Overdue invoices

How to collect overdue invoices in South Africa without damaging relationships

A practical South African overdue-invoice process covering aging, reminders, disputes, promises, payment plans, prescription, and responsible escalation.

Zeroed Editorial TeamUpdated 28 July 20265 min readSource checked

Start with an accurate account

Before sending a reminder, check four facts:

  • the invoice was issued to the correct customer;
  • the goods or services were supplied;
  • the due date has passed;
  • the balance and payment reference are correct.

Many collection problems begin as allocation or communication problems. A payment may be sitting under the wrong reference. An invoice may have gone to a former employee. The customer may be waiting for a credit note that nobody assigned.

A clean first message is more effective than a forceful message built on the wrong balance.

Use one clear overdue-invoice process

Document the stages so staff do not improvise.

Stage 1: friendly reminder

Send soon after the due date. Assume oversight and provide the invoice number, amount, due date, and payment route. Give the customer a simple way to say that payment has already been made or that something is wrong.

Stage 2: confirm the next action

If there is no payment or reply, ask for a specific payment date. If the customer cannot pay in full, decide whether your policy permits a plan.

Do not record “will pay soon”. Record a date and amount.

Stage 3: firmer written notice

Restate the account and earlier contact. Explain the next operational step accurately. Do not threaten legal action that the business has not approved or cannot take.

Stage 4: review before escalation

Older balances, credit agreements, contested accounts, vulnerable customers, and prescribed-debt questions need a human review. Escalation can mean a manager call, formal demand, attorney, registered debt collector, or write-off decision. It is not one automatic destination.

Use the payment reminder templates as a starting structure, then adapt them to your contract and sector.

Keep the customer relationship intact

The practical difference between a reminder and harassment is often process quality.

Identify the business

The customer should know who is contacting them and which account is involved. Avoid vague sender names and unexplained links.

Make replies useful

Offer clear routes:

  • “I have paid”;
  • “I dispute this”;
  • “I need a statement”;
  • “I need a payment arrangement”; or
  • “Use another contact channel”.

Each route should create an internal task or status.

Stop when the context changes

Pause reminders when:

  • payment is recorded;
  • a material dispute is open;
  • a valid payment plan is active;
  • the contact has opted out of that channel where applicable;
  • the account has been handed to another process; or
  • a staff member places a compliance hold.

Sending while ignoring a reply is a fast way to damage trust.

Handle disputes separately

A dispute is not a failed reminder. It is a different workflow.

Record:

  1. what the customer disputes;
  2. the amount affected;
  3. supporting documents requested;
  4. the staff owner;
  5. the next update date; and
  6. whether the undisputed balance remains payable.

Tell the customer when they can expect a response. If you need more information, ask for it once and precisely.

Use payment plans deliberately

A plan can recover an amount that a customer cannot settle immediately, but only if it is realistic and monitored.

A usable plan records:

  • the total balance;
  • instalment amount and frequency;
  • first payment date;
  • payment method and reference;
  • what happens when a payment is missed; and
  • who may change the arrangement.

Do not offer terms the business cannot administer. A plan without reminders, allocation, and missed-payment handling becomes another spreadsheet.

Know when ordinary follow-up becomes legally sensitive

Prescription

The Prescription Act says a debt is extinguished after the applicable prescription period. The Act contains several periods and rules affecting when time begins, is delayed, or is interrupted. The commonly discussed three-year period is not a universal answer for every debt.

Do not attempt to solve prescription with a message template. Flag old accounts and obtain appropriate advice before making representations about legal liability.

Credit agreements

Where the National Credit Act applies, sections 129 and 130 set procedures before debt enforcement. National Credit Regulator material explains that a credit provider must notify a consumer in default and draw attention to available remedies before court enforcement.

A routine reminder is not automatically a compliant section 129 notice. Keep the two processes distinct.

External collection

If you hand an account to a third-party debt collector, verify registration and understand fees, customer communication, reporting, and how payments will be handled. Read the first-party versus debt collector guide.

Measure outcomes that improve the process

Useful measures include:

  • percentage of overdue accounts with a next action;
  • time from due date to first reminder;
  • reply and dispute rates;
  • promises made and promises kept;
  • payment-plan adherence;
  • payments correctly allocated;
  • opt-outs and complaints; and
  • staff time spent on routine follow-up.

Message volume alone is not success. A good process reduces uncertainty and gives both sides a clear next step.

A weekly operating rhythm

Monday: reconcile payments and refresh the overdue list.

Daily: review replies, disputes, failed deliveries, and promises due.

Wednesday: inspect accounts with no contact path or no next action.

Friday: review broken promises, plan performance, and accounts approaching escalation criteria.

The rhythm can be automated, but responsibility should remain visible.

How Zeroed supports the process

Zeroed helps South African businesses work their own overdue accounts in their own name. It schedules reminders, records communication, tracks promises and plans, and provides payment routes while customer money continues to go directly to the business.

It does not replace legal advice, make enforcement decisions, or guarantee payment.

Common questions

Frequently asked questions

When should a business follow up on an overdue invoice?

Follow up soon after the due date once you have confirmed the invoice, balance, contact details, and payment allocation are correct. Early factual reminders are usually easier than delayed escalation.

Should reminders stop when a customer disputes an invoice?

Normal automated reminders should pause while a material dispute is checked. Record the dispute, assign an owner, and tell the customer what information or next step is required.

Do all South African debts prescribe after three years?

No. The Prescription Act contains different periods and rules about when prescription starts, is delayed, or is interrupted. Obtain advice on old or contested debt rather than relying on a generic rule.

Evidence

Sources

  1. Prescription Act 68 of 1969 South African Government. Accessed 28 July 2026.
  2. National Credit Act 34 of 2005 National Credit Regulator. Accessed 28 July 2026.
  3. Take control of your finances National Credit Regulator. Accessed 28 July 2026.

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