The landscape of taxation is undergoing a massive transformation, affecting everyone from individual salary earners to massive multinational corporations. South Africa is adopting new international frameworks while wrestling with severe domestic revenue challenges. A shrinking local tax base has pushed authorities to tighten compliance and reshape long-standing regulations to ensure the national fiscus remains stable.
Understanding these updates is no longer just a task for corporate accountants. Whether you run a large enterprise or manage your own personal wealth, these shifts have direct implications for your financial planning. The South African Revenue Service (SARS) is changing how it views errors, how it taxes international profits, and how it handles retirement funds.
The Global Minimum Tax arrives in South Africa
South Africa has officially joined the international push to prevent large corporations from shifting profits to low-tax jurisdictions. To achieve this, the government has enacted the Global Minimum Tax (GMT) legislation, aligning with the OECD’s framework.
Implications for multinational enterprises
The GMT applies to large multinational enterprise (MNE) groups with a global consolidated turnover exceeding €750 million in at least two of the four preceding years. The core objective is to ensure these entities pay a minimum effective tax rate of 15% on their income, regardless of where they operate.
South Africa uses two primary charging mechanisms to enforce this:
- Income Inclusion Rule (IIR): This imposes a top-up tax on South African tax-resident MNE groups with foreign subsidiaries if their effective tax rate falls below the 15% threshold.
- Domestic Minimum Top-up Tax (DMTT): This applies to the low-taxed profits of foreign inbound MNEs operating within South Africa, ensuring the top-up tax is collected locally before another country can claim it.
SARS eFiling and registration
Compliance is critical. SARS will launch the GMT registration portal on the eFiling system starting 16 March 2026. Affected multinational enterprises must proactively ensure their entity access and authorisation arrangements on eFiling are up to date. The official deadline to complete registration and notification requirements is 30 April 2026, making early preparation essential for large corporate groups.
The challenge of a shrinking taxpayer base
While global rules target large corporations, the domestic front faces a different kind of pressure. South Africa’s personal income tax base is contracting, creating a heavy burden on the individuals who remain.
SARS expects to collect around R844-billion in personal income tax for the 2026/27 tax year. Personal income tax remains the largest single contributor to government revenue. However, the National Treasury projects that the number of registered taxpayers will decline by 196,721, bringing the total pool down to approximately 14.248-million.
The impact of emigration
Emigration is a primary driver behind this declining tax base. Skilled professionals are leaving the country at a notable rate. Recent data shows that 61% of individuals ceasing their tax residency over a four-year period were between the ages of 18 and 44. This represents a significant loss of productive, highly skilled workers.
Furthermore, this trend is not isolated to middle-income earners. High-net-worth individuals, including those earning multi-million rand salaries, are also relocating. As the pool of high-earning taxpayers shrinks, the government faces limited options to plug the fiscal gap. This reality has prompted SARS to intensify its enforcement efforts, expanding lifestyle audits and data-sharing initiatives across multiple government bodies.
Stricter rules for understatement penalties
As SARS seeks to maximise revenue collection from the remaining tax base, it has tightened the rules around compliance errors. The 2026 Tax Administration Laws Amendment Act introduced a major change to the understatement penalty regime, specifically regarding the “bona fide inadvertent error” defence.
Previously, if a taxpayer made an innocent mistake, often after relying on independent, reputable tax advice, SARS was prohibited from levying an understatement penalty. This exclusion provided a safety net for taxpayers who made genuine errors despite trying to comply.
The new rules remove this blanket protection. The “bona fide inadvertent error” exclusion has now been moved to section 223 of the Tax Administration Act. It only applies as a basis for the remission of a 10% “substantial understatement” penalty. This means SARS is no longer prevented from imposing penalties initially; instead, the burden shifts entirely to the taxpayer to dispute the penalty and prove the error was genuinely inadvertent. This change underscores the need for absolute precision in tax filings, as the cost of making a mistake has grown significantly.
Key domestic tax amendments
Beyond international frameworks and penalty regimes, the latest tax amendment acts introduced several targeted domestic changes. These adjustments offer a mix of relief and technical refinement.
VAT remains steady
Consumers and businesses received welcome news regarding Value-Added Tax (VAT). Despite previous concerns and speculations about a potential rate hike to cover budget shortfalls, the National Treasury explicitly prevented an increase in the VAT rate for the 2026 period. This decision spares households from higher daily living costs and saves businesses from the heavy administrative burden of adjusting their pricing systems.
The two-pot retirement system
The National Treasury has also refined the rules governing the newly implemented two-pot retirement system. The definitions and withdrawal rules have been clarified to help members exiting retirement funds. For instance, upon termination of membership, a taxpayer can now withdraw the full balance of their savings component even if that balance is below the R2,000 minimum threshold that previously applied.
Extensions for property and employment incentives
Investment and employment incentives received a boost as well. The urban development zone (UDZ) allowance has been extended by five years, now set to expire on 31 March 2030. This extension protects accelerated tax deductions for developers engaged in qualifying urban renewal projects.
Additionally, the Employment Tax Incentive (ETI) thresholds were increased. The qualifying remuneration limit rose from R6,500 to R7,500, providing employers with greater payroll relief when hiring younger workers.
Planning for a stricter compliance environment
The overarching theme of these tax changes is a shift toward rigorous compliance. The introduction of the Global Minimum Tax shows South Africa’s commitment to international standards, while domestic changes reflect a revenue service determined to protect its shrinking tax base.
With SARS tightening its penalty frameworks and increasing lifestyle audits, informal tax management is no longer a viable option. Businesses and individuals must adapt to this new environment by seeking professional guidance, keeping meticulous records, and ensuring all declarations are entirely accurate.
Review your current tax positions and payroll systems now. Taking proactive steps today will protect your wealth and safeguard your business against future regulatory scrutiny.