South Africans filing their taxes face 200% penalties, interest charges and criminal prosecution

Ahead of South Africa’s 2026 tax filing season, experts warned that failing to comply with filing requirements could result in steep penalties of up to 200%, monthly fines, interest charges and even criminal prosecution.

On 13 July 2026, filing season for individual taxpayers – excluding auto-assessed taxpayers – will officially open.

The South African Revenue Service (SARS), in an effort to enhance voluntary compliance, has released its Guide on Income Tax and the Individual (2025/26) on 15 June 2026.

While this guide is not an “official publication” as defined in section 1 of the Tax Administration Act, it clearly informs taxpayers of both their income tax obligations.

Tax Consulting SA’s partner and head of strategic engagement and compliance, Jashwin Baijoo, said the guide also includes the hefty consequences of failing to meet them.

Under the Income Tax Guide, taxpayers who do not meet their tax obligations face Understatement Penalties of up to 200% and criminal sanctions, among others.

Included in the guide are “need to know” items, such as when an individual is not required to submit an income tax return, and the taxman’s ability to use readily available third-party data to conduct an auto-assessment.

Personal income tax is payable to SARS and calculated based on the total taxable income earned by an individual for the full year of assessment from 01 March to 28/9 to February of the following year.

Where there is more certainty, a South African individual taxpayer may be auto-assessed. Where the situation is more complex, individuals may be required to submit an income tax return.

Per the guide, some examples of when an individual must submit a tax return for the 2026 year of assessment are:

• Receiving gross income from employment, from more than one employer, and which exceeds the tax threshold.
• Remuneration has been received or accrued to that person, in respect of services rendered outside of South Africa.
• Is a South African tax resident with a capital gain or loss exceeding R40,000.
• The individual was granted a taxable benefit in the form of a right of use of a motor vehicle, and/or receives any taxable allowance, and whose gross income exceeds the applicable tax threshold.
• SARS issues an income tax return or requests an individual to furnish an income tax return, regardless of the amount of income received or accrued.

The guide goes further, setting out requirements for the accuracy of information disclosed in the tax return submission process, but more importantly, the sanctions taxpayers may face when they falter.

Non-compliance can lead to criminal charges

Taking it from the ground up, Baijoo said there are some basics taxpayers need to know to stay on the right side in SARS’ War on Non-Compliance.

The guide clearly illustrates some examples of “criminal behaviour”, as contained in section 234 of the Tax Administration Act, which provides a laundry list of actions and inactions which constitute criminal offences.

This list includes acts committed due to a lack of tax literacy, such as retaining specific documentary items or issuing an incomplete document to SARS.

“On the flip side, failure to commit acts, such as the submission of a tax return or notifying SARS of a change in registered particulars, may also result in criminal charges being laid against you,” Baijoo said.

The listed offences range from the obvious, such as pretending to be a SARS official, to the seemingly unassuming, such as submitting erroneous statements to SARS.

However, Baijoo warned that all of these offences carry a liability, upon conviction, of a fine or a maximum prison sentence of two years.

Criminal offences relating to “tax evasion”, as contained in section 235 of the Tax Administration Act, carry a liability, upon conviction, of a fine or a maximum prison sentence of 5 years.

This includes making false statements on a tax return with the intent to evade tax or obtain an undue refund.

Penalties rack up quickly

As a starting point, Baijoo stressed that South Africans must meet their tax filing obligations to stay on the taxman’s good side.

“Where there is a failure to meet the filing season deadline, SARS will have no patience for late submission, and the monthly levying of administrative penalties will commence.”

He cautioned that these recurring penalties may reach up to R16,000 per outstanding tax return, per month.

“Whilst this may not sound like a heavy price to pay for your non-compliance, the monthly administrative penalties can quickly rack up, where multiple returns are outstanding for an extended period of time.”

“If this is not enough, there are also under-payment penalties which SARS impose, together with interest on both under-payment and late payment, ranging between 11.25% and 10.50% over the 2026 year of assessment.”

Baijoo warned that over time, this can snowball into someone’s original tax liability doubling or even tripling the amount owed to the revenue authority. “You are liable for the full amount.”

“Where you find yourself on the wrong side of the tax laws, it is imperative to ensure a timeous response or tax return submission to SARS, with all correct supporting documentation.”

If taxpayers fail at this first hurdle and make an incorrect disclosure, they will feel the walls closing in when those Estimate/Additional Assessments are raised, or Final Demands are issued for overdue tax debts.

“The nail in the coffin is always the Understatement Penalties, capping at a bank-breaking 200% of the capital taxes due.”

As a rule of thumb, once the penalties start rolling in, Baijoo said that any and all correspondence from SARS should be addressed holistically by a strong, multifaceted tax, legal, and financial team.

In instances of non-compliance with tax laws, legal professional privilege is a must, especially where SARS have suspicion of, or has already detected current/historic non-compliance, or “risk(s)”.

This will not only help safeguard taxpayers against hard times but also allow the proper legal steps to be taken, preventing SARS from implementing aggressive collection measures.