South African Tax Law for Individuals: Key Concepts

You do not need to read tax legislation every day to understand your return. But you do need the main concepts before you can use them confidently - tax year, taxable income, deductions, rebates, PAYE, provisional tax, and how SARS assessments work (SARS: Individuals, 2024). Getting these concepts right prevents the most common filing mistakes.

Key Takeaways

The South African tax year runs from 1 March to the last day of February - always use the correct year’s tables and rules.

PAYE is a credit applied against your final tax liability on the ITR12, not a final settlement.

Deductions reduce taxable income; rebates reduce the tax amount - they operate at different stages of the calculation.

SARS generally has three years to issue an additional assessment, and five years in cases of fraud or negligence.

The tax year

For most individuals, the South African tax year (year of assessment) runs from 1 March to the last day of February (Income Tax Act 58 of 1962, section 1). A return filed in October 2026 covers income from 1 March 2025 to 28 February 2026 - the 2025/26 year of assessment. Using the tax rate table or rebate amounts from the wrong year is one of the most common filing errors.

From gross income to taxable income

The calculation follows a specific path (SARS: Income Tax Rates):

Gross income: everything received or accrued before any exclusions - salary, freelance fees, rental income, dividends, foreign income.
Exemptions: specific amounts excluded from gross income by statute - certain foreign interest, certain dividends received from South African companies (within exempt categories), etc.
Income: gross income minus exemptions.
Deductions: allowable expenses subtracted from income - retirement fund contributions, home office costs, business expenses.
Taxable income: the amount to which the rate table is applied.

Tax rates for 2024/2025 range from 18% on the first R237,100 of taxable income to 45% on income above R1,817,000. Rebates are applied to the calculated tax amount, not to taxable income.

PAYE

PAYE (Pay As You Earn) is employee tax withheld by an employer each month using SARS withholding tables and remitted to SARS via the EMP201 (SARS: Employees’ Tax). The employer issues an IRP5 at year-end confirming the total remuneration and PAYE withheld.

PAYE is a credit against the final income tax liability - not the final settlement. The ITR12 return reconciles total income, deductions, and credits (including PAYE) against the tax calculated on taxable income:

If PAYE withheld exceeds the final tax: SARS refunds the difference.
If PAYE withheld is less than the final tax: a balance is due on assessment.

Employees whose income and deductions are fully reflected in their IRP5 may qualify for auto-assessment - but this must still be checked, not automatically accepted.

Provisional tax

Provisional tax applies to individuals who earn income not fully subject to PAYE - freelancers, landlords, investors, and some pensioners (SARS: Provisional Tax). Provisional taxpayers file IRP6 returns in August (first period) and February (second period) and pay estimated tax in advance. The final reconciliation happens when the annual ITR12 return is assessed.

Rebates

Rebates reduce the tax amount calculated after applying rates - they do not reduce taxable income. For 2024/2025:

Primary rebate (all taxpayers under 65): R17,235.
Secondary rebate (taxpayers aged 65 to 74): an additional R9,444.
Tertiary rebate (taxpayers aged 75 and over): an additional R3,145.

These rebates effectively mean individuals pay no income tax until taxable income exceeds approximately R95,750 (2024/2025). Always use rebate figures from SARS for the current year of assessment - they are updated through the annual Budget.

The SARS assessment

After filing, SARS issues an assessment showing the tax calculation. The assessment may (SARS: Assessments):

Confirm the return as filed.
Show additional tax due.
Show a refund owed to the taxpayer.
Request supporting documents before finalising.

Check the assessment against your own source documents. Pre-populated data from third parties (employers, medical schemes, fund providers) can contain errors that flow through to your assessment.

SARS generally has three years from the date of assessment to issue a revised assessment in normal cases, and five years where fraud, negligent misrepresentation, or failure to submit a return is involved. This is the reason the five-year record retention obligation exists.

Frequently Asked Questions

What is the South African tax year and when does it run?

For individuals, the tax year runs from 1 March to the last day of February. A return filed in October 2026 covers the period 1 March 2025 to 28 February 2026. Using the wrong year’s tables or rebate figures is one of the most frequent filing errors.

What is the difference between a deduction and a rebate?

A deduction reduces your taxable income - the amount to which tax rates are applied. A rebate reduces the actual tax amount calculated after rates are applied. Retirement fund contributions are a deduction (they lower the taxable income base). The primary rebate and the medical tax credit are applied after the tax is calculated (they reduce the tax amount directly). They operate at different stages of the calculation.

Is PAYE a final settlement of my income tax?

No. PAYE is an advance credit against your final income tax liability. The ITR12 return reconciles your actual income, deductions, and credits against the tax calculated for the year. If PAYE exceeded the final liability, SARS refunds the difference. If it fell short, the balance is due on assessment.

How long does SARS have to audit a return?

SARS generally has three years from the date of assessment to issue a revised assessment in normal cases, and five years where fraud, negligence, or failure to file is involved. The five-year record retention obligation aligns with this audit period.

Sources

SARS: Individual Taxpayers - comprehensive guidance on income tax, deductions, rebates, and assessments for South African individuals
SARS: Income Tax Rates - current tax rate tables, rebate amounts, and tax-free thresholds
Income Tax Act 58 of 1962, section 1 - definition of year of assessment and taxable income

This is a general educational overview. South African tax law changes through annual budgets and legislative updates. Verify current rules, rates, and processes with SARS or a qualified professional before filing.