Ad Spend
Paid MediaAlso: Advertising Spend · Media Spend · Paid Media Budget
Quick definition
Ad spend is the total amount paid to advertising platforms to run paid campaigns. It is distinct from total marketing budget, which includes production, tools and people costs. Ad spend is what leaves your bank account and goes to Google, Meta, TikTok and similar platforms in exchange for impressions and clicks.
How it varies across Australia
Australian SMBs typically allocate 5-12% of revenue to total marketing, with paid media accounting for 40-60% of that. B2B businesses tend to spend less on paid media relative to revenue than B2C businesses. Ecommerce businesses with proven ROAS can justify higher allocations, sometimes above 20% of revenue during growth phases.
See marketing budget benchmarks by industry →Revenue generated for every dollar of ad spend. A ROAS of 4 means you generated $4 in revenue for every $1 spent. But ROAS on its own ignores gross margin, which means a high ROAS can still lose money.
Total revenue divided by total marketing spend including all channels. A more honest view of paid media efficiency because it accounts for halo effects across channels.
How spend is distributed across a campaign period. Even daily spend is usually the goal. Uneven pacing can inflate CPCs at the end of a period when budget is rushing to clear.
What it actually means
Ad spend is what you pay the platforms. It doesn't include the time spent managing campaigns, the cost of creative production or the tools you use to track performance. When someone says 'we spent $50,000 on Google Ads last quarter,' that's ad spend.
The key metric derived from ad spend is ROAS: revenue divided by ad spend. A ROAS of 4 means you generated $4 for every $1 spent. Sounds good. But ROAS is a ratio, not a profit measure. If your gross margin is 25%, a ROAS of 4 means you broke even before accounting for any other costs. A ROAS of 4.1 means you made $0.025 profit per dollar spent. That's not a growth engine.
Profitable ad spend requires knowing your breakeven ROAS: the ROAS at which your contribution margin from sales exactly covers your ad spend. If your gross margin is 50%, your breakeven ROAS is 2.0. Everything above 2.0 generates contribution margin. Below 2.0, you're subsidising revenue.
For Australian businesses with smaller addressable markets, efficient ad spend management matters more than volume. A disciplined $50,000/month account at the right ROAS beats a sloppy $200,000/month account burning margin.
ROAS without gross margin data is vanity. You can lose money at a ROAS of 5 if your margins are thin enough.
How to calculate it
ROAS = Revenue ÷ Ad Spend | Breakeven ROAS = 1 ÷ Gross Margin %
Worked example. Revenue: $120,000. Ad spend: $30,000. ROAS = $120,000 ÷ $30,000 = 4.0. Gross margin: 35%. Breakeven ROAS = 1 ÷ 0.35 = 2.86. At ROAS 4.0, you're above breakeven and generating contribution margin. At ROAS 2.5, you're losing money before any fixed costs.
The Australian context
Australian ad costs have risen consistently as more businesses compete on Google and Meta. CPCs in competitive verticals like finance, legal and property have increased 20-40% over the past three years. This compresses ROAS for businesses that haven't improved their conversion rates to match. Australian businesses also face GST implications on ad spend that US-focused content often ignores.
Where people get this wrong
Related terms
Common questions
What is a good ROAS for Australian businesses?
It depends entirely on your gross margin. A business with 60% margins might be profitable at ROAS 2. A business with 20% margins needs ROAS 5+ to break even. Calculate your breakeven ROAS first, then benchmark against that number rather than industry averages.
How should I allocate ad spend across channels?
Start with the channel that has the clearest conversion data and proven ROAS for your business. Scale that first. Add channels once you have a baseline to compare against. Don't spread budget thinly across five channels when two are working.
What percentage of revenue should I spend on ads?
Australian SMBs typically spend 5-12% of revenue on total marketing, with paid media making up 40-60% of that. But the right number is whatever generates positive contribution margin at your target acquisition costs. ROAS profitability beats arbitrary percentage targets.
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About New Rebellion
New Rebellion is a marketing intelligence consultancy. We build tools, score Australian businesses on how their marketing actually performs, and publish Debrief every day. This dictionary is part of how we work in the open.
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