SARS Is Getting Smarter and Harder to Ignore

Recent reports in the financial press confirm what we, as practitioners, are seeing daily: the South African Revenue Service (SARS) is becoming increasingly sophisticated in how it identifies, tracks and collects outstanding taxes.

One of the latest developments is SARS now communicating directly with taxpayers via WhatsApp, a significant shift from the traditional reliance on letters and emails. While this may seem unusual, it forms part of SARS’s broader strategy to modernise and engage taxpayers on platforms they use most.

A New Era of Communication

SARS has confirmed that WhatsApp is now being used as a direct communication tool, not just for updates or self-service queries, but also for compliance and debt collection purposes. These messages should not be ignored.

In many cases, they may follow formal processes such as a Letter of Final Demand, which is a critical step before SARS proceeds with enforcement actions.

Behind the Scenes: SARS Is Using Data Like Never Before

What is more important and often less visible, is how SARS is gathering information.

SARS is no longer relying solely on what taxpayers declare. Instead, it is actively using third-party data sources, including:

•  The Deeds Office (for property transactions)

•  Banks (for interest earned and financial flows)

•  Employers and payroll systems

•  Investment platforms and financial institutions

This means SARS can now independently reconstruct a taxpayer’s financial position.

Property Sales and Capital Gains Tax

One of the most notable developments is how SARS is handling property transactions.

When a property is sold, the transaction is recorded at the Deeds Office. SARS has access to this data and can:

•  Identify that a property was sold

•  Determine the selling price

•  Estimate or calculate the capital gain

•  Raise an assessment for Capital Gains Tax (CGT)

If the transaction is not properly declared, SARS may issue an assessment based on its own data - often without the taxpayer’s input.

This can be problematic, as SARS:

• May not consider the correct base cost

• May exclude legitimate deductions or improvements

• May apply assumptions that increase the taxable gain

Interest Income – No Longer “Invisible”

Similarly, interest earned from banks is fully visible to SARS.

Financial institutions submit data directly to SARS, meaning:

• All interest earned is tracked

• Omissions are easily identified

• Automated assessments can be raised

The days of small amounts of undeclared interest going unnoticed are effectively over.

The Bigger Picture: SARS Is Under Pressure

As of January 2026, South Africa’s outstanding tax debt stands at approximately R646 billion, with a significant portion being undisputed and legally recoverable.

SARS is under increasing pressure to collect this revenue and is investing heavily in:

• Data analytics

• Digital communication

• Enforcement capacity

• Legal recovery processes

 This is not a temporary initiative. It is a long-term structural shift.

What This Means for You

The key takeaway for taxpayers and business owners is simple:

• SARS already has more information than you think.

• Ignoring messages, delaying compliance, or assuming “it won’t be picked up” is becoming increasingly risky.

We strongly recommend:

• Ensuring all property transactions are correctly disclosed

• Reviewing interest and investment income annually

• Responding promptly to any SARS communication

• Verifying messages via eFiling to avoid scams

Final Thoughts

The way SARS operates has fundamentally changed. It is no longer just an authority that reviews submissions, it is now a data-driven organisation that actively identifies non-compliance. In this environment, the best strategy is not avoidance, but proactive compliance and proper planning.