When structuring a financing arrangement in South Africa, one of the most fundamental decisions is which type of security instrument to use. The two most common forms of real security are notarial bonds and mortgage bonds, each designed for a distinct category of property and governed by different legislation.
This guide provides a comprehensive comparison of these two instruments to help borrowers, lenders, and legal practitioners determine the most appropriate security for their needs. For a detailed overview of notarial bonds specifically, see our complete guide to notarial bonds in South Africa.
Key Differences Overview
At their core, the distinction between notarial bonds and mortgage bonds rests on a single principle: the type of property being offered as security. South African law draws a clear line between movable and immovable property, and each category has its own security mechanism.
Notarial Bond
A notarial bond creates security over movable property. This includes vehicles, equipment, machinery, inventory, shares, intellectual property, and other assets that can be physically moved or are not permanently affixed to land.
- A special notarial bond is governed by the Security by Means of Movable Property Act 57 of 1993; a general notarial bond rests on the common law and the Deeds Registries Act 47 of 1937 (with its insolvency preference under section 102 of the Insolvency Act 24 of 1936). Registration of every notarial bond is under the Deeds Registries Act.
- Must be attested by a notary public
- Available as general (all movables) or special (corporeal movables specified and described so as to be readily recognisable from the bond itself — the Ikea test)
- Debtor retains possession and use of the assets
Mortgage Bond
A mortgage bond creates security over immovable property. This includes land, buildings, sectional title units, and any permanent structures or improvements affixed to the land.
- Governed by the Deeds Registries Act 47 of 1937
- Prepared and registered by a conveyancer
- Ranked as first, second, or third mortgage bond
- Always creates a real right of security
Detailed Comparison Table
The following table provides a side-by-side comparison of the key features, requirements, and practical considerations of notarial bonds and mortgage bonds under South African law.
| Feature | Notarial Bond | Mortgage Bond |
|---|---|---|
| Property Type | Movable property (vehicles, equipment, shares, IP) | Immovable property (land, buildings, sectional title) |
| Legislation | Deeds Registries Act 47 of 1937 (registration); Security by Means of Movable Property Act 57 of 1993 (special bonds only); Insolvency Act 24 of 1936 s 102 (general-bond insolvency preference) | Deeds Registries Act 47 of 1937 |
| Who Drafts It | Notary public | Conveyancer |
| Where Registered | Deeds Office (where debtor resides or operates) | Deeds Office (where property is situated) |
| Types | General and special | First, second, third (ranked by priority) |
| Security Right | Personal right (general) / Real right (special). A general bond gives no real right on registration — only a personal right plus a free-residue preference in insolvency — and becomes a real right (pledge) only once perfected by taking possession under a court order. | Real right |
| Typical Use | Equipment financing, SME lending, asset-backed loans | Property purchase, home loans, development finance |
| Registration Time | 2-4 weeks | 8-12 weeks |
| Prescription | 30 years (special notarial bond) | 30 years |
Note: Registration times are indicative and may vary depending on the complexity of the transaction, the Deeds Office workload, and whether all documentation is in order.
When to Choose a Notarial Bond
A notarial bond is the appropriate security instrument in several common commercial scenarios. Its flexibility makes it attractive for businesses that need to secure financing against movable assets.
Ideal Scenarios for a Notarial Bond
- ✓No immovable property available: The borrower does not own land or buildings to offer as mortgage security, but has valuable movable assets
- ✓Equipment or vehicle financing: Specific machinery, fleet vehicles, or specialised equipment can be bonded under a special notarial bond, giving the lender a real right
- ✓SME and business financing: Small and medium enterprises often hold significant value in movable assets such as stock, debtors' books, and equipment rather than immovable property
- ✓Speed is important: With a registration timeline of 2-4 weeks versus 8-12 weeks for mortgage bonds, notarial bonds can provide faster access to financing
- ✓Combined security packages: A notarial bond can supplement a mortgage bond or other security instruments as part of a comprehensive security package
- ✓Simpler requirements: When the transaction does not call for the additional steps of mortgage bond registration, transfer duties, and property valuations
Practical Tip
When opting for a notarial bond, choose a special notarial bond wherever possible. It provides a real right of security and ranks the creditor as a secured creditor in insolvency proceedings. A general notarial bond, while simpler, gives only a personal right and a preference over the free residue — it becomes secured only if and when it is perfected by taking possession under a court order.
How a General Notarial Bond is Enforced
A general notarial bond confers no real right until it is perfected. To perfect it on default, the bondholder applies to the High Court for a perfection order authorising it to take possession of the movables; self-help seizure is not permitted. See Spar Group Ltd v Durbanville Investments (Pty) Ltd t/a Buccleuch Kwikspar & Tops [2026] ZAGPJHC 529 paras [1], [17] and [26], and Contract Forwarding (Pty) Ltd v Chesterfin (Pty) Ltd 2003 (2) SA 253 (SCA) para [8].
When to Choose a Mortgage Bond
A mortgage bond remains the gold standard of security in South African lending. Immovable property typically appreciates in value over time, making it preferred security for lenders in most property-related transactions.
When a Mortgage Bond is the Right Choice
Property Purchase Financing
- •Home loans and residential property purchases
- •Commercial property acquisitions
- •Agricultural land purchases
- •Sectional title and share block transactions
Maximum Security Required
- •Large loan amounts requiring substantial security
- •Long-term financing (20-30 year terms)
- •Property development finance
- •Refinancing existing property debt
Key Advantage: Mortgage bonds always create a real right of security, regardless of ranking. Even a second or third mortgage bond provides the creditor with secured creditor status in insolvency proceedings. Immovable property also tends to be more stable in value than movable assets, which may depreciate.
Can You Use Both Together?
Yes. In commercial lending, it is common and often advisable for lenders to require multiple forms of security. A borrower may grant both a mortgage bond over immovable property and a notarial bond over movable assets as part of a single financing arrangement.
Common Combined Security Structures
Commercial Property Development
- →First mortgage bond over the development property
- →Special notarial bond over construction equipment
- →Cession of rental income streams
- →Suretyship from directors or shareholders
Agricultural Financing
- →Mortgage bond over farmland
- →Special notarial bond over farming equipment and vehicles
- →General notarial bond over livestock and crops
- →Cession of insurance policies
Why Combine Securities?
A layered security structure reduces the lender's risk exposure and may result in more favourable financing terms for the borrower, including lower interest rates, higher loan-to-value ratios, and longer repayment periods. It also ensures that if one class of security proves insufficient upon default, the lender has recourse to other secured assets.
Other Security Instruments in South Africa
While notarial bonds and mortgage bonds are the most common forms of real security, South African law provides several additional instruments that may be used independently or in combination with bonds.
Pledge
A pledge requires the physical delivery of movable property to the creditor or a third party. Unlike a notarial bond, the debtor loses possession of the asset.
Common examples include pledging shares, documents of title, or valuable goods.
Cession in Security
A cession transfers incorporeal rights (such as claims against third parties, insurance proceeds, or rental income) to the creditor as security.
Commonly used for ceding book debts, insurance policies, or revenue streams.
Suretyship
A suretyship is a personal guarantee where a third party undertakes to pay the debtor's obligation if the debtor defaults. It does not create a real right but provides an additional source of recovery.
Directors and shareholders often provide suretyships for company debts.
Movable Property Detail
For a comprehensive overview of which movable assets can be covered by a notarial bond, including tangible and intangible property, see our detailed guide.
Read: Assets Covered by Notarial Bonds →Frequently Asked Questions
What is the main difference between a notarial bond and a mortgage bond?
The primary difference is the type of property each secures. A notarial bond provides security over movable property (vehicles, equipment, shares), while a mortgage bond provides security over immovable property (land and buildings). Both notarial bonds are registered under the Deeds Registries Act 47 of 1937, with a special notarial bond additionally regulated by the Security by Means of Movable Property Act 57 of 1993; a mortgage bond is governed by the Deeds Registries Act. They are also drafted by different professionals: a notarial bond is attested by a notary public, while a mortgage bond is prepared by a conveyancer.
Can I use both a notarial bond and a mortgage bond together?
Yes. In commercial lending, it is common for lenders to require both a mortgage bond over the borrower's immovable property and a notarial bond over movable assets. This layered approach provides comprehensive security coverage across all asset classes and may result in better financing terms.
How long does it take to register a notarial bond compared to a mortgage bond?
Notarial bond registration typically takes 2 to 4 weeks, while mortgage bond registration can take 8 to 12 weeks. The longer timeline for mortgage bonds is due to the additional steps involved in property transfers, municipal clearances, rates clearances, and the simultaneous lodgement requirements at the Deeds Office.
Who drafts a notarial bond versus a mortgage bond in South Africa?
A notarial bond must be attested by a notary public, who is a specially qualified attorney admitted to practise as a notary. A mortgage bond is prepared and registered by a conveyancer, an attorney with additional qualifications in property law and conveyancing. Some attorneys hold both qualifications, which can streamline transactions requiring both instruments.
Choosing the Right Security Instrument
The choice between a notarial bond and a mortgage bond is not a matter of which is better in the abstract, but which is appropriate for the assets available and the commercial objectives of the transaction. In many cases, the answer is to use both, supplemented by additional securities such as cessions and suretyships.
Professional legal guidance ensures that your security structure is comprehensive, enforceable, and aligned with your financing strategy. Whether you are a borrower seeking to unlock the value of your assets or a lender seeking to protect your exposure, the right combination of security instruments makes all the difference.
Speak to MJ Kotze Inc About the Right Security Instrument
Choosing between notarial bonds, mortgage bonds, and other security instruments requires expert legal guidance. Let us help you structure the right security package for your financing needs.