Smart Tax/VAT Planning for Small Businesses
Quick Answer
Good tax planning means treating tax obligations as part of your business’s normal cash flow—not as an unexpected expense when SARS payment deadlines arrive.
For a VAT-registered business, this means monitoring output VAT charged on taxable supplies and allowable input VAT, rather than simply assuming that 15% of every bank deposit belongs to SARS.
For income tax, businesses should regularly estimate their taxable profit, not merely their turnover, and consider their provisional tax obligations where applicable.
A dedicated tax bank account can be a useful cash-flow tool, but the amount transferred into it should be based on realistic tax calculations rather than an arbitrary percentage.
Why Should Small Businesses Plan for Tax Throughout the Year?
One of the most common cash-flow problems in a small business occurs when money needed for SARS has already been spent on operating expenses.
Tax planning helps a business anticipate liabilities such as:
- VAT.
- Provisional income tax.
- PAYE, UIF and SDL where applicable.
- Income tax arising on assessment.
The objective isn’t necessarily to have the exact amount sitting in a separate bank account every day.
The objective is to know what you are likely to owe, when you are likely to owe it, and whether the business will have sufficient cash available to pay it.
Should a Business Have a Separate Bank Account for Tax?
A dedicated tax reserve account can be a useful cash-management tool.
It can help you:
- Separate money intended for tax from normal operating cash.
- Reduce the temptation to spend money needed for SARS.
- Prepare for upcoming payment deadlines.
- Identify potential cash-flow shortages earlier.
- Make tax payments less disruptive to normal business operations.
However, simply moving money into another bank account does not tell you how much tax you actually owe.
Your accounting records still need to determine the liability.
How Should a VAT-Registered Business Save for VAT?
This is where businesses need to be careful.
South Africa’s standard VAT rate is 15%, but that does not mean you should automatically calculate your VAT reserve as 15% of every VAT-inclusive payment received.
Real Example: The VAT on a R115 Sale
Suppose your business charges:
Price excluding VAT: R100
VAT at 15%: R15
Customer pays: R115
The output VAT is R15.
If you’re working backwards from the VAT-inclusive amount:
R115 × 15/115 = R15
It would be incorrect to calculate:
R115 × 15% = R17.25
So if your prices are VAT-inclusive, remember that the VAT component is generally calculated using 15/115, not 15%.
Does All the VAT You Collect Belong to SARS?
Not necessarily.
A VAT vendor generally calculates the VAT payable by comparing output tax with qualifying input tax.
SARS describes the basic calculation as the difference between output tax and deductible input tax.
Real Example: Output VAT Less Input VAT
Suppose during a VAT period your business has:
Taxable sales excluding VAT: R230,000
Output VAT:
R230,000 × 15% = R34,500
During the same period, assume the business incurs qualifying expenses on which it can deduct:
Input VAT: R12,000
The simplified VAT position is:
Output VAT: R34,500
Less allowable input VAT: R12,000
Estimated VAT payable: R22,500
So although the business collected R34,500 of output VAT, its VAT liability in this simplified example is R22,500.
This is why keeping your accounting records up to date is far more accurate than simply transferring an arbitrary percentage of turnover into a tax account.
Be Careful: Cash in the Bank Isn’t Always the Same as Your VAT Liability
Another important cash-flow issue is that most VAT vendors account for VAT on the invoice basis.
Under the general invoice-basis rules, VAT can become reportable based on the applicable time-of-supply rules even where the customer has not yet paid you. SARS explains that the general time of supply is usually the earlier of issuing an invoice or receiving payment.
Example
Suppose you issue a VAT invoice for:
Amount excluding VAT: R100,000
VAT: R15,000
Total invoice: R115,000
Your customer is allowed 60 days to pay.
Depending on the applicable VAT rules and your tax period, you may need to account for that R15,000 output VAT before you’ve actually collected the R115,000 from your customer.
That’s why VAT management isn’t only a tax issue.
It’s also a debtor and cash-flow management issue.
When Is VAT Due to SARS?
A VAT vendor must submit a VAT201 for each applicable tax period.
For vendors using eFiling and making payment through the applicable eFiling process, the VAT201 and payment can generally be made by the last business day of the following month. Other payment methods may have an earlier deadline, including the 25th.
Businesses should therefore work according to their actual VAT category and payment method rather than assuming every business has the same deadline.
What About Income Tax?
VAT and income tax should not be confused.
VAT is generally based on taxable supplies and the relationship between output and allowable input tax.
Income tax is generally concerned with taxable income or profit, after applying the relevant tax rules.
Example: Turnover Is Not Taxable Profit
Suppose a business earns:
Revenue: R1,000,000
and has:
Qualifying deductible expenses: R650,000
Simplified taxable profit before other tax adjustments:
R1,000,000 − R650,000 = R350,000
You would not ordinarily estimate the business’s income tax simply by applying an income tax rate to the R1 million turnover.
You first need to determine the business’s taxable income under the applicable tax rules.
What Is Provisional Tax?
Provisional tax is not a separate tax.
It is a mechanism for paying income tax in advance based on estimated taxable income, helping taxpayers spread their income tax liability over the year.
Businesses that are provisional taxpayers generally make at least two provisional tax calculations and payments during their year of assessment.
For a business with a February year-end, the first provisional payment is generally due six months into the year and the second at year-end. A third or top-up payment may be made where appropriate.
The exact dates depend on the taxpayer’s year of assessment.
How Much Should You Put Into Your Tax Account Each Month?
There is no single percentage that works for every small business.
A business’s tax reserve should consider:
VAT
Estimated output VAT less allowable input VAT, taking account of the business’s VAT accounting basis and tax period.
Income tax
Estimated taxable profit and the tax rules applicable to the business.
Payroll taxes
PAYE, UIF and SDL where applicable should also be monitored separately.
A business with high expenses and significant input VAT could have a very different tax position from another business with exactly the same turnover.
A Better Approach Than “Save 20% of Everything”
Rather than choosing an arbitrary percentage, use your actual accounting information.
For example, at each monthly management review:
- Calculate your estimated VAT position.
- Review year-to-date profit.
- Estimate taxable income and provisional tax.
- Review PAYE/UIF/SDL liabilities where applicable.
- Compare estimated liabilities with the money already reserved.
- Transfer any shortfall into the tax reserve account.
That turns tax planning into a monthly financial-management process rather than a year-end emergency.
Can You Automate Tax Savings?
Yes—but I would automate the discipline, not blindly automate the tax calculation.
For example, you could schedule a monthly transfer based on an estimated tax reserve and then adjust it after reviewing your management accounts.
Accounting software can help you monitor:
- Sales.
- Expenses.
- VAT.
- Debtors.
- Creditors.
- Payroll.
- Profit and loss.
- Cash flow.
But the underlying transactions still need to be recorded and classified correctly.
Automation cannot compensate for inaccurate bookkeeping.
Why Monthly Accounting Matters
You shouldn’t discover your tax position only when a VAT201, IRP6 or annual tax return is due.
Monthly accounting gives you a much earlier view of:
- Profitability.
- Cash flow.
- VAT payable or refundable.
- Outstanding customers.
- Upcoming tax liabilities.
- Unusual expenditure.
- Changes in business performance.
It also allows you to make business decisions using current financial information rather than relying on your bank balance.
Your Bank Balance Is Not Your Profit
This deserves particular emphasis.
Seeing R300,000 in the business bank account does not mean the business has made R300,000 profit or that all R300,000 is available to spend.
Some of that money could relate to:
- VAT.
- Amounts owed to suppliers.
- Payroll obligations.
- PAYE/UIF/SDL.
- Loan repayments.
- Upcoming operating expenses.
- Income tax obligations.
Cash, profit and taxable income are related concepts, but they are not the same thing.
Practical Example: Building a Monthly Tax Reserve
Suppose a VAT-registered consulting business reviews its accounts at month-end.
Its accountant estimates:
VAT liability: R18,000
Current payroll liabilities: R12,000
Additional provisional tax reserve required: R20,000
Total amount that should currently be protected:
R50,000
The business has already reserved:
R35,000
Additional amount to transfer:
R15,000
This approach is far more useful than automatically putting, say, 20% of every customer payment into another account without checking the underlying liabilities.
Practical Tip from Eva Financial Solutions
Create a monthly tax dashboard.
At every month-end, know at least:
VAT: What would we owe if the VAT period ended today?
Income tax: What is our estimated year-to-date taxable profit?
Provisional tax: Are our previous estimates still reasonable?
Payroll: What PAYE, UIF and SDL must be paid?
Cash: Is the money available to meet these obligations?
If you can’t answer those questions reasonably quickly, your accounting records probably aren’t giving you enough information to manage the business proactively.
Frequently Asked Questions
Should I put VAT into a separate bank account?
You don’t have to use a separate bank account merely to hold VAT, but doing so can be a useful cash-flow discipline. Your accounting records must still determine the actual VAT liability.
Should I save 15% of every sale for VAT?
Not necessarily. If an amount includes VAT, the VAT component at the standard 15% rate is generally 15/115 of the VAT-inclusive amount. Your ultimate VAT liability also considers allowable input VAT.
If I invoice R115,000 including VAT, how much is VAT?
At the standard 15% VAT rate:
R115,000 × 15/115 = R15,000
The VAT-exclusive value is R100,000.
Do I pay all the VAT I collect to SARS?
Generally, a VAT vendor calculates output VAT and deducts qualifying input VAT. The difference determines whether VAT is payable or, in appropriate circumstances, refundable.
Can I claim VAT on every business expense?
No. An expense appearing in your business records does not automatically mean the VAT is deductible. The requirements for an input-tax deduction must be satisfied.
Can VAT be due before my customer pays me?
Yes, this can happen under the invoice basis, which generally applies to VAT vendors unless they qualify and have approval to account on another basis.
Is provisional tax an additional business tax?
No. Provisional tax is a method of paying income tax in advance based on estimated taxable income. The payments are ultimately credited against the normal tax liability.
Should I calculate income tax as a percentage of turnover?
Not generally. Income tax calculations ordinarily require you to determine taxable income after considering qualifying income, deductions and applicable tax adjustments.
How often should I review my tax reserve?
For many small businesses, a monthly review is a practical approach because it allows tax planning to form part of normal management reporting and cash-flow forecasting.
Final Thoughts
Good tax planning isn’t about moving a random percentage of every sale into a savings account.
It is about having accurate accounting records, understanding each tax liability and protecting enough cash to pay SARS when it becomes due.
VAT, provisional tax, income tax and payroll taxes operate differently. Treating them as separate liabilities—and reviewing them throughout the year—gives you a much clearer picture of what the business can genuinely afford to spend.
At Eva CFO t/a Eva Financial Solutions, we help small businesses with monthly accounting, VAT, provisional tax, payroll and management reporting so that tax obligations can be planned for rather than becoming last-minute surprises.
If your business regularly struggles to find cash when VAT or provisional tax becomes due, the solution may not simply be “save more.” It may be time to improve the way you forecast, monitor and manage your tax cash flow.
Disclaimer
This article provides general tax and financial information and should not be regarded as personalised tax or financial advice. VAT and income tax treatment depends on the nature of the transactions, the taxpayer’s circumstances and the legislation applicable to the relevant period.