If you are a South African with money, investments, or assets offshore, a recent court ruling on South African tax law is worth paying attention to.
The Supreme Court of Appeal of South Africa has reinforced a key principle. If you cannot clearly explain the source of your foreign funds, the South African Revenue Service (SARS) can tax those amounts and impose significant penalties.
The case involved a foreign deposit that the taxpayer failed to properly account for. What made matters worse was that his explanation changed over time, which ultimately weakened his position and led to an unsuccessful challenge.
While the facts are specific, the broader message is clear. For expats and globally mobile South Africans, offshore money is fully within the scope of SARS.
Top three tax takeaways for South Africans with offshore income
- You must prove where your foreign money comes from: Under income tax law in South Africa, the responsibility sits with you to show why funds should not be taxed. If you receive money from abroad, you need clear, supporting documentation to prove whether it is a loan, a return of capital, or income. Without this, SARS is entitled to treat it as taxable.
- Changing your explanation can trigger penalties: Consistency matters. If your version of events changes over time, especially during a dispute, it can damage your credibility. In this case, conflicting explanations played a major role in the outcome and contributed to the imposition of significant SARS tax penalties.
- Old offshore transactions are not off the hook: There is no easy escape through the passage of time. SARS can investigate historical foreign deposits and reassess them years later, particularly if they surface during a lifestyle audit process. This means past non-disclosure of foreign income tax obligations in South Africa can still lead to tax and penalties today.
Read more: Why South African expats must stay sharp on SARS tax residency rules.
How South Africa taxes foreign income
A common misconception is that income earned offshore is automatically outside the South African tax system. This is definitely not the case.
In reality, if you are still considered a tax resident, South Africa taxes your worldwide income. This includes employment income, investment returns, and certain capital receipts, regardless of where the funds are held.
This is why it is so important to understand when you are required to pay tax in South Africa. Your tax residency status determines whether global income is included in your taxable income in South Africa, and many expats only realise the impact once SARS begins asking questions.
The South African tax residency test is central to this determination and often becomes the starting point in cross-border tax disputes.
Read more: South African tax residency rules – expats, are you still tax residents of South Africa?
Lifestyle audits and how SARS identifies offshore income
In the case at hand, SARS identified the issue through a review of the taxpayer’s financial activity. This is commonly referred to as a lifestyle audit. In simple terms, it involves comparing declared income with actual spending, assets, and financial behaviour. If there is a mismatch, it raises questions – obviously.
The lifestyle audit process is increasingly used by SARS to detect undeclared income, including offshore deposits and cross-border transfers.
For expats, this means that even income earned or held outside South Africa can come under scrutiny if it does not align with what has been declared locally.
Read more: Warning – SARS is monitoring South African expats abroad who want to return home.
Beneficial ownership and offshore structures
A key issue in the case was the ownership of the funds. The taxpayer later claimed the money was linked to a foreign company where he was the ultimate beneficial owner. However, this explanation contradicted earlier statements and weakened his case. South African tax law places significant emphasis on substance over form. SARS will look at who ultimately benefits from assets, not just how they are structured legally.
In other words, appearances matter little, and if you are the beneficial owner of offshore entities or accounts, those assets may still fall within the scope of South Africa’s tax on foreign income rules. This is particularly important for expats using offshore companies or trusts, where ownership and control can become blurred.
SARS tax penalties and undisclosed foreign income
The penalties in this case were substantial. SARS imposed a 90% understatement penalty fee, which the court upheld. The judgment also noted that even higher penalties could have been justified based on the taxpayer’s conduct.
Where foreign income is not properly declared, SARS can issue a penalty assessment notice and apply additional charges. In more serious cases, this can include penalties on undisclosed foreign income.
If you receive a penalty assessment notice from SARS, you can dispute it. However, success depends heavily on consistent explanations and strong documentary evidence.
Tax disputes and the tax court in South Africa
Taxpayers have the right to challenge SARS assessments through formal objection and appeal processes. If unresolved, matters may proceed to the tax court in South Africa. In more complex disputes, cases can escalate further, including to the Supreme Court of Appeal.
However, South African tax law consistently places the burden on the taxpayer to prove their case. Recent tax court cases in South Africa show a clear pattern. Where explanations are inconsistent or unsupported, courts are unlikely to overturn SARS assessments.
Who must pay tax in South Africa?
At the heart of this issue is a simple question: who must pay tax in South Africa?
If you are a tax resident, you are generally taxed on your worldwide income. This includes offshore earnings, investment income, and certain capital gains.
This is governed by income tax rules in South Africa and reinforced by your tax residency status. If foreign income is not correctly declared, SARS can reopen assessments, apply penalties, and investigate historical transactions, even years after they occurred.
Read more: Hot question: Do you pay tax in South Africa if you live abroad?
FinGlobal: expat tax specialists for South Africans
This ruling is a clear reminder that offshore does not mean outside SARS’ reach. South African tax law continues to evolve in line with global transparency standards, giving SARS greater visibility over foreign income and assets.
If you have money outside South Africa, the safest approach is to ensure your tax residency position is clearly documented and your tax position is fully aligned with your actual financial activity. Being proactive now can help you avoid unnecessary penalties and disputes later.
Unsure where you stand? A SARS Tax Diagnostic with FinGlobal can create a clear path for expats and emigrants. Contact us today to get started.