A customer who has ignored invoices for nearly three years may still owe your business money, but that does not mean the debt remains legally enforceable. Claim prescription periods can turn a commercially valid claim into one a debtor may successfully resist if the deadline is allowed to pass. For directors and business owners, prescription is therefore not an administrative detail. It is a cash-flow, governance and dispute-management issue.
1. What prescription means in a commercial dispute
Prescription is the legal process through which a debt becomes unenforceable after a prescribed period. In practical terms, a debtor may raise prescription as a defence when a creditor waits too long to enforce a claim.
The word “debt” has a broad meaning in this context. It can include an unpaid invoice, a claim for contractual damages after a supplier misses a delivery date, a repayment obligation, or a claim arising from negligent conduct. A business should not assume that a claim is safe simply because its accounting system still shows the amount as outstanding.
Under the South African Prescription Act, the general period for most ordinary commercial debts is three years. That is often the starting point for claims arising from goods sold, services supplied, loans between private parties and contractual damages. However, the correct period depends on the nature of the debt, the contract and any legislation applying to the transaction.
Certain debts have longer periods. A judgment debt, a debt secured by a mortgage bond and certain tax-related obligations may prescribe after 30 years. Some debts owed to the State and claims based on bills of exchange or notarial contracts have different periods. The practical lesson is straightforward: use the three-year period as an early warning, not as a substitute for checking the legal position.
2. When does the prescription clock start?
The central question is not when the relationship became difficult. It is when the debt became due.
If a customer was required to pay within 30 days of invoice, prescription will usually begin when payment became due, not when your finance manager sends a final reminder. If a contractor’s defective work only becomes apparent later, the position may depend on when the claim arose and when the creditor knew, or could reasonably have acquired knowledge, of the relevant facts and the debtor’s identity.
This distinction matters in recurring trading relationships. A customer may owe six monthly invoices. Each invoice can have its own due date and its own prescription calculation. Treating the account as one undifferentiated debt can cause a business to lose its oldest claims while it continues negotiating over the newer ones.
Knowledge is relevant, but it is not a reason to delay
The law recognises that a creditor cannot enforce a claim without sufficient knowledge of the material facts and the debtor’s identity. Yet a business is expected to exercise reasonable care. A director cannot simply say, years later, that the company had not investigated a suspected breach.
Preserve the contract, purchase orders, invoices, delivery records, correspondence and meeting notes as soon as a dispute appears. These documents help establish not only the merits of the claim but also the date on which it became due and what the business knew at the time.
3. Do not confuse collection activity with legal interruption
A common and costly mistake is to assume that a letter of demand stops prescription. It usually does not.
Calls, emails, statements of account and increasingly firm correspondence may be commercially sensible, but they do not automatically interrupt prescription. Nor should a creditor rely on internal escalation, a complaint lodged with a supplier, or informal settlement discussions to preserve a deadline.
Prescription can be interrupted in two principal ways. The first is a clear acknowledgement of liability by the debtor. The second is the proper service of legal process in which the creditor claims payment. Both routes require care.
An acknowledgement may be express, such as a written admission that the amount is owed, or it may arise from conduct, such as an agreed payment arrangement. A partial payment can be highly significant. But do not infer an acknowledgement too readily from vague language such as “we are looking into the account” or “we dispute some charges”. The wording, context and authority of the person making the statement matter.
Legal process is also not a box-ticking exercise. A claim must be properly formulated and served. If proceedings are not pursued to a successful conclusion, are abandoned, or fail for procedural reasons, the intended interruption may not provide the protection the creditor expected. Where a contract requires arbitration, or the parties are considering mediation, obtain advice early on whether the chosen process protects the prescription position.
4. Control settlement discussions without sacrificing the claim
Commercial disputes are often best resolved without court proceedings. A late-paying customer may be strategically important. A supplier may be needed to complete an urgent project. Shareholders may need a workable relationship after a disagreement. Negotiation and mediation can preserve value that litigation would destroy.
But settlement discussions need a deadline strategy. Before entering extended negotiations, identify the earliest possible prescription date, nominate a responsible decision-maker and set diary reminders well before the deadline. Do not allow courteous correspondence to become an excuse for inactivity.
Where appropriate, ask for a written acknowledgement of debt or a properly drafted payment arrangement. It should identify the parties, the amount, the payment dates, any interest, the consequences of default and the effect of the arrangement on existing rights. An informal promise to “pay when cash flow improves” may be commercially encouraging but legally inadequate.
Control communication as well. Staff should not make concessions on liability, waive rights or agree to open-ended extensions without authority. A single unconsidered email can complicate both the merits and the settlement position.
5. Build prescription control into ordinary credit management
The strongest response to prescription is not last-minute litigation. It is a disciplined claims process that begins when a payment is missed.
Start with a live debtor register showing the contract or order reference, invoice date, due date, disputed amount, contact history, security held, acknowledgement status and the next escalation step. For substantial accounts, record the earliest possible prescription date rather than waiting to calculate it when the relationship has already deteriorated.
A practical internal process usually has four stages:
- identify overdue debts and potential damages claims promptly;
- check the contract for notice, dispute-resolution and jurisdiction clauses;
- preserve documents and obtain a clear factual account from the operational team; and
- decide whether to negotiate, seek an acknowledgement, commence the agreed dispute process or issue legal proceedings.
This process should apply beyond customer debt. A business may have a claim against a supplier for delay penalties, defective performance or lost production. It may have rights against a former director, shareholder or contractor. Each claim should be assessed separately, with its own due date and evidence file.
6. Directors should treat prescription as a governance issue
A claim that prescribes can create questions beyond the lost recovery itself. If the claim was material, directors may need to explain why it was not identified, escalated or enforced in time. Poor records, unclear authority and weak credit controls can turn a manageable debtor problem into a governance failure.
Assign ownership. Finance may monitor payment dates, but the commercial team may hold the evidence needed to prove delivery, variations or acceptance. Management must decide whether preserving the customer relationship justifies a negotiated extension, and legal advisers must be engaged early enough to protect the claim if negotiations fail.
The right approach is proportionate. It may not make commercial sense to litigate every small invoice. It does make sense to know which claims are approaching prescription, what they are worth, and whether a written acknowledgement or targeted legal step can preserve options at reasonable cost.
7. Act before the dispute becomes urgent
When a claim is approaching prescription, do not begin by sending a more aggressive letter. Check the contract, calculate the earliest defensible deadline, preserve the documents and establish whether the debtor has acknowledged liability. Then choose the process that fits the commercial objective.
A timely, well-managed intervention can protect cash flow while leaving room for settlement. Waiting until the final weeks usually achieves the opposite: it narrows options, increases cost and gives the debtor control of the timetable. Treat prescription dates as decision deadlines, and your business will negotiate from a far stronger position.
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