How Much Should a
South African Business
Spend on Marketing?

Why Most Budget Rules Fail

The oft-quoted rule — "spend 5–10% of revenue on marketing" — is a starting point, not a strategy. It originated from American B2B benchmarks and gets applied wholesale to South African SMEs selling tyres, running salons, or distributing FMCG goods. The contexts could not be more different.

The percentage-of-revenue model has one significant flaw: it is backwards. It ties your growth investment to your current size rather than your ambitions. A business doing R5 million a year and wanting to reach R20 million cannot afford to invest proportionally the same as a R50 million business coasting at steady state.

A better framework starts with three questions: What is your growth objective? What does a customer cost you to acquire today, and what are they worth? And which channels are proven versus speculative for your category?

The Benchmarks Worth Knowing

While acknowledging the limitations of blanket rules, there are useful starting-point ranges by business type. These are broad, but they reflect what we see working in practice across the South African market:

These percentages reflect total marketing investment — including agency fees, ad spend, content creation, and any tools or platforms. They are not just media budget.

For businesses in defence mode — established brands holding market share rather than growing — a lower floor of 3–7% is common. But "defence" should be a deliberate choice, not a default.

Business Stage Changes Everything

Early stage (start-up to R5m revenue): The challenge here is not having enough data to know what works. At this stage, spending should prioritise learning. Run small, tight experiments across two or three channels with clear objectives. Do not spread budget across six platforms hoping something sticks. Choose one or two channels where your audience demonstrably exists and where you can measure results cleanly.

Growth stage (R5m–R50m revenue): This is where under-investment is most commonly fatal. Businesses in this band often have working channels but they are cautious about scaling spend. The risk is that competitors with more aggressive growth ambitions take market share while you are being conservative. If your cost-per-acquisition is healthy and conversion rates are proven, this is the time to invest disproportionately.

Mature stage (R50m+ revenue): The focus shifts from acquisition efficiency to share of voice, retention, and defending existing customer relationships. The channel mix evolves accordingly — less aggressive paid acquisition, more brand, content and retention activity.

How to Allocate Across Channels

Once you have a total budget in mind, the allocation question is: where does it go? As a rough starting point for a South African business running a mixed digital strategy, here is a framework that reflects typical channel performance:

These are starting points, not prescriptions. A business that already ranks strongly for its core keywords should weight more towards paid social. A business with a strong email list and weak new acquisition should flip the weights.

Working Backwards from CAC

The most rigorous approach to budget-setting is to work from your unit economics rather than percentage benchmarks. The logic is straightforward: if you know what a customer is worth (LTV), and you know what an acceptable acquisition cost is (CAC), you can calculate how much budget is needed to generate a target number of new customers.

For example: a business with an average customer value of R15,000 and a gross margin of 40% has R6,000 of contribution margin per customer. If a CAC of R1,200 (20% of contribution margin) is acceptable, and the target is 50 new customers per month, the acquisition budget needed is R60,000 per month.

This approach requires clean data. You need to know your conversion rates, your average order values, and your customer retention patterns. If you do not have this data yet — which is common in earlier-stage businesses — you start with benchmark percentages and build the data as you go.

South Africa-Specific Considerations

A few factors make the South African market distinct from the global benchmarks you will find on most marketing blogs.

CPC and CPM costs are materially lower than in developed markets. Google Ads CPCs in competitive South African categories are often 60–80% lower than equivalent UK or US searches. This means your budget can go significantly further in terms of volume — but also that the bar for what constitutes a well-funded campaign is different. A R15,000/month Google Ads budget in South Africa can generate meaningful volume in most categories. In London, it would barely move the needle.

Connectivity and device penetration continue to shift the channel mix. Mobile-first audiences, WhatsApp-heavy communication patterns, and uneven internet access across geographies all affect where your budget should go. This is not a barrier — it is context that should inform your strategy.

Economic volatility creates budget pressure that does not exist in the same way in more stable markets. South African marketing budgets tend to be the first line item cut in a difficult quarter — which is often precisely the wrong response, since competitors pulling back creates opportunity.

A Practical Starting Point

If you are trying to set a marketing budget for the first time, or reset one that is not working, here is a simple three-step process:

• 1
  Anchor on revenue and growth targets. Take your current revenue and your 12-month growth target. The gap between those two numbers is what marketing needs to help close. Size your budget relative to that gap, not relative to current turnover alone.
• 2
  Audit what is already working. Before adding budget, understand what your existing spend is generating. Often the issue is not total budget but allocation — too much in channels that are not converting, not enough in channels that are.
• 3
  Set a 90-day experiment budget. Rather than committing to a full-year plan based on assumptions, allocate a 90-day test budget to validate which channels and messages work for your specific business. Build the annual plan from that data.