What is a suretyship?
Is a suretyship valid and enforceable in South Africa?
“‘No contract of suretyship entered into after the commencement of this Act, shall be valid, unless the terms thereof are embodied in a written document signed by or on behalf of the surety …’”
“What the section requires is that the “terms” of the contract of suretyship are to be embodied in a written document … the identity of the principal debtor is undoubtedly a material term of a contract of suretyship.”
When you need a Suretyship
- A bank, supplier or landlord asks the director, shareholder or owner of a company or close corporation to “sign surety” for the entity’s overdraft, trade account, loan or lease before extending credit.
- You are lending money, supplying goods on credit, or letting premises and want a second person to stand behind the debtor in case the debtor cannot pay.
- Selling or buying a business, restructuring debt, or signing an acknowledgement of debt where the creditor wants additional personal or third-party security for the obligation.
- A holding company, related entity or family member is asked to back another party’s financing as part of a group security package.
What a Suretyship should contain
Identity of the surety, creditor and principal debtor
All three parties must be clearly identified in the written deed itself — full names, identity or registration numbers and addresses. The identity of the principal debtor is a material term, and a deed that fails to identify it can be void (Industrial Development Corporation v Silver).
The principal obligation that is secured
Describe the underlying debt or obligation the surety stands behind — e.g. “all amounts owing under loan agreement X” or “all present and future indebtedness on the trade account”. The nature and cause of the principal debt should be ascertainable from the document.
In writing and signed by (or for) the surety
The statutory formality. The full terms must be embodied in a written document signed by the surety or a duly authorised agent. An unsigned suretyship, or material terms agreed only verbally, will not satisfy section 6.
Surety AND co-principal debtor
Most commercial deeds bind the surety “as surety and co-principal debtor”. This makes the surety jointly liable alongside the debtor, and combined with renunciation of benefits it lets the creditor sue the surety directly without first proceeding against the principal debtor.
Renunciation of benefits (excussion and division)
The surety renounces the benefit of excussion (beneficium ordinis seu excussionis — requiring the creditor to first exhaust the debtor’s assets) and, where there are multiple sureties, the benefit of division (beneficium divisionis — limiting each surety to a proportionate share). These benefits must be expressly and knowingly renounced.
Limitation of amount and duration
State whether the suretyship is limited to a maximum amount or capped period, or whether it covers all present and future debts without limit (an unlimited or “continuing” suretyship). An unlimited suretyship is enforceable but exposes the surety to far more than the original debt.
Certificate of indebtedness
Creditors often include a clause making a certificate signed by a manager prima facie (or, more controversially, conclusive) proof of the amount owing. These shift the evidential burden onto the surety and are read narrowly by the courts — scrutinise the wording.
Cancellation, variation and deletions
Set out how the surety may terminate liability for future debts (notice of cancellation), and how the suretyship may be varied. Any deletions or insertions to a standard form should be initialled to avoid disputes over the agreed terms at signature.
Suretyship vs guarantee vs indemnity in South African law
| Feature | Suretyship | Guarantee (strict sense) | Indemnity |
|---|---|---|---|
| Nature of liability | Accessory — depends on a valid principal debt | Usually primary and independent of the underlying debt | Primary — an undertaking to make good a loss |
| Triggered by | Principal debtor’s default on the secured debt | The agreed event or demand, on its own terms | The occurrence of the loss or event indemnified |
| Falls away if principal debt is void/paid | Yes — accessory liability is extinguished with it | Not necessarily — it can stand on its own | No — it is a self-standing obligation |
| Section 6 writing requirement | Yes — must be in writing and signed by the surety | No statutory writing formality (terms still matter) | No statutory writing formality |
| Surety/giver benefits | Excussion and division apply unless renounced | Generally no benefit of excussion | No benefit of excussion |
Common South African pitfalls
- Relying on a verbal or unsigned promise. If the suretyship is not in writing and signed by (or for) the surety, it is void under section 6 — a handshake or email confirmation is not enough.
- Signing an incomplete deed. If material terms — especially the identity of the principal debtor or creditor — are blank when the surety signs and are filled in later, the suretyship can be invalid and cannot be rescued by outside evidence (Industrial Development Corporation v Silver).
- Not appreciating an unlimited “continuing” suretyship. Many standard bank and supplier forms bind you for all present and future debts without a cap and as co-principal debtor with renunciation of benefits — meaning the creditor can sue you first, in full, for far more than the original amount.
- Spouses married in community of property signing without the other spouse’s consent. A surety given outside the ordinary course of business may require the written consent of the other spouse under the Matrimonial Property Act, and treating estate-binding surety as a casual signature is a frequent error.
- Forgetting that the suretyship is only as good (or bad) as the principal debt. Because liability is accessory, defences available to the principal debtor, prescription of the principal debt, and the way the underlying agreement is varied can all directly affect the surety’s exposure.
Frequently asked questions
Does a suretyship have to be in writing in South Africa?
Yes. Section 6 of the General Law Amendment Act 50 of 1956 requires that the terms of a suretyship be embodied in a written document signed by, or on behalf of, the surety. A verbal suretyship is not valid in South Africa, no matter how clearly it was agreed.
Is an unsigned suretyship valid?
No. If the surety (or someone authorised to act for the surety) has not signed the written deed, the suretyship is void for want of the statutory formality. Signature by the surety is essential — a creditor’s signature alone does not save it.
What is renunciation of benefits in a suretyship?
It means the surety gives up two common-law protections: the benefit of excussion (beneficium ordinis seu excussionis), which would force the creditor to exhaust the principal debtor’s assets first, and, where there are co-sureties, the benefit of division (beneficium divisionis), which would limit each surety to a proportionate share. Renouncing them lets the creditor pursue the surety directly and in full.
Can a surety cancel a suretyship?
A surety can usually terminate liability for future debts by giving notice in line with the deed, but cannot escape liability for obligations that already exist at the date of cancellation. A continuing suretyship runs until properly cancelled, so check the cancellation clause carefully.
What is the difference between a surety and a co-principal debtor?
A surety is liable for someone else’s debt on an accessory basis, while a principal debtor owes the debt in their own right. When you sign “as surety and co-principal debtor”, you remain a surety but accept the same direct, joint liability as the debtor — so the creditor can claim from you without first proceeding against the debtor.
Does the National Credit Act apply to suretyships?
A suretyship can be a “credit guarantee” under the National Credit Act 34 of 2005, but the Act applies to it only to the extent that the Act applies to the underlying credit agreement it secures. If the principal credit agreement is regulated by the NCA, the suretyship is affected; if the underlying agreement falls outside the NCA, so does the suretyship.
Can a spouse married in community of property sign surety?
They can, but a suretyship given outside the ordinary course of the spouse’s business or profession generally requires the written consent of the other spouse under the Matrimonial Property Act, because it binds the joint estate. Without the required consent the suretyship may be challenged, so the matrimonial regime should always be checked before signature.
Can a defective suretyship be fixed or rectified later?
Usually not. Where a material term required by section 6 is missing from the written deed, South African courts have held that the defect cannot be cured by rectification or outside evidence — the suretyship is simply invalid. This is why the deed must be complete and correct at the moment of signature.
Sources & authority
- General Law Amendment Act 50 of 1956, s 6 (writing requirement for suretyships)
- Industrial Development Corporation of SA (Pty) Ltd v Silver [2002] ZASCA 112; 2003 (1) SA 365 (SCA)
- Intercontinental Exports (Pty) Ltd v Fowles [1999] ZASCA 15; 1999 (2) SA 1045 (SCA)
This guide is general information, not legal advice. It reflects the law as at June 2026.