Situs Tax: The Hidden Cost of Owning Foreign Assets That Could Cost Your Beneficiaries Dearly

What You Will Learn From This Article

• What situs tax actually means, and why owning US shares directly can expose your estate to a tax most South Africans have never heard of
• Whether South Africa’s tax treaty with the US actually helps, and how much
• How South African estate duty and donations tax actually work, including the real thresholds and rates
• What the tax-free threshold actually is for a spouse, a child, a life partner, and an unrelated beneficiary, and why the answer surprises most people
• What a donation actually means for the person receiving it
• A framework for thinking about when a portfolio is large enough to start reducing through lifetime giving

If you hold Apple, Amazon, or Microsoft shares directly, or a US-domiciled ETF, through a South African brokerage platform, there’s a tax exposure sitting in your portfolio that has nothing to do with South African law, and everything to do with where the United States considers those shares to be legally located when you die.

What Situs Tax Actually Means

Situs is a legal term for the location of an asset for tax purposes. It matters because several countries, the United States most significantly for South African investors, tax the estates of foreign individuals specifically on assets considered to have a situs within their borders, regardless of where the investor lived, banked, or held their brokerage account. The country where you live, the platform you used to buy the shares, and the fact that you’ve never set foot in the United States are all irrelevant to this rule. What matters is the legal nature of the asset itself.

The US Situs Trap for South African Investors

Shares in US-incorporated companies are US situs assets. This includes direct holdings bought through platforms like EasyEquities or Interactive Brokers, and it includes most US-domiciled ETFs and mutual funds, even when held entirely through a South African account and never touched by a US financial institution directly. A South African who has never visited the United States can still leave their heirs a US estate tax bill purely by holding US-listed shares at the date of death.

The exposure is severe because of a specific, well-known gap in US law. A US citizen or resident currently enjoys a federal estate tax exemption of $15 million, effective from 1 January 2026. A non-resident, non-citizen individual, the category almost every South African investor falls into, gets an exemption of just $60,000, a figure that has never been adjusted for inflation. Anything above that $60,000 is taxed on a sliding scale from 18% up to 40%, with the top rate applying above roughly $1 million in US-situs value. A $500,000 position in US-listed shares, held by a South African with no other US connection, can generate a US estate tax bill in the region of $140,000, an effective rate of close to 28%, before any South African estate duty is even calculated separately.

Not everything US-related is caught. US bank deposits are generally excluded from this rule, as are certain qualifying portfolio debt instruments and life insurance proceeds payable on the life of a non-US person. The most common planning technique used to sidestep this exposure entirely is switching from US-domiciled ETFs to equivalent Ireland-domiciled ETFs, which track the same US indices and hold the same underlying US companies, but are not themselves classified as US-situs assets in the hands of a foreign holder. This is a well-established, widely used structuring choice, not an aggressive tax scheme, and it’s worth discussing directly with your investment platform or adviser if you hold meaningful US exposure through US-domiciled funds specifically.

Does South Africa’s Tax Treaty With the US Actually Help?

South Africa is one of only sixteen countries with an estate tax treaty in force with the United States, alongside the UK, Germany, France, and a small handful of others, a genuinely rare protection most nationalities don’t have at all. It’s worth being precise about what that treaty actually does, though, because this is an area where assuming too much can be costly. Some countries’ treaties, including the UK’s, extend a pro-rata share of the full US citizen exemption to their residents, potentially raising the effective exemption from $60,000 into the millions, and in some cases extend the unlimited marital deduction to a non-citizen surviving spouse as well.

South Africa’s treaty, one of the older estate tax treaties still in force, provides relief primarily in the form of a tax credit designed to prevent the same asset being fully taxed by both countries, rather than the more generous pro-rata exemption or marital deduction some newer treaties provide. In plain terms, this means South African residents should not assume they automatically get UK-style relief simply because a treaty exists. The $60,000 threshold and the underlying US tax exposure described above remain very real for South African holders of US-situs assets. Given how technical and country-specific this area is, anyone holding a meaningfully large direct US share position should get advice from a practitioner who specifically handles cross-border South Africa-US estate matters, rather than relying on general treaty summaries, including this one, to calculate an exact expected liability.

South Africa’s Own Estate Duty and Donations Tax

Separately from any US exposure, your worldwide estate, if you’re a South African resident, is subject to South African estate duty. Every estate gets a primary abatement of R3.5 million, meaning the first R3.5 million of your dutiable estate attracts no estate duty at all. Above that, estate duty is charged at 20% up to R30 million of dutiable value, and 25% on anything above that.

Donations tax operates as a parallel system aimed at preventing people from simply giving everything away shortly before death to avoid estate duty. It’s charged at the same rates, 20% up to a cumulative R30 million donated since March 2018, 25% above that, but it’s levied on the donor during their lifetime, on the value of what they give away. As of the February 2026 Budget, every individual can donate up to R150,000 per tax year completely free of donations tax, the first increase to this annual exemption since 2007, up from the previous R100,000 threshold.

The “Duty-Free Level” by Beneficiary Type, and Why It Surprises Most People

Many South Africans assume, often based on how inheritance tax works in the UK or various European countries, that South Africa has different tax-free thresholds depending on whether you’re leaving money to a spouse, a child, a life partner, or an unrelated person. It doesn’t work that way. South African law recognises essentially two tiers, not four.

Spouse: Assets left to a spouse are fully exempt from estate duty, with no upper limit, under Section 4(q) of the Estate Duty Act, and lifetime donations between spouses are fully exempt from donations tax as well, also with no upper limit. Any unused portion of the R3.5 million abatement on the first spouse’s death rolls over to the surviving spouse’s estate, creating a combined abatement of up to R7 million on the second death.

Significant other: This is the beneficiary type most people get wrong. The legal definition of “spouse” used for both estate duty and donations tax purposes is drawn from the Income Tax Act and is broader than a marriage certificate. It explicitly includes permanent same-sex or heterosexual life partnerships, provided the partners can satisfy SARS that the relationship was genuinely intended to be permanent, typically evidenced through shared finances, a joint bond or accounts, and often a supporting affidavit. In other words, a long-term unmarried partner can receive exactly the same unlimited exemption a legal spouse does, but unlike a marriage certificate, it isn’t automatic; the permanency has to be demonstrated and may be tested by SARS.

Child: A child receives no special exemption beyond what any other beneficiary gets. Whatever they inherit simply draws down the same single R3.5 million abatement available to the estate as a whole, shared across every non-spouse beneficiary, not multiplied per child.

Unrelated individual: Treated identically to a child for both estate duty and donations tax purposes. There is no relationship-based penalty or benefit; a bequest or donation to a friend, a business partner, or any other unrelated person draws on exactly the same general abatement and exemption thresholds as a bequest to your own child.

What a Donation Actually Means for the Person Receiving It

In South Africa, donations tax is a tax on the giver, not the receiver. Someone who receives a genuine donation, whether cash, shares, or property, doesn’t pay income tax or donations tax on receiving it. From that point forward, the asset is legally theirs; any future growth, dividends, or interest it generates belongs to them and is taxed in their hands going forward, and it will eventually form part of their own estate one day, not yours.

There’s one important exception worth knowing if you’re donating to a minor child specifically. Under the Income Tax Act’s donor attribution rules, income generated by an asset donated to a minor child can, in certain circumstances, be attributed back to the donor for income tax purposes rather than taxed in the child’s own hands. This doesn’t affect the donations tax exemption itself, but it can affect the ongoing income tax efficiency of the strategy, and it’s worth structuring correctly with a professional if the amounts involved are meaningful.

At What Portfolio Value Should You Start Thinking About Reducing It Through Giving?

There’s no single number that applies to everyone, but a few checkpoints are worth using as a starting framework rather than guessing.

• If your dutiable estate is comfortably below R3.5 million, or R7 million as a couple using the full rollover, lifetime giving purely to reduce estate duty has little to gain, since that duty wouldn’t be payable in the first place.
• If your estate sits meaningfully above those thresholds, using the full R150,000 annual donations tax exemption every year, consistently, is one of the few genuinely cost-free ways to shrink a future dutiable estate over time. R150,000 given away every year for ten years moves R1.5 million out of your estate entirely tax-free, and that R1.5 million then grows in your beneficiary’s hands rather than your own from that point forward.
• If you hold direct US-listed shares or US-domiciled ETFs, the relevant checkpoint is far lower and separate from the above: $60,000 in current value. Above that, your US-situs holding itself is what needs active planning, regardless of how large or small your total worldwide estate is.

The right amount and pace of lifetime giving for your specific situation depends on your income needs, your other assets, and your family circumstances, and is worth working through with a financial planner rather than applying a generic rule. What’s worth taking from this framework is simply that “large enough to matter” is a lower bar than most people assume, particularly where US-situs assets are involved.

Key Takeaways

• Situs tax means an asset can be taxed based on its legal location, not where its owner lives; US-listed shares held by South Africans remain US situs assets even through a local broker
• Non-resident holders of US-situs assets get only a $60,000 estate tax exemption, against a $15 million exemption for US citizens, with rates up to 40% above that threshold
• South Africa has an estate tax treaty with the US, one of only sixteen countries that do, but it provides double-tax credit relief rather than the more generous pro-rata exemption some other treaty countries receive
• South African estate duty exempts the first R3.5 million of any estate, then charges 20% up to R30 million and 25% above; donations tax mirrors these rates with a R150,000 annual exemption per person as of March 2026
• Only two beneficiary tiers actually exist under South African law: spouses and provable permanent life partners get an unlimited exemption, while children and unrelated individuals share the same general abatement with no special treatment
• Donations tax is paid by the giver, not the receiver; a genuine donation becomes the recipient’s own asset immediately, subject to specific attribution rules where the recipient is a minor child

Frequently Asked Questions

Do I owe US estate tax if I’ve never visited the United States?

Yes, potentially. US estate tax exposure for non-residents is based on the situs of the asset, not your residency, citizenship, or physical presence in the US. Holding US-listed shares through a South African broker is enough to create exposure.

Does converting to an Ireland-domiciled ETF eliminate US estate tax exposure?

Generally yes, for the assets held in that structure, since Ireland-domiciled funds tracking US indices are typically not classified as US-situs assets for a foreign holder, even though they hold the same underlying US shares. Confirm the specific fund’s domicile and structure before relying on this.

If I leave everything to my child instead of my spouse, do they get a better tax-free threshold?

No. Children receive no special exemption beyond the general R3.5 million abatement shared by the whole estate. Only a spouse, or an unmarried partner who can demonstrate a permanent relationship to SARS, receives the unlimited exemption.

Does my unmarried partner automatically get the same treatment as a spouse?

Not automatically. The exemption is available to permanent life partners, but unlike a legal spouse, the permanency of the relationship needs to be demonstrated to SARS, typically through evidence like shared finances or a supporting affidavit, rather than being established simply by a marriage certificate.

Does the person who receives a donation from me have to pay tax on it?

No. In South Africa, donations tax is paid by the donor, not the recipient. The recipient owes no donations tax or income tax on the donation itself, though income generated from a donation to a minor child can, in some circumstances, be taxed back to the donor rather than the child.

This article was researched and drafted with the assistance of AI tools and reviewed for accuracy. It is general information, not personalised tax, legal, or financial advice, and cross-border estate matters in particular depend heavily on individual circumstances. US estate tax and treaty rules are technical and carry real financial consequences if misapplied; anyone holding meaningful US-situs assets should consult a professional experienced specifically in South Africa-US cross-border estate planning before making decisions. South African estate duty and donations tax figures reflect the law as at the 2026 Budget and are subject to change; please confirm current thresholds with SARS or a qualified estate planning professional before relying on them.