You see R500,000 in your bank account. Your brain says it is yours to spend. It is not. Most of it is already allocated to things you forgot about. That gap, what you see versus what is actually available, is how growing businesses die. The fix is a system, not willpower.
You have revenue coming in. Ads are working. Customers are buying. This should be the moment you relax.
Instead, money stress gets worse.
More cash in means more chaos out if you have no system. You see R500,000 and think about a new retail location, a bigger team, a bulk purchase order. Then payroll hits. VAT is due. A supplier wants a deposit. Suddenly 80% of that R500,000 was already spoken for.
Or the opposite: you are too scared to spend anything because you cannot tell what is safe and what is committed. Growth stalls while the cash sits doing nothing.
Both kill your business. Just at different speeds.
One account is the enemy
Most founders run everything from one bank account. Money in, money out, mental tracking. That works at R200,000 a month. It breaks at R2 million a month because the volume of obligations becomes impossible to manage in your head.
The fix is separation. Four bank accounts, each with one purpose. When money is physically split by purpose, decisions become obvious instead of guesses.
Chapter 6 — Cash Management System
The 4-Account Money System
VAT
Tax
Cost of Goods & Growth
Operating Expenses & Growth
Allocate every Monday morning (10 min). Review your 13-week cash plan every Friday (15 min). Separate first. Spend second.
How the four accounts work
Account 1: VAT (10% of revenue)
Every time a sale comes in, transfer 10% to a separate VAT account. Not 15%, because you are claiming back input VAT on most business expenses. Your actual liability after offsetting credits lands closer to 10% of revenue for most eCommerce businesses.
The key word is immediately. Same day the money arrives. Or at the latest, every Monday for the previous week. The discipline keeps VAT money out of your operating account long enough that you stop thinking of it as yours. When SARS calls, the money is already sitting there waiting. No panic. No scramble.
Account 2: Tax (20% of profit)
This one only switches on once you are profitable. If you are breaking even, transfer nothing. The moment you start making profit, start setting aside 20% of it monthly.
Here is the maths. You did R1 million last month at 15% profit before tax. That is R150,000 profit. Twenty percent of R150,000 is R30,000. Transfer R30,000 to the tax account. It is an estimate, not a perfect calculation. Your accountant will reconcile quarterly. The goal is making sure you are consistently building a buffer so tax bills never surprise you.
South Africa's corporate tax rate is 27%, but after legitimate deductions your effective rate is usually 18% to 22%. The 20% estimate lands in the middle. Safe but not wasteful.
Account 3: Cost of Goods and Growth
This funds inventory you just sold plus inventory you need for growth. Formula: last month's COGS plus your 90-day average growth rate applied to that number. So if COGS was R200,000 and you are growing 15% per month, allocate R230,000. That sits ready for your next purchase order, sized for both restock and growth.
Account 4: Operating Expenses and Growth
Salaries, software, rent, marketing, everything else. Inside this account, think in two buckets.
First: a 60-day safety reserve. Add fixed costs you cannot cut without breaking the business. Multiply by two. Build it, then move it to savings and do not touch it unless it is a genuine emergency.
Second: 30 days of working capital for normal operations. Anything above both of those is surplus. Surplus is your growth budget. New marketing tests, a planned hire, a product experiment. That is the only money you spend on anything non-essential.
Remember this one line
Separate first. Spend second. When you see your bank balance, you are not seeing available money. You are seeing allocated money with a small surplus hiding inside it. The four-account system makes that surplus visible, every single week.
The weekly routine that makes it stick
Setting up the accounts is the structure. The weekly routine is the discipline.
Every Monday morning, allocate last week's revenue across the four accounts. Ten minutes. Transfer 10% to VAT. Estimate profit and move 20% to tax. Calculate COGS plus growth buffer. Whatever is left builds your reserves or sits as surplus.
Every Friday, open your 13-week cash plan and check if you are on track. Cash gaps forming in five or eight weeks? A supplier payment, a tax bill, a seasonal dip? You can see them coming. You have time to fix them calmly instead of discovering them the morning they hit.
Ten minutes on Monday. Fifteen on Friday. That trade prevents finding out on a Tuesday that payroll on Friday will not clear because a supplier auto-debit hits Thursday.
The purchase order timing trap
This is where more growing businesses die than almost anywhere else.
You see R300,000 in your COGS account. Your supplier offers better pricing on a R250,000 order. Better margin. Smarter move. You pay a R125,000 deposit. Four weeks later the balance is due. Your COGS account is empty. The stock arrives, takes two weeks to list, then six weeks to sell through. Cash from those sales lands seven weeks after arrival.
But payroll is due in three.
You run an emergency discount to move stock fast, which destroys the margin you were chasing in the first place. Or you pause marketing, which slows sales and makes the gap worse.
The rule: no purchase order gets placed without mapping it on your 13-week cash plan first. If it creates a crunch, split the order, negotiate extended supplier terms, or wait. Better pricing only helps if you can fund it without strangling the business.
How to pay yourself without breaking growth
You do not take distributions until the foundation is solid.
First build your 60-day reserve. Then confirm the COGS account can cover your next purchase order. Only then do you start paying yourself. And when you do, use a formula: any surplus beyond reserves and working capital splits between reinvestment and owner distributions at a ratio you choose. 80/20 if you are growing hard. 50/50 if you are at comfortable scale. Pick one. Stick to it. Changing it monthly based on how the month felt is how you destabilise cash flow.
Also: if you have R15,000 a month in expenses you pay personally after tax, but those could legally run through the business, you are overpaying SARS. At a 30% effective personal rate, you need to earn R21,500 to keep R15,000. Run the same amount through the business and you keep R6,500 more every month. That is R78,000 a year from one structural fix. Talk to a good accountant.
Get a real accountant
Most founders find the cheapest accountant they can, hand over year-end statements, and hope it gets filed. That accountant is not hunting for deductions. They are filing what they received and moving on.
A good accountant costs two to three times more. They save you ten times their fee through proactive deductions, smarter VAT claims, and income timing that smooths tax bills across quarters. One question to ask when evaluating: how do you find deductions and optimise structures, and can you give me examples? If they cannot answer with specifics, keep looking.
The next lesson covers building a team that can execute all of this without you being the bottleneck in every call, every decision, every fire.
Want to get your numbers right?
We help SA founders set up systems that make cash management automatic, not a monthly panic. If you want a team that has done this 600 times to look at yours, that is what we do.
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