SARS Tax Diagnostic: creating a clear path for expats and emigrants

For many South Africans living abroad, tax can feel like “out of sight, out of mind.” But even if you have left the country without formally ceasing tax residency in South Africa, you are still fully visible to the South African Revenue Service (SARS), which means you’re exposed to unexpected compliance risks.

As global mobility increases and SARS strengthens monitoring of expats, assuming your affairs are in order can be costly. A tax diagnostic or tax health check offers South African expats and emigrants a practical way to understand their position and take control before small issues become major problems.

Top three takeaways for expats on South African income tax

1. Leaving South Africa does not automatically end your tax obligations. If you have not formally ceased tax residency with South Africa, SARS is entitled to treat you as a tax resident and expect full disclosure of your worldwide income.
2. Hidden SARS risks can build up while you live abroad. Outstanding returns, undeclared foreign income, penalties, or discrepancies on your South African Revenue Service eFiling profile or the SARS app may exist without your knowledge.
3. A tax diagnostic gives you clarity and a plan. A tax diagnostic helps you understand your compliance position, fix issues early, and map the correct steps if you intend to formally manage your South African expat tax or South African tax for expats obligations.
   Read more: Warning – SARS is monitoring South African expats abroad who want to return home.

Why expats need clarity on their SARS tax status

Many expats assume that leaving South Africa automatically ends their tax responsibilities. We wish it were that easy! In reality, your obligations depend on your residency status with the South African Revenue Service, not your location.

As such, if you have not formally updated your status, SARS may still consider you a resident. This could mean you’ve been liable for tax on your worldwide income, from the date you left South African soil, including foreign salary, investments, and benefits. South African expat tax is a significant worry for those living abroad, and if it isn’t, it’s a problem.

Failure to formalise your residency can trigger penalties, interest, and even a SARS tax audit. If you’re not crystal clear on your position with SARS, engaging with the Voluntary Disclosure Programme or Voluntary Tax Disclosure Programme may help correct historical filings proactively.

Read more: Left South Africa without informing SARS? What now for your tax resident status?

What is a SARS tax diagnostic for expats?

A tax diagnostic, also referred to as a tax health check, is a comprehensive review of your profile with the South African revenue authorities. It provides a clear picture of how SARS interprets your filings and highlights any compliance gaps or risks.

Much like a medical check-up, the goal is not only to identify problems but to remove uncertainty and prevent issues from escalating. A tax diagnostic is also a starting point for seeking professional tax advice in South Africa, helping expats understand their obligations and plan next steps.

Read more: Why South African expats must stay sharp on SARS tax residency rules.

What is the tax diagnostic process for expats?

For South Africans living abroad, understanding your tax position with SARS is critical. A structured expat tax review helps you identify risks, fix errors, and plan your next steps with confidence. The process typically includes:

1. Reconciliation of your SARS records: All your submitted returns, assessments, and payments are checked against South African Revenue Service records. This ensures your filings are accurate and your tax compliance in South Africa is up to date, even if you are living overseas.

2. Verification of personal information: Your contact details and profile information are reviewed to make sure SARS can reach you. This is essential for expats because notices or important updates via the South African Revenue Service eFiling or the SARS app might otherwise be missed while you are abroad.

3. Identification of risks and errors: The review highlights any administrative or compliance risks, such as:

• Missing or late returns –
• Undeclared foreign income
• Incorrect tax residency in South Africa status
• Discrepancies in previous filings
• Outstanding penalties or interest

4. Addressing these issues early helps prevent unexpected SARS tax audits or backdated assessments.4. Strategic action plan: A clear roadmap is developed to guide your next steps, deadlines, and any interventions required. This ensures your international tax position is correct and aligned with South African expat tax obligations.

5. SARS engagement if required. If needed, SARS can be contacted to correct records, update your details, or request reprocessing before issues escalate. Expatriates may also use the Voluntary Disclosure Programme to resolve past inconsistencies proactively.

Why a tax diagnostic matters for emigrants

While a tax diagnostic is valuable for any taxpayer, it is particularly important for expatriates and those planning to emigrate. It helps South Africans already living abroad:

• Ensure no unresolved filings, penalties, or risks remain.
• Individuals planning to leave South Africa: Manage exit obligations correctly and avoid complications later.
• Those intending to cease tax residency: Tax emigration is a formal legal process that requires proper documentation and approval from the South African Revenue Service. A diagnostic ensures your actions align with SARS requirements.

Without this clarity, you might still unknowingly remain a tax resident and continue accumulating obligations under the tax residency rules of South Africa.

Read more: South African tax residency rules – expats, are you still tax residents of South Africa?

How SARS determines tax residency

SARS applies two key tests in deciding whether you are a resident or non-resident for tax purposes in South Africa:

• The ordinarily resident test – where your permanent home and intentions lie
• The physical presence test – based on days spent in South Africa

Even a long-term absence does not automatically end South African tax residency. Formal cessation must be approved by SARS.

Read more: Breaking tax residency with SA: when to apply the physical presence or ordinary residence test.

What changes once you cease tax residency?

Once SARS acknowledges that you no longer meet the requirements to be considered a tax resident of South Africa, you will become a non-resident for tax purposes.

• Only South African–sourced income is taxable
• Foreign income earned after cessation is generally exempt
• SARS records your status and issues a confirmation letter

However, your tax emigration may trigger capital gains “exit tax” on worldwide assets (if you have them), excluding South African immovable property. As such, planning is essential.

Common risks for expats who haven’t formalised their status with SARS:

• Continued worldwide tax liability
• Unfiled annual returns
• Undeclared foreign income
• Missed correspondence from the South African Revenue Service
• Administrative penalties and interest
• Complex backdated corrections

How to check your current SARS position

You can start with the South African Revenue Service eFiling or the SARS app, where you can view

• Filing history
• Outstanding returns
• Notices and correspondence
• Assessments and penalties

However, a professional tax health check or tax diagnostic is essential for identifying hidden risks and confirming your tax residency status in South Africa.

The value of acting early

Conducting a tax diagnostic early allows you to

• Resolve issues before SARS escalates them
• Identify hidden inconsistencies or penalties
• Confirm your tax residency status in South Africa
• Plan future filings and financial decisions
• Prepare properly to cease tax residency in South Africa

FinGlobal: a proactive path forward for expats

SARS is modernising its systems, making it risky to wait for notification that you’ve fallen foul of the revenue authority. For South Africans abroad, a professional expat tax review gives clarity on your standing with SA Revenue Services, helping you manage obligations, avoid surprises, and stay fully compliant.

If you left South Africa several years ago, or your emigration is still in the pipeline, FinGlobal can assist you in clarifying your position with SARS. From expat tax compliance to tax emigration, retirement annuity withdrawal, and more, FinGlobal is ready to assist.

To learn more about our trusted cross-border tax and financial services for expats, leave your contact details below, and one of our experts will be in touch soon!