]). Payment details: [LINK or BANK DETAILS]. Questions? Contact [NUMBER].
Why This Works

Neutral. Professional. Assumes the best. Most legitimate oversights get resolved here.

02

The Formal Follow-Up

14 Days Overdue

This is often automated too. Check your accounting software settings.

If the automated reminder hasn't worked, this message goes firmer.

Email Template
Subject: 14 days overdue - Invoice #[NUMBER]
[Name], Invoice #[NUMBER] for $[AMOUNT] is 14 days overdue (due date: [DATE]). Payment is expected within the next 3 business days. If payment has been made, please forward confirmation to [EMAIL]. If there are any issues with this invoice, contact [CONTACT] to discuss. Regards, [Business Name] Accounts Receivable
SMS Template
Invoice #[NUMBER] 14 days overdue. Payment required in 3 business days. Contact [NUMBER] if any issues.
Why This Works

States the problem. Sets a clear timeframe. Opens the door for genuine issues. The "Accounts Receivable" signature keeps it professional, not personal.

03

The Firm Notice

21 Days Overdue

Automated reminders have failed. Two manual messages sent. No response.

Time to make the consequences clear.

Email Template
Subject: URGENT: Payment required – Invoice #[NUMBER]
[Name], 21 days overdue: Invoice #[NUMBER] for $[AMOUNT]. **Payment received by 5pm on [DATE] avoids escalation to formal debt recovery proceedings.** Facing financial difficulty? Contact [CONTACT] before [DATE] to discuss payment arrangements. Failure to respond or arrange payment will result in this matter being escalated. [Business Name] Accounts Receivable
SMS Template
URGENT: 21 days overdue. Invoice #[NUMBER]. Payment received by 5pm on [DATE] avoids escalation to formal debt recovery. Contact [NUMBER] to arrange a payment plan.
Why This Works

Direct. Clear deadline. Specific consequence. Offers a payment plan option (reasonable) but makes escalation explicit. Clients showing patterns from the 5 Signs Your Clients Are Taking Advantage article often respond at this stage. The word "escalation" signals boundaries.

04

The Final Demand

28 Days Overdue

Three messages sent. Four weeks overdue. Multiple opportunities to respond.

This is the last communication before action.

Email Template
Subject: FINAL DEMAND: Invoice #[NUMBER] – Immediate action required
[Name], **FINAL DEMAND: 28 days overdue - Invoice #[NUMBER] ($[AMOUNT]).** Payment pending despite multiple reminders sent. No response received. **Full payment to be received by 5pm on [DATE] or matter is sent to external debt recovery.** Debt recovery means: - Recovery fees increase the amount owed - Credit reporting may be affected - Legal proceedings may be commenced **Contact [CONTACT] before [DATE] to discuss options.** If no communication is received by this date, escalation begins and all communication is handled by third-party recovery services. [Business Name] Credit Control
SMS Template
FINAL DEMAND: 28 days overdue. Invoice #[NUMBER]. Payment by 5pm [DATE] or external debt recovery starts. Additional fees will apply. Contact [NUMBER] to discuss options.
Why This Works

No negotiation. Clear deadline. Explicit consequences. The "Credit Control" signature signals this has moved beyond accounts receivable. Reality check: At this stage, decide whether this debt is worth pursuing. The guide on when to write off bad debt covers that decision framework.

05

The Referral Notice

30+ Days Overdue

Payment deadline passed. No response. Decision made to pursue recovery.

This message is notification, not negotiation.

Email Template
Subject: Debt recovery started – Invoice #[NUMBER]
[Name], Invoice #[NUMBER] for $[AMOUNT] has been referred to [DEBT RECOVERY SERVICE] for collection as of [DATE]. All future correspondence regarding this debt should be directed to: [RECOVERY SERVICE CONTACT DETAILS] Their team will contact you within 48 hours regarding payment arrangements and additional recovery fees. [Business Name] Credit Control
SMS Template
Invoice #[NUMBER] referred to [RECOVERY SERVICE] for collection. All future contact via [PHONE]. Additional fees nowapply.
Why This Works

Factual. Brief. Professional. The matter is closed from your end. Critical: Only send this after actually referring the debt. Empty threats destroy credibility.

Automated vs Manual: What You Need To Know

If your accounting software handles reminders:

If you're doing this manually:

Either way, the principle is the same: systematic escalation with increasing firmness.

When Clients Respond With Excuses

Common responses and how to handle them professionally.

"This should have been paid already."
"Please confirm with accounts when payment was processed and forward the transaction reference. If not yet processed, payment is required by [DATE]."
"Cash flow issues this month."
"Payment arrangements can be discussed. Please contact [CONTACT] by [DATE] to confirm a payment schedule. A formal payment plan must be agreed in writing."
"There was a problem with the work."
"This is the first notification of any issue. Please provide specific details via email to [EMAIL] by [DATE] so this can be resolved. Outstanding payment remains due until a formal dispute is raised."
"Payment will be made next week."
"Please confirm the specific payment date and amount in writing. Payment must be received by [DATE] to avoid further action."

Vague promises get documented, not accepted.

For identifying genuine issues versus avoidance tactics, see the 5 Signs Your Clients Are Taking Advantage guide.

The Professional Distance Rule

Notice the templates avoid "I" and "you" language where possible.

Not: "I sent you three reminders"
Instead: "Multiple reminders have been sent"

Not: "You need to pay me"
Instead: "Payment is required"

Not: "I can't continue to be ignored"
Instead: "This matter requires immediate attention"

This isn't about being cold. It's about staying in control.

Debt recovery is a business process, not a personal relationship. The language should reflect that.

SMS vs Email: When To Use Which

Use email for:

Use SMS for:

Use both for:

SMS has higher open rates than email. Use it strategically.

What Most Businesses Get Wrong

=> MISTAKE 1: Sending one polite reminder then immediately escalating to debt collectors.

Expensive. Relationship-destroying. Usually unnecessary.

=> MISTAKE 2: Sending endless polite reminders without ever escalating.

Teaches clients that payment terms are optional. Normalises late payment.

=> The correct approach: Systematic escalation with clear stages and increasing firmness.

Most debts resolve at Stage 2 or 3 when the process is consistent. The ones that don't? Those need professional intervention.

Or Hand The Entire Process Over

Here's what handling this internally looks like:

Stage 1: Automated or manual reminder sent. Wait 7 days.
Stage 2: Follow-up sent. Track response. Wait 7 days.
Stage 3: Firm notice sent. Handle excuses. Wait 7 days.
Stage 4: Final demand sent. Document everything. Wait 3 days.
Stage 5: Decide whether to refer or write off. If referring, find recovery service, negotiate fees, transfer information, monitor progress.

That's 4-5 weeks of tracking, following up, documenting, and managing.

Alternative: Refer the debt after Stage 2 fails. The entire escalation process runs automatically. Responses get handled professionally. Most clients pay before Stage 4. The few that don't go to formal recovery without further involvement.

Get The Templates

Get the tried-and-tested templates. Update your accounting reminders or send them directly to clients.

Send Me The Templates

Then focus on running the business instead of managing debt collection.

Final Word

Chasing overdue payments is a business process, not a personal conflict.

These templates provide the exact structure for professional escalation. Clear stages. Increasing firmness. Documented trail.

Use them internally if that makes sense for your operation.

Or refer the debt and let professionals handle the chase while you focus on clients who pay on time.

Either way, automated reminders only work on clients who were planning to pay anyway.

For everyone else, you need escalation.

Ready to get paid?

Book a call to stop chasing and start getting paid.

Book A Free Consultation