Tax Deductions South Africa: What You Could Be Missing on Your 2026 Tax Return

Nobody wants to pay more tax than they legally need to.

But every filing season, taxpayers miss deductions because they don't know what they can claim, don't have the supporting documents, or assume SARS has already included everything.

September is a particularly good time to check.

The 2026 tax filing season is already underway, and non-provisional individual taxpayers have until 23 October 2026 to file. Provisional individual taxpayers have until 22 January 2027.

Before you submit your return, or accept a SARS assessment, it is worth understanding which tax deductions in South Africa may apply to you.

Not every deduction applies to every taxpayer. But knowing what to look for could prevent you from overlooking legitimate claims.

First: What Is a Tax Deduction?

A tax deduction generally reduces the amount of income on which tax is calculated, where the deduction is permitted under South African tax legislation.

That's different from a tax credit, which generally reduces the actual amount of tax payable.

The distinction matters because different expenses, contributions and circumstances receive different tax treatment.

The key principle is simple:

You can only claim deductions you are legally entitled to, and you need evidence to support them.

Why September Is a Good Time to Review Your Tax Position

September sits right in the middle of individual tax filing season.

By now:

• Auto assessments have been issued

• Filing for non-provisional taxpayers is open

• The October deadline is approaching

• Provisional taxpayers are also able to submit

• Trust filing opens on 19 September 2026

That gives you enough time to identify missing certificates or supporting documents before filing deadlines become urgent.

1. Retirement Fund Contributions

Retirement contributions are one of the most important areas to review.

If you've contributed to a retirement annuity or qualifying retirement fund, check that the contribution information reflected on your return matches your tax certificate.

SARS specifically reminded taxpayers during the 2026 filing season to compare retirement annuity certificates with what appears on their returns.

Don't assume the amount is correct merely because it has been pre-populated.

2. Qualifying Donations

Donations to certain approved Public Benefit Organisations may qualify for a deduction where the correct Section 18A documentation is available.

If you made qualifying donations during the year:

• Find your Section 18A certificate

• Check that the details are correct

• Keep the certificate with your supporting tax records

SARS has specifically highlighted Section 18A certificates when reminding taxpayers about claims during the 2026 filing season.

No proper certificate can mean no valid claim.

3. Business Travel Against a Travel Allowance

If you received a travel allowance from an employer or principal and used your private vehicle for business purposes, you may be able to claim an appropriate deduction on assessment.

But you'll need records.

SARS requires a travel logbook that records business travel, and taxpayers should maintain odometer readings and the required journey information.

Trying to reconstruct a year's worth of business trips after the fact is rarely a good idea.

4. Business Expenses for Sole Proprietors and Independent Professionals

If you earn genuine business income as a sole proprietor, freelancer or independent professional, certain expenses incurred in earning that income may potentially be deductible, subject to the applicable tax rules.

Examples can include legitimate business expenses such as:

• Accounting fees

• Certain software costs

• Business-related telecommunications

• Marketing costs

• Professional subscriptions

• Certain travel costs

• Office-related expenditure

• Other expenses genuinely incurred in producing business income

This is where proper bookkeeping becomes critical.

Internal link: Bookkeeping Services

A card transaction alone isn't always enough to explain why an expense was business-related.

Keep invoices and receipts organised.

Internal link: How to organize business receipts

5. Rental Property Expenses

Rental income is generally relevant to your tax return, but qualifying expenditure relating to the production of that rental income may also need to be considered.

Depending on the circumstances, this could include certain costs such as:

• Rates and taxes

• Levies

• Repairs and maintenance

• Agent's commission

• Insurance

• Other qualifying rental-related expenditure

The rules around capital improvements versus repairs, private use and other restrictions can be important.

This is an area where getting professional advice makes sense rather than simply claiming every cost associated with the property.

6. Medical Expenses and Medical Tax Credits

Medical expenditure is an area taxpayers often describe broadly as a deduction, although the South African tax treatment includes medical scheme fees tax credits and, in qualifying circumstances, additional medical expenses tax credits.

The calculation can depend on factors including:

• Medical aid contributions

• Number of dependants

• Qualifying medical expenditure

• Age

• Disability circumstances

For 2026, SARS introduced an easier medical aid selection process on the ITR12, but taxpayers should still review the underlying information carefully.

7. Home Office Expenses: Don't Assume You Qualify

Working from home does not automatically mean every home office cost can be deducted.

The requirements can be strict, particularly for employees.

The space generally needs to meet specific requirements and the nature of your employment and income matters.

Before claiming rent, utilities or other home costs as tax deductions, get advice about whether your circumstances genuinely qualify.

A questionable claim can create more trouble than the deduction is worth.

8. Wear and Tear on Qualifying Assets

Certain taxpayers may be entitled to claim wear-and-tear allowances on qualifying assets used in generating taxable income.

Depending on your circumstances, these could potentially involve items used for business or professional purposes.

The classification, cost, usage and tax treatment of the asset matter, so this isn't something to guess.

Your accountant can help determine what is allowable and how it should be calculated.

9. Expenses Related to Commission Income

Employees who earn commission and meet the applicable requirements can have a different deduction profile from ordinary salaried employees.

Depending on the nature of the income and expenses incurred in producing it, certain business-related expenditure may become relevant.

The rules are specific, so it's important to establish whether you actually qualify rather than applying general expense claims to a normal salary.

10. Professional and Income-Producing Expenses

The broad principle behind many deductions is that the expense must have the required connection to producing taxable income and must not be prohibited by the tax rules.

That is why two people with seemingly similar expenses may receive different tax treatment.

The question isn't:

Did I spend the money?

The question is:

Is this expense legally deductible in my specific tax circumstances?

What About Your SARS Auto Assessment?

This is particularly important.

SARS auto assessments rely heavily on third-party information.

That makes them efficient, but taxpayers still need to review whether all relevant income and deductions have been correctly reflected. SARS has expressly reminded taxpayers to check deductions before accepting their assessment.

Internal link: SARS Auto Assessment 2026

Never assume that because SARS produced the assessment, there can be nothing missing.

Documents You Should Gather Before Filing

Depending on your circumstances, collect:

• IRP5/IT3(a) certificates

• Retirement contribution certificates

• Medical scheme tax certificates

• Section 18A donation certificates

• Travel logbook

• Investment tax certificates

• Business income and expense records

• Rental schedules and supporting invoices

• Receipts and tax invoices

• Any other evidence supporting deductions claimed

SARS can request supporting documentation during verification.

Good records make that process considerably easier.

Common Tax Deduction Mistakes

Claiming Personal Expenses as Business Expenses

Just because something was paid from a business account doesn't automatically make it tax deductible.

Claiming Without Documentation

If SARS asks you to support a claim, you need the records.

Assuming Everything Is Already on eFiling

Third-party information has improved significantly, but you remain responsible for ensuring the return is complete and correct.

Missing Legitimate Claims

The opposite problem is being too cautious because you don't know what's available.

This can result in taxpayers paying more tax than legally necessary.

Waiting Until the Deadline

Missing certificates are much easier to resolve in September than two days before the filing deadline.

Tax Planning Is Different From Tax Avoidance

Good tax planning means understanding the rules and structuring your financial affairs lawfully and efficiently.

It does not mean inventing expenses or trying to disguise personal expenditure.

For business owners in particular, tax planning should be connected with:

• Bookkeeping

• Remuneration

• Provisional tax

• Cash flow

• Company structure

• Financial planning

Internal link: Provisional Tax in South Africa

That is one of the reasons ongoing accounting support can deliver far more value than simply preparing a return once a year.

How RAEs Can Help

RAEs can help you understand which deductions are relevant to your circumstances and ensure your return is based on accurate, properly supported information.

For individuals with businesses, investment income, rental properties or multiple income streams, our team can also help bring your personal and business tax affairs together.

We focus on getting the tax right while helping you maintain the underlying records and financial structure needed to make future filing seasons easier.

Internal link: Tax and Accounting Services

Final Thoughts

The aim isn't to claim as much as possible.

It's to claim correctly.

Every legitimate deduction should be supported. Every source of income should be declared. Every figure should make sense.

That's how you minimise tax legally without creating unnecessary risk with SARS.

If you're unsure whether you've missed deductions on your 2026 return, September is the right time to find out.

Before You Submit Your 2026 Tax Return, Let RAEs Check It

A second look can identify missing information, unsupported claims and deductions you may not have considered.

Speak to RAEs about your 2026 individual tax return.

FAQs: Tax Deductions South Africa

• What can I claim as a tax deduction in South Africa?

  It depends on your circumstances and source of income. Potentially relevant areas can include qualifying retirement contributions, donations, certain business or rental expenses and qualifying travel expenditure, subject to the applicable rules.

• Can I claim business expenses on my personal tax return?

  If you genuinely carry on a business or earn qualifying business income, certain expenses incurred in producing that income may be deductible. Ordinary employees generally cannot simply claim all expenses associated with working.

• Can I claim my retirement annuity contributions?

  Qualifying retirement fund contributions can affect your tax calculation. Always check the tax certificate against the information reflected on your return. SARS specifically highlighted this check for the 2026 Filing Season.

• Can I claim donations on my tax return?

  Certain donations to approved Public Benefit Organisations can qualify where you hold a valid Section 18A certificate.

• Can I claim business travel?

  If you receive a qualifying travel allowance and use your private vehicle for business travel, a deduction may be available subject to the rules and appropriate records. SARS requires a logbook for business travel claims against a travel allowance.

• Does SARS automatically include all my deductions?

  No. Although SARS pre-populates more information from third parties, taxpayers remain responsible for ensuring their returns are complete and correct.

• When is the individual tax return deadline for 2026?

  Non-provisional individual taxpayers must file by 23 October 2026, while provisional taxpayers have until 22 January 2027.

• Should I use a tax practitioner?

  Professional help can be particularly useful where you have business income, rental properties, investments, multiple income sources or deductions that aren't straightforward.