South African tax education
Impact of the Global Minimum Tax on South African Businesses
What South African businesses should know about the Global Minimum Tax and why it mainly affects large multinational groups.
Last updated: 20 May 2026
- SARS says Global Minimum Tax registration opened on eFiling from 16 March 2026.
- The regime is aimed at large multinational enterprise groups, generally those above the EUR 750 million consolidated turnover threshold.
- Most local SMEs are outside the regime, but subsidiaries of large groups should check reporting and group instructions.
Who is most likely affected?
South African entities that form part of an in-scope multinational enterprise group.
Foreign inbound groups with South African constituent entities.
Domestic entities that must coordinate with an ultimate parent, tax team, or group reporting package.
Practical readiness checks
Identify whether the group is in scope under SARS guidance.
Confirm who owns registration, notification, return preparation, and payment processes.
Map legal entities, permanent establishments, joint ventures, and fiscal years.
Keep group tax calculations, safe-harbour analysis, and SARS correspondence.
What smaller businesses should do
Do not assume the regime applies merely because you trade internationally.
Check ownership: being acquired by or joining a large group can change the analysis.
Ask for written group guidance before answering SARS or investor questions.
Records to keep
- SARS notices, assessments, eFiling confirmations, and statements of account.
- Invoices, contracts, bank statements, payroll records, VAT reports, or calculations that support the position.
- A short note showing the tax year, rule checked, source used, and reason for the treatment.
FAQ
Does the Global Minimum Tax apply to ordinary small businesses?
Usually no, unless the business is part of an in-scope multinational group. Confirm the group position before deciding.
When did SARS eFiling registration open?
SARS announced that Global Minimum Tax registration functionality would open on 16 March 2026.
Can I rely on this guide for a final tax decision?
No. This guide is educational. Verify current SARS guidance and get professional advice where the amount is material or the facts are complex.
Official checks
Use these official or primary-source pages to verify the latest position before filing, registering, paying, or changing a tax treatment.
Source and disclaimer
This site provides general educational information for South African taxpayers. It is not tax, legal, accounting, or financial advice. Tax rules and SARS processes can change, so verify current requirements with SARS or a qualified professional before acting.