South Africa’s evolving tax enforcement environment is increasingly drawing foreign nationals into complex disputes with the South African Revenue Service (SARS) — particularly where individuals hold South African permanent residence, maintain local bank accounts, own property, or support family members living in the Republic.

While many foreign nationals lawfully earn their income abroad and remain tax resident elsewhere, SARS appears to be intensifying scrutiny over unexplained deposits into South African bank accounts, often presuming such amounts to constitute taxable income unless proven otherwise.

In practice, this has resulted in a growing number of foreign nationals facing:

• retrospective SARS audits; 
• automatic tax registrations; 
• administrative penalties; 
• estimated assessments; and 
• disputes regarding South African tax residency status. 

Importantly, the mere receipt of funds into a South African bank account does not automatically render those amounts taxable in South Africa. However, more taxpayers are being required to substantiate the origin, nature, and tax treatment of inbound foreign funds with detailed supporting evidence.

Foreign Nationals Increasingly Drawn into SARS Residency Disputes

One of the more significant challenges facing foreign nationals is SARS’ interpretation of South African tax residency principles where individuals maintain economic or family ties to South Africa.

In one recent matter, a Kenyan national who had permanently resided and worked in Mozambique as an attorney for more than 20 years was subjected to a SARS audit after failing to submit South African income tax returns from 2020 onwards.

Although the individual held South African permanent residence and owned several South African investment properties, he had never worked in South Africa and primarily lived and earned income in Mozambique. His wife and children resided in South Africa due to the children’s schooling, while he regularly travelled between the two countries without exceeding the physical presence thresholds ordinarily associated with South African tax residency.

Despite these facts, SARS automatically activated his South African tax profile as a tax resident and further sought to treat transfers from Mozambique into his South African bank accounts as taxable income.

The matter illustrates the complex distinction between holding South African permanent residence, maintaining South African assets or family connections, and actually being regarded as a South African tax resident under domestic law or applicable double tax agreements.

While foreign nationals may lawfully hold South African assets and banking relationships, SARS may nevertheless infer tax residency where sufficient connecting factors exist, particularly where:

• spouses or dependants reside in South Africa; 
• a permanent home remains available locally; 
• substantial economic interests exist in South Africa; or 
• the taxpayer regularly returns to the Republic. 

When Bank Deposits Become “Income”

A further trend emerging in SARS audits involves the treatment of inbound foreign transfers as presumed taxable receipts.

This is evident from a matter involving a foreign national residing in South Africa, where SARS questioned substantial deposits into the taxpayer’s local bank account despite the taxpayer maintaining that the majority of funds represented financial support from non-resident parents abroad.

The taxpayer was ultimately required to produce:

• foreign bank statements; 
• MoneyGram and Western Union transfer confirmations; 
• supporting affidavits from family members; and 
• detailed reconciliations linking deposits to offshore remittances.

Genuine family support payments, gifts, and allowances from non-resident relatives do not automatically constitute taxable income merely because they are deposited into a South African bank account.

However, SARS increasingly expects taxpayers to substantiate:

• the identity of the sender; 
• the source of the funds; 
• the purpose of the payments; and 
• whether the receipts are capital or revenue in nature. 

In many cases, the practical difficulty is not necessarily the legal position itself, but rather the taxpayer’s ability to produce sufficiently detailed evidence years after the transactions occurred.

Rotation Workers and Cross-Border Employment Complexity

Foreign nationals working elsewhere in Africa while maintaining South African residence rights are also gradually encountering more SARS scrutiny.

In a recent enquiry, a permanent resident of South Africa working on a rotational basis in the Democratic Republic of Congo indicated that he spent approximately seven weeks working in the DRC followed by three weeks in South Africa.

Despite earning remuneration in the DRC, the individual received SARS penalties and audit-related correspondence while outside South Africa and faced imminent compliance deadlines before being able to return to the country.

These matters highlight the practical difficulties many expatriates and rotational workers experience, particularly where SARS correspondence is missed, tax returns remain outstanding, or taxpayers incorrectly assume that foreign employment income falls entirely outside the South African tax system.

Depending on the individual’s tax residency status, applicable exemptions, treaty protection, and source of income, foreign employment earnings may still require disclosure to SARS even where ultimately exempt or taxable elsewhere.

SARS’ Expanding Financial Visibility

The broader enforcement environment cannot be ignored.

SARS now operates within a more sophisticated global information-sharing ecosystem involving international banking transparency measures; automatic exchange of information agreements; enhanced banking verification systems; and cross-border financial reporting obligations. 

This has significantly increased SARS’ visibility over offshore income streams, foreign bank transfers, remittance patterns, and unexplained wealth accumulation.

As a result, foreign nationals living, investing, studying, or supporting family members in South Africa increasingly face verification requests regarding the source and tax treatment of foreign funds entering the country.

Practical Considerations for Foreign Nationals

Foreign nationals with South African ties should ensure that their affairs are proactively reviewed before SARS initiates verification or audit proceedings.

Particular attention should be given to:

• tax residency status; 
• double tax agreement relief; 
• supporting documentation for offshore remittances; 
• foreign employment structures; 
• South African filing obligations; and 
• the distinction between taxable income and non-taxable capital receipts. 

Where funds are regularly transferred into South Africa from abroad, maintaining proper supporting records — including foreign bank statements, remittance confirmations, employment contracts, affidavits, and proof of foreign tax residence — is becoming increasingly essential.

As SARS continues intensifying its focus on cross-border financial activity, foreign nationals can no longer assume that offshore earnings or foreign capital transfers will avoid scrutiny simply because they originate outside South Africa.

Foreign nationals facing SARS audits, residency disputes, unexplained deposit enquiries, or cross-border tax uncertainty should seek assistance from a suitably qualified cross-border tax specialist with experience in South African tax residency, international tax treaties, expatriate taxation, and SARS dispute resolution.

Written by Darren Britz, Partner and Head of Tax Legal at Tax Consulting SA; and Delano Abdoll, Legal Manager: Cross-Border Taxation at Tax Consulting SA