TGC Talks: Common Business Tax Mistakes and How to Avoid Them in the New Financial
A new financial year presents opportunity — but it also resets your compliance obligations. Many SMEs and start-ups repeat the same tax mistakes year after year. These errors often stem from poor bookkeeping, lack of proactive tax planning, or misunderstanding SARS requirements.
The result?
- Avoidable penalties
- Cash flow disruption
- Audit risk
- Overpayment of tax
Below are the most common business tax mistakes — and how to avoid them in the new financial year.
- Underestimating Provisional Tax
One of the most common errors is underestimating provisional tax payments. Provisional taxpayers must submit two mandatory provisional tax returns annually, with possible top-up payments.
Common mistakes are:
- Using outdated figures
- Guessing taxable income
- Ignoring seasonal fluctuations
- Forgetting capital gains
Underestimation can result in penalties and interest. Maintain updated management accounts and conduct quarterly tax forecasting.
- Late or Incorrect VAT Submissions (VAT201)
VAT errors frequently trigger SARS verification. Common issues can include:
- Claiming input VAT without valid tax invoices
- Incorrect zero-rating
- Missing deadlines
- Reconciling VAT to accounting records incorrectly
Avoid this through monthly VAT reconciliations, proper invoice retention and structured, preferably automated, accounting systems.
- Payroll Non-Compliance
Employers must comply with:
- PAYE
- UIF
- SDL (where applicable)
- EMP201 monthly submissions
- EMP501 reconciliations
Payroll errors can create employee disputes and SARS penalties. Implement structured payroll management to avoid risk.
- Failing to Separate Personal and Business Finances
Owner-managed businesses often mix personal and company expenses. Consequences include:
- Disallowed deductions
- Director loan complications
- Fringe benefit tax exposure
- Distorted financial statements
The solution is to always maintain separate bank accounts for personal and business finances, and structured bookkeeping.
- Ignoring CIPC Compliance
Tax compliance does not replace corporate compliance. Companies must submit annual returns to CIPC and maintain statutory records under the Companies Act. Failure may result in deregistration — even if your tax affairs are up to date.
- Claiming Incorrect Deductions
Overclaiming expenses may trigger SARS audits. Underclaiming expenses increases tax liability. Professional review ensures deductions are defensible.
Common problem areas include:
- Vehicle expenses
- Home office claims
- Entertainment costs
- Capital expenditure vs repairs
- Poor Record-Keeping
SARS may request supporting documentation during verification. Without valid invoices, payroll reports, bank statements, and/or asset registers – your claims may be disallowed. Maintain digital and physical record systems.
- Reactive, Not Proactive Tax Planning
The biggest mistake is treating tax as an annual event. Effective tax management requires monthly bookkeeping, quarterly tax forecasting, ongoing compliance monitoring, and strategic structuring reviews.
SMEs that treat compliance as strategy outperform those who treat it as admin. To avoid repeating costly tax mistakes:
- Implement monthly accounting processes
- Conduct quarterly tax reviews
- Ensure payroll compliance
- Keep documentation audit-ready
- Plan cash flow around tax obligations
Conclusion
Business tax mistakes are rarely caused by complexity — they are caused by neglect. In the new financial year, move from reactive compliance to structured financial management. At The Glass Castle, we provide monthly accounting retainers designed to:
- Maintain clean books year-round
- Monitor tax exposure proactively
- Ensure payroll compliance
- Keep your business audit-ready
- Optimise your tax position legally
Stop fixing problems after penalties arise. Book a consultation with us today, and build your new financial year on compliance confidence.
