When preparing your provisional tax estimate, one of the most important questions is:

What income actually needs to be included?

For many taxpayers, the answer is more complicated than simply looking at their salary or business turnover.

You might earn a salary while also renting out a property, doing freelance work, earning interest, receiving investment income or running a small side business.

SARS ultimately considers your broader tax position.

Understanding which income streams may be taxable can therefore help you prepare a more accurate provisional tax estimate and avoid an unexpected tax bill later.

Start With the Bigger Picture

South African residents are generally taxed on their worldwide income, subject to applicable exemptions, exclusions and double-tax agreements.

This means taxable income is not necessarily limited to money earned from your main job or business.

Depending on your circumstances, you may need to consider income from:

• Employment
• Business activities
• Freelance work
• Consulting
• Rental property
• Interest
• Investments
• Foreign sources
• Capital gains
• Other income

Different types of income can receive different tax treatment, so they should not simply be combined without considering the applicable rules.

Salary and Employment Income

For employees, remuneration is generally subject to PAYE.

Your employer calculates employees’ tax and pays it to SARS on your behalf.

This can create the impression that:

“My employer handles my tax, so I don’t need to worry about anything else.”

That may be true if your salary is effectively your only taxable income.

But if you earn money from other sources, PAYE deducted from your salary may not cover the tax liability created by those additional income streams.

Freelance and Consulting Income

Freelance and consulting income is particularly important for provisional tax.

Consider someone who works full-time but also provides consulting services after hours.

During the year they earn:

Salary: R600,000

Freelance income: R180,000

Their employer may deduct PAYE correctly from the R600,000 salary.

But the employer does not necessarily know about the additional R180,000.

That freelance income therefore needs to be considered separately when determining the taxpayer’s overall taxable-income position.

Depending on the circumstances, this can bring provisional tax into the picture.

Don’t Confuse Freelance Turnover With Taxable Profit

If you invoice clients R180,000 during the year, that does not necessarily mean your taxable freelance income is R180,000.

You may have legitimate expenses incurred in producing that income.

For example:

Freelance income: R180,000

Qualifying expenses: R45,000

Potential net amount before further tax adjustments: R135,000

The deductibility of each expense still needs to be considered under the applicable tax rules.

Private expenses should not simply be deducted because they were paid from the same bank account.

Side Businesses

The same principle applies to a side business.

Perhaps you:

• Sell products online
• Provide design services
• Repair equipment
• Run a small catering business
• Build websites
• Offer tutoring
• Provide photography services
• Sell handmade products
• Consult in your professional field

The fact that the activity is not your main occupation does not automatically make the income tax-free.

If you are carrying on a business or trade, the income and qualifying expenses need to be considered when determining your tax position.

Rental Income

Rental income is another common source of additional taxable income.

If you rent out residential or commercial property, the rental received generally needs to be considered for income-tax purposes.

But once again, gross rent is not necessarily the taxable amount.

Qualifying expenses incurred in producing the rental income may potentially be deductible.

Depending on the circumstances, these could include items such as:

• Rates and taxes
• Levies
• Rental-agent fees
• Insurance
• Repairs
• Security
• Advertising
• Interest on qualifying finance
• Other expenses directly related to earning the rental income

The exact treatment depends on the nature of the expenditure and the circumstances.

Repairs vs. Improvements

This distinction is particularly important for rental properties.

A repair that restores something to its previous condition can potentially receive different tax treatment from an improvement that creates or upgrades an asset.

For example:

Repairing a damaged section of an existing roof

may be treated differently from:

Adding an entirely new room to the property.

Do not assume that every amount spent on a rental property can immediately be deducted from rental income.

Capital improvements generally need to be considered separately.

What If My Rental Property Makes a Loss?

A rental property can sometimes produce a tax loss after qualifying expenses.

However, this does not mean that every rental loss can automatically be used without restriction to reduce other taxable income.

South Africa has provisions that can restrict certain losses, including the ring-fencing of assessed losses from certain trades in applicable circumstances.

The taxpayer’s specific situation therefore needs to be considered.

We will deal with loss utilisation separately in “Why You Shouldn’t Offset Business Losses Incorrectly on Your Return.”

Interest Income

Interest from ordinary savings and investments can also affect taxable income.

For the 2027 tax year, qualifying South African-source interest received by natural persons is exempt up to:

Under age 65: R23,800 per year

Age 65 and older: R34,500 per year

Interest above the applicable exemption may affect taxable income.

This can become important for people with substantial cash savings, fixed deposits or money-market investments.

Interest From Several Banks

The interest exemption applies across your qualifying interest income.

It is not a separate exemption for each account or financial institution.

For example, an individual under 65 might receive:

Bank A interest: R15,000

Bank B interest: R12,000

Investment account: R8,000

Total interest:

R35,000

The taxpayer cannot apply a separate R23,800 exemption to each account.

The combined interest position needs to be considered.

What About Dividends?

Dividends should not simply be treated like interest.

South African dividends received by individuals are generally exempt from normal income tax, while dividends tax is ordinarily withheld separately.

This means a portfolio containing both interest-bearing investments and dividend-paying shares can have different tax treatments within the same investment account.

When preparing a provisional tax estimate, identify the type of investment return rather than simply entering one total labelled “investment income.”

Tax-Free Investments

Returns generated within a qualifying South African Tax-Free Investment receive specific tax treatment.

Interest, dividends and capital gains generated within an approved tax-free investment are generally free from income tax, dividends tax and capital gains tax.

This is different from holding the same investment in an ordinary taxable account.

Do not confuse the tax-free investment contribution limits with the normal annual interest exemption.

They are separate tax concepts.

Foreign Income

South African tax residents generally need to consider income earned outside South Africa as part of their worldwide-income position, subject to applicable exemptions and double-tax agreements.

Foreign income might include:

• Foreign employment income
• Offshore interest
• Foreign dividends
• Rental income from overseas property
• Foreign consulting income
• Offshore investment returns

Foreign tax may already have been paid on some of this income.

Depending on the circumstances, foreign tax credits or treaty provisions may become relevant.

Foreign income should therefore not simply be ignored because the money was earned or retained outside South Africa.

What About Money Earned Through Online Platforms?

The fact that income arrives through an online platform does not automatically change its tax nature.

Examples could include income from:

• International freelance platforms
• Online marketplaces
• Content platforms
• App stores
• Digital consulting
• Online courses
• Foreign customers
• E-commerce stores

The underlying activity and income still need to be considered for South African tax purposes.

Receiving payment into PayPal, a foreign bank account or another payment platform does not automatically make the income exempt from South African tax.

Capital Gains

Capital gains are another area that can materially affect a provisional tax estimate.

You may realise a capital gain when disposing of assets such as:

• Shares
• Investment property
• Cryptocurrency
• Business assets
• Other investments

Capital gains are not necessarily taxed in exactly the same manner as ordinary income.

The capital gains tax rules determine what portion of the net capital gain ultimately forms part of taxable income.

For provisional tax purposes, significant asset disposals during the year should therefore be considered.

Selling Your Home

A disposal of a primary residence can have specific capital-gains-tax treatment, including an applicable primary-residence exclusion where the requirements are met.

This means you should not automatically assume:

“I sold my house for more than I paid, so the entire profit is taxable.”

Nor should you automatically assume that every gain on a property is exempt.

The use of the property, nature of the disposal and applicable exclusions all matter.

Cryptocurrency

Cryptocurrency transactions can also have tax consequences.

SARS does not regard cryptocurrency as currency for income-tax purposes; it is treated as an asset of an intangible nature.

Depending on the facts and the taxpayer’s intention, gains may potentially be treated as revenue or capital in nature.

This distinction can materially affect the tax calculation.

If you actively trade cryptocurrency or realised significant gains during the year, those transactions should be considered when preparing your provisional tax estimate.

What About Money From Family?

Not every amount deposited into your bank account is taxable income.

For example, a genuine loan from a family member is not automatically business income simply because money entered your account.

Likewise, gifts and donations have their own tax rules and should not simply be classified as ordinary trading income.

The nature of the transaction matters.

This is another reason good accounting records should identify what a receipt actually represents rather than treating every bank deposit as sales.

Business Loans Are Not Turnover

The same applies to business finance.

Suppose your company receives:

R500,000 bank loan

That does not mean the business suddenly has R500,000 of taxable sales.

It has received borrowed funds together with an obligation to repay the lender.

Similarly, repayment of the capital portion of the loan is not automatically an ordinary business expense.

Interest and other finance costs may have their own tax treatment.

VAT Is a Separate Issue

VAT and income tax should also not be confused.

A VAT-registered business collects and accounts for VAT under the VAT system.

Income tax and provisional tax deal with taxable income.

Although the accounting information interacts, they are different taxes with different calculations and filing obligations.

Do not assume that because VAT has been paid to SARS, the income-tax liability on the underlying business profit has also been dealt with.

A Practical Example: Several Income Streams

Consider an individual who has:

Salary: R650,000

Freelance income: R120,000

Rental income: R144,000

Qualifying rental expenses: R55,000

South African interest: R32,000

Share portfolio: Local dividends plus a capital gain from shares sold during the year

The tax calculation needs to consider each component according to its own rules.

PAYE may already have been deducted from the salary.

Freelance expenses may need to be considered.

Rental income needs its own calculation.

The interest exemption may apply.

Dividends receive different treatment.

The capital gain needs to be calculated.

This is considerably more complicated than simply adding every amount received into one total.

It also illustrates why people with several income streams can benefit from reviewing their provisional tax position during the year.

Keep Records for Every Income Stream

Where possible, maintain separate supporting records for:

Employment

IRP5/IT3(a) certificates and payslips.

Freelance or business income

Invoices, expenses and accounting records.

Rental property

Rental statements, leases and expense records.

Investments

IT3(b), IT3(c) and other relevant certificates and statements.

Foreign income

Statements, tax certificates and evidence of foreign tax paid.

Capital disposals

Purchase records, sale documents and supporting costs.

Good records make both provisional and annual tax calculations considerably easier.

Don’t Wait Until Tax Season to Add Everything Up

If you have multiple income streams, waiting until your annual tax return is due can create an unpleasant surprise.

By then, the income has already been earned and provisional tax deadlines may have passed.

Instead, review your total expected taxable income during the year.

That allows you to estimate the tax liability and make provision for SARS before the final assessment arrives.

Need Help Understanding Which Income Is Taxable?

Tax becomes more complicated when income comes from several sources and each source has different deductions, exemptions or tax treatment.

Boatwright Consulting can assist with reviewing your salary, business, freelance, rental and investment income and determining how these amounts affect your provisional and annual tax position.

Contact Boatwright Consulting if you earn income from several sources and would like to understand what needs to be included in your taxable-income calculation and whether additional provisional tax should be paid.

This article provides general information and should not be regarded as tax advice specific to your individual circumstances.