What is a Testamentary Trust in South Africa?

A testamentary trust in South Africa is a trust created by a clause in a valid will that comes into existence only on the death of the testator, at which point the nominated trustees must obtain written letters of authority from the Master of the High Court under the Trust Property Control Act 57 of 1988 before they may act. Unlike an inter vivos trust, it costs nothing to register with the Master — the deceased’s will serves as the trust document — and the trust is issued a number beginning with “MT” rather than “IT”. It is most often used to hold an inheritance for minor children, who cannot inherit capital directly, and for beneficiaries who cannot manage money themselves. Income retained in an ordinary trust is taxed at a flat 45%, but a testamentary trust that qualifies as a “special trust” — broadly, one for the deceased’s relatives whose youngest beneficiary is under 18 at the end of the tax year, or one for a beneficiary with a disability — is taxed instead on the far lower sliding scale that applies to individuals.

What a Testamentary Trust Actually Is

A testamentary trust is set up in terms of a person’s last will and testament and takes effect only after death; it is also called a will trust or a trust mortis causa. The will itself is the trust instrument — there is no separate trust deed lodged with the Master, although a draft deed is sometimes annexed to the will for extra certainty.

Because the trust lives inside the will, all the formalities of a valid will must be met — and if the will is invalid, the trust never comes into existence at all. This is the single biggest structural risk with a DIY will. A testamentary trust gives no asset protection during the testator’s lifetime — that is what an inter vivos trust is for.

The three parties to a testamentary trust are:

• The testator — the person who creates it by making the will.
• The trustees — nominated by the testator in the will, or appointed by the Master of the High Court where none are nominated.
• The beneficiaries — typically minor children or persons unable to manage their own finances.

Testamentary vs Inter Vivos: The Comparison That Matters

Feature	Testamentary trust	Inter vivos (living) trust
How it is created	A clause in a valid will	A contract between founder and trustees during the founder’s lifetime
When it starts	Only on the testator’s death	On registration, during the founder’s life
Founding document lodged	The deceased’s will	The trust deed (original or notarially certified copy)
Master’s registration fee	None	A registration fee is payable for a new trust
Trust number prefix	MT	IT
Which Master has jurisdiction	The Master where the deceased estate is registered	The Master where the greatest portion of trust assets is situated
Protects assets during your lifetime	No	Yes
Tax on retained income	45%, unless it qualifies as a special trust	Flat 45% on retained income

Once the deceased estate is finalised, the testamentary trust stands as a fully independent legal institution in its own right, not a continuing part of the will that created it — the court confirmed this characterisation in Hanekom v Voigt 2016 1 SA 416 (WCC).

Who Actually Needs One

Testamentary trusts are not just for the wealthy. The most common reasons a South African family sets one up are:

• Parents of minor children. A minor cannot inherit and manage capital directly, so the trust holds the inheritance until the age set in the will. This is the most common reason by a wide margin.
• Families with a beneficiary who cannot manage money. This includes elderly parents, spendthrift adult children, and beneficiaries with substance abuse difficulties.
• Beneficiaries with a disability, where the trust may also qualify for special trust tax treatment.
• Families holding an indivisible asset such as a holiday home or a farm, where the trust keeps management centralised instead of splitting ownership between heirs.
• Where a check on the guardian is wanted. A financially astute trustee is often appointed precisely so that someone independent oversees money intended for a child in the guardian’s care.
• Creditor protection if a beneficiary becomes insolvent, and multigenerational continuity on the basis that a trust does not die.

The Alternative Most Parents Do Not Know About: the Guardian’s Fund

If a minor inherits cash and there is no testamentary trust or other arrangement, the inheritance is generally paid into the Guardian’s Fund, administered by the Master of the High Court under the Administration of Estates Act 66 of 1965. The guardian must then apply to the Master for releases towards the child’s maintenance, education and welfare, and the balance is paid out when the child reaches majority.

The practical contrast matters: a trustee chosen by the parent, with powers set out in the parent’s own will, versus a state-administered fund with an application process for every withdrawal. The current Guardian’s Fund interest rate and any maintenance release limits change from time to time — confirm the position with the Master’s office before relying on either figure.

How a Testamentary Trust Comes Into Existence, Step by Step

The testator signs a valid will containing the trust clause, naming the trustees, the beneficiaries, the assets to be bequeathed to the trust, the administration terms, and how and when the trust ends. The following sequence then unfolds:

1. The testator dies and the deceased estate is reported to the Master. The executor administers the estate first — the trust cannot be funded before that process runs its course.
2. The nominated trustees apply to the Master of the High Court for letters of authority. Section 3(1)(a) of the Trust Property Control Act 57 of 1988 is the governing rule, and it is specific: for trust property administered under a testamentary writing, jurisdiction lies with the Master in whose office the will is registered and accepted. In practice that is the Master handling the deceased estate, but the legal trigger is acceptance of the will — not where the family lives, not where the trust’s assets end up, and not where the trustees live. Jurisdiction can only be moved to another Master by written application with the consenting Master’s agreement (section 3(1)(b)).
3. Each trustee must give the Master an address for service of notices and process, and must notify the Master by registered post within 14 days of any change of address (section 5).
4. They lodge the Master’s testamentary trust set: J401 application, J417 acceptance of trusteeship, J405 acceptance of auditor, J450 beneficiary declaration, the photo page of each trustee’s ID, and the JM21 memorandum. No fee is payable, and there is no separate trust deed to lodge — section 4(1) of the Act requires lodgement of the trust instrument “except where the Master is already in possession” of it, and since a will is a “trust instrument” under section 1, the Master already holds it. This is the statutory reason a testamentary trust costs nothing to register.
5. The trustees complete the JM21 memorandum, which is the document by which they ask the Master to exercise the section 6(3) discretion to dispense with security. It asks for the beneficiaries’ names and ages, the trustee’s relationship to them, the probable duration of the trust, the beneficiaries’ written views on whether security should be waived, the trustee’s profession and any previous trust administration experience, whether there will be an annual audit and by whom, which bank will hold the trust account, and what steps will be taken to keep accurate records. Where security is required, it is furnished on form J344, an undertaking binding the trustees jointly and severally up to a stated rand amount for any loss caused by their failure to perform properly.
6. The Master issues the letters of authority and the trust receives its number, beginning with MT. No trustee may act — open a bank account, invest, or distribute — without the Master’s written authority (section 6(1)).
7. Assets flow from the deceased estate into the trust once the estate is finalised. No transfer duty is payable on fixed property making that move.
8. The trustees register the trust with SARS, take on the beneficial ownership obligations set out below, and administer the assets until the trust terminates on the trigger set in the will.

Which Master’s Office Applies in Gauteng

A testamentary trust is not registered wherever the family happens to live or wherever the trust’s assets end up — jurisdiction lies with the Master in whose office the will itself is registered and accepted, which in practice is the office handling the deceased estate. That is a different rule from the one governing inter vivos trusts, where jurisdiction follows the greatest portion of the trust property, and the trustees’ own addresses are irrelevant to it. A local magistrate’s court has no role in appointing trustees or issuing letters of authority, even where a service point there was used to report the estate.

Gauteng has only two Master’s offices, and there are no satellite or suburban service points for trust work. Estates of people ordinarily resident in the northern Johannesburg suburbs, Linden and Randburg among them, are administered by the Master of the High Court in Johannesburg at 66 Marshall Street in the Hollard Building, while Tshwane matters, including Centurion and Pretoria East, go to the Pretoria Master, which moved to 351 Francis Baard Street in June 2026 from its long-standing SALU Building address. Both offices have accepted online trust registrations since April 2025, so lodgement no longer necessarily means a trip into the city. Trustees should still confirm which office holds the estate file before lodging anything, since a family living in one part of Gauteng may well be dealing with the office serving the area where the deceased last lived.

What It Costs

The headline cost comparison is straightforward:

Cost item	Position
Master’s registration fee	None — a genuine and under-reported advantage over an inter vivos trust
Professional trustee fees	Generally 1% to 2% per annum of trust asset value — the recurring cost that matters most over a trust’s life
Drafting the trust clause	Marginal — because the trust is a clause in the will, adding one costs far less than establishing an inter vivos trust from scratch
Estate administration	Still applies — the trust does not remove the estate administration layer. Executor fees and any estate duty are still payable

Budget for the surrounding costs too: drafting, Master’s fees, acceptance and management fees, tax preparation, audit, property management, termination, and attorney’s fees. Trustee remuneration is governed by the Trust Property Control Act, and trustees are entitled to charge for their work.

How a Testamentary Trust Is Taxed

The default position is a flat 45% on income retained in the trust — the standard South African trust rate. The exception that matters most for families is special trust status, which a testamentary trust can qualify for in two ways — the classifications are not mutually exclusive:

Special trust type	Who it is for	Tax treatment
Special trust (a)	Created solely for a person with a mental or physical disability as defined in section 6B(1) of the Income Tax Act	Taxed on the individual sliding scale; claiming this status requires an application at a SARS branch by appointment
Special trust (b)	Created solely for beneficiaries who are relatives of the deceased and alive at the date of death (including those conceived but not yet born), where the youngest beneficiary is under 18 on the last day of the year of assessment	Taxed on the individual sliding scale — this is the category most family trusts for children fall into

Special trusts are taxed on the sliding scale that applies to natural persons, not at 45% — but they do not qualify for the section 6 rebates. For a trust holding a modest inheritance for children, this is the difference between a punitive flat rate and ordinary individual rates. The catch worth stating plainly is that special trust (b) status falls away once the youngest beneficiary turns 18, and the trust reverts to the 45% rate — families should plan for that date rather than be surprised by it.

Income that is distributed to beneficiaries is taxed in their hands rather than the trust’s, which can keep each beneficiary below the tax threshold where the amounts are modest. No transfer duty is payable on fixed property passing from the deceased estate into the trust. Every trust must register with SARS, the trustee is the representative taxpayer, and the annual return is the ITR12T — trustees are personally responsible for filing it.

The Compliance Layer Nobody Else Covers: Beneficial Ownership

Since 1 April 2023, section 11A of the Trust Property Control Act — inserted by the General Laws (Anti-Money Laundering and Combating Terrorism Financing) Amendment Act 22 of 2022 — has required trustees to establish and record the beneficial ownership of the trust and lodge a register of that information with the Master’s office, with Chief Master Directive 8 of 2023 effective from 17 October 2023 and an original filing deadline of 15 November 2024.

The penalty is not nominal. Non-compliance carries a fine of up to R10 million, imprisonment of up to five years, or both, under section 19(2A) of the Act. This is the fact most likely to make a lay trustee take the obligation seriously, and it is one most private websites do not mention at all.

Trustees must:

• Disclose their trustee capacity to accountable institutions such as banks.
• Record those institutions’ details (regulation 3B).
• Establish and record the trust’s beneficial ownership information (regulation 3C).
• Lodge the beneficial ownership register with the Master.

A beneficial owner must be a natural person identifiable by name; a class of beneficiaries may be recorded, but once benefits are awarded to identifiable individuals, their details must be captured. The register must be kept current within a reasonable time of any change. Lodgement is electronic only — the Master accepts no hard copies ([email protected]). Reporting beneficial ownership to SARS does not satisfy the Trust Property Control Act obligation. These are two separate duties, and this is where trustees get caught out. Dormant and terminated trusts can claim exemption through the Master’s dedicated addresses, but a dormant trust that becomes active must comply.

This applies to testamentary trusts as much as to any other, and it is a duty that falls on ordinary family members serving as trustees — often without their knowing it.

What Trustees Are Actually Signing Up For

Trustees of a testamentary trust take on a meaningful set of obligations:

• A fiduciary duty to act in good faith, with care, diligence and skill; to act objectively and in accordance with the will; and not to make secret profits or speculate with trust assets.
• Keeping beneficiaries informed of all decisions and transactions.
• Keeping accurate financial statements — the Master may call trustees to account at any time.
• Filing the trust’s tax returns and meeting the beneficial ownership obligations.
• Administering strictly within the powers the will confers, since a testamentary trust’s terms are usually less detailed than an inter vivos trust deed and generally cannot be amended, although a court has limited powers of variation under the Trust Property Control Act.

The Honest Disadvantages

A testamentary trust works, but it is not always the right tool. The drawbacks to weigh up are:

• The will must be kept current. A trust clause naming trustees who have died, emigrated, or fallen out with the family is a real and common problem.
• Beneficiaries face delays. They must approach the trustees for anything unplanned, rather than simply drawing on their own money.
• Ongoing cost. Trustee fees of 1% to 2% per annum, plus accounting, audit and tax compliance, are a permanent drag on a small trust — for a modest inheritance to competent adult children, a direct bequest is usually better.
• Compliance burden on lay trustees. The beneficial ownership regime and annual ITR12T filings are genuine obligations, not formalities.
• It is not a shortcut around estate administration. The estate must still be wound up by the executor before the trust is funded.
• Special trust status is temporary where it rests on beneficiaries being under 18.

Frequently Asked Questions

What is a testamentary trust in South Africa?

It is a trust created by a clause in a valid will that comes into existence only when the testator dies. The will itself serves as the trust instrument, and the trustees named in it must obtain written letters of authority from the Master of the High Court under the Trust Property Control Act 57 of 1988 before they may deal with any trust asset. It is most often used to hold an inheritance for minor children, who cannot receive and manage capital directly.

How much does it cost to register a testamentary trust?

The Master charges no registration fee for a testamentary trust, because the deceased’s last will serves as the trust document — unlike a new inter vivos trust, which does attract a registration fee. The real cost is ongoing: professional trustees generally charge between 1% and 2% per annum of the value of the trust’s assets, and the trust also carries accounting, audit and tax compliance costs. Drafting the trust clause as part of a will is far cheaper than establishing a living trust.

What tax does a testamentary trust pay?

Income retained in an ordinary trust is taxed at a flat 45%. However, a testamentary trust often qualifies as a special trust and is then taxed on the sliding scale that applies to individuals, which is substantially lower — this applies where the trust is solely for relatives of the deceased who were alive at the date of death and the youngest beneficiary is under 18 on the last day of the tax year, or where it is solely for a beneficiary with a disability as defined in section 6B(1) of the Income Tax Act. Special trusts do not qualify for the section 6 rebates, and special trust status based on age falls away once the youngest beneficiary turns 18.

Does a testamentary trust avoid estate duty?

No. Assets bequeathed to a testamentary trust still pass through the deceased estate and are dealt with there for estate duty and executor’s fee purposes, so the trust is not a way to bypass estate administration. One real saving does exist: no transfer duty is payable on fixed property moving from the deceased estate into the trust. Any claim that estate duty and executor’s fees “generally do not apply” to a testamentary trust should be treated with caution.

What happens if there is no testamentary trust and a child inherits?

Where a minor inherits cash and no trust or other arrangement is in place, the inheritance is generally paid into the Guardian’s Fund administered by the Master of the High Court under the Administration of Estates Act 66 of 1965. The child’s guardian must then apply to the Master for releases towards maintenance and education, and the balance is paid out when the child reaches majority. A testamentary trust lets a parent choose the trustee and set the terms instead.

What must trustees of a testamentary trust actually do?

They must obtain letters of authority from the Master before acting at all, administer the assets strictly within the powers the will gives them, act in good faith with care and skill, keep beneficiaries informed, keep accurate financial statements, and account to the Master on request. They must also register the trust with SARS and file the annual ITR12T return. Since 1 April 2023 they must additionally disclose their trustee capacity to banks and other accountable institutions and lodge the trust’s beneficial ownership register electronically with the Master — reporting that information to SARS does not satisfy this duty.

Can a testamentary trust be changed after the testator dies?

Generally no. The terms are fixed by the will and cannot be amended once the testator has died, although a court has limited powers of variation under the Trust Property Control Act in defined circumstances. This is why the will should be reviewed regularly during the testator’s lifetime — a trust clause naming trustees who have since died, emigrated, or become unsuitable is a common and avoidable problem.

If you are drafting a will and wondering whether a testamentary trust is right for your family — or you have been named a trustee and are not sure what the Master expects of you — Burger Huyser Attorneys’ Wills and Estates team can walk you through it in plain language. Because the will is the trust instrument, the firm drafts the will and the trust clause together, administers the deceased estate that funds the trust, and handles the trust administration that follows. Consultations start at the head office at 49 First Avenue, Linden, Randburg on 011 888 0246 (after-hours 061 516 6878), with appointments available at the firm’s Sandton, Roodepoort, Midrand, Bedfordview, Alberton, Centurion and Pretoria branches. The firm holds a 4.8/5 average across 250+ Google reviews (Trustindex verified, “Top Rated Law Firm in South Africa”) and is known for being straight with clients about costs and prospects.