What Does a Google Ads Campaign Actually Cost in Australia?

Ask ten Aussie business owners what a Google Ads campaign costs and you’ll get ten different answers, most of them wrong. The honest answer is that there are three numbers stacked on top of each other, and most agencies only tell you about one of them.

This is a working breakdown of what Google Ads actually costs a small business in 2026, broken into the three layers: media spend (what Google charges per click), management fee (what your agency charges to run it), and the hidden third number nobody talks about. By the end you’ll know what’s reasonable, what’s a rip off, and where the leverage actually sits.

Layer 1: Media spend (what Google charges)

Media spend is the money that goes directly to Google for clicks on your ads. You set a daily budget, Google spends it within about 20% either side on a daily basis, and the per-click cost varies wildly by industry and keyword competition.

Rough Australian benchmarks by industry for search campaigns in 2026:

• Trades and home services (plumbers, electricians, locksmiths): $4 to $12 per click. Emergency keywords like “emergency plumber” can spike to $20 plus.
• Legal and professional services: $15 to $60 per click. “Personal injury lawyer” and similar high-intent legal terms can hit $80 to $120.
• Healthcare and allied health: $6 to $25 per click depending on specialty. Cosmetic dental and IVF are the expensive end.
• E-commerce: $0.80 to $4 per click for Shopping campaigns. Brand searches cheap, generic product terms more expensive.
• B2B SaaS: $8 to $40 per click. Higher for category-defining keywords.
• Real estate: $3 to $9 per click for buyer searches, higher for vendor lead generation.
• Hospitality and events: $1.50 to $6 per click.

What does that translate to in monthly spend? If you’re a plumber paying $8 per click and you need 100 clicks a month to generate 12 leads, that’s $800 in media spend. A law firm at $40 per click needing 80 clicks for 5 enquiries is $3,200. The same Google Ads “campaign” can be $500 a month or $50,000 a month, depending entirely on what you’re selling and how many leads you need.

The trap most owners fall into: setting a budget based on what they can afford, not what they need. If your sales process needs 10 leads a month to hit revenue targets, and 10 leads costs $4,000 in media spend, then a $1,500 budget will never get you there. Underfunded campaigns underperform, you blame the agency, the agency blames the budget, nobody wins.

Layer 2: Management fee (what your agency charges)

This is where pricing gets murky. There are four common models in Australia:

1. Percentage of spend (15 to 25%)

The agency takes a cut of your media spend. Spend $5,000 a month, agency keeps $1,000 (at 20%). Common in larger agencies. The conflict baked in: the agency makes more when you spend more, regardless of results. They have no incentive to make your $5,000 campaign as efficient as a $3,000 one would be.

2. Flat monthly retainer ($800 to $4,000)

A fixed monthly fee regardless of spend. $800 to $1,500 a month for small accounts under $3,000 in spend, $2,000 to $4,000 for accounts spending $5,000 to $25,000 a month. Cleaner incentive: the agency’s job is to make your spend work, not to inflate it.

3. Performance based (cost per lead or cost per sale)

You pay an agreed amount per lead delivered, or a percentage of attributed revenue. Sounds great in theory. In practice, most agencies offering this model define “lead” so loosely (any form submission, any phone call over 30 seconds) that you end up paying for junk. Read the contract carefully.

4. Setup plus management (split fee)

A one off setup fee ($1,500 to $5,000) covers account build, keyword research, conversion tracking, ad creative. Then a smaller ongoing management fee ($600 to $2,000 a month) covers optimisation. Honest pricing for what’s actually different work. Setup is intense and one off, ongoing management is lighter.

What you should pay depends on what you need. For a small local business spending under $3,000 a month in media, a flat retainer of $800 to $1,200 a month is fair. If your agency wants $2,500 a month to manage a $1,500 ad spend, something is wrong. Either they’re not actually doing much, or they’re charging you for capacity you don’t need.

Layer 3: The hidden cost most agencies don’t disclose

The third number is what your campaign costs in conversion infrastructure, and it’s the one that decides whether the first two were worth it. This includes:

• Landing page build or optimisation ($1,500 to $8,000 one off, sometimes monthly)
• Call tracking software ($30 to $200 per month)
• Conversion tracking and analytics setup (often bundled or hidden)
• CRM integration so leads actually go somewhere ($0 to $300 per month)
• Ad creative refresh, especially for Display and Performance Max ($500 to $2,000 every quarter)

If an agency quotes you $1,000 a month and never mentions landing pages, conversion tracking, or creative refresh, that’s a flag. They’re either expecting you to handle it (and you probably don’t have time), or they’re going to charge you piecemeal later, or, worst case, they’re going to run your campaign without it and pretend you have a conversion rate problem when really you have a tracking problem.

Real world example: a Melbourne trades business

Here’s a realistic monthly cost breakdown for a Melbourne plumbing business doing Google Ads:

• Media spend: $3,500 (about 400 clicks at $8.75 average CPC)
• Management fee: $1,200 (flat retainer)
• Call tracking: $80
• Landing page hosting and CRO tweaks: $150
• Total monthly cost: $4,930

At a 9% conversion rate on landing page visits, that 400 clicks turns into 36 leads. Total cost per lead of $137. If 30% of leads convert to jobs worth an average $850, that’s 11 jobs at $850 = $9,350 in revenue from $4,930 in spend. Roughly 1.9x return on ad spend, before factoring in repeat customers and referrals.

That’s a realistic, working campaign. Plenty of plumbing accounts do better. Plenty do worse. The numbers above are what good looks like in 2026, not what perfect looks like.

How to figure out the right budget for you

Skip the “what should I spend” question. Ask the reverse: what do I need to earn?

Pick a monthly revenue target from Google Ads. Divide by your average sale value to get number of sales needed. Divide by your lead to sale conversion rate to get number of leads needed. Multiply by a realistic cost per lead for your industry. That’s your media spend. Add management fee and infrastructure costs. That’s your total monthly investment.

Worked example: you want $20,000 a month in extra revenue. Your average sale is $1,500. You need 14 sales. Your lead to sale rate is 25%, so you need 56 leads. If realistic CPL in your industry is $90, your media spend is $5,040. Add $1,500 management and $200 infrastructure: $6,740 a month all in. If that math doesn’t work for your margins, your campaign won’t either. Either raise your prices, lift your conversion rate, or pick a different channel.

This is the conversation a good Google Ads agency starts with, not the conversation they have after twelve months of underperformance.

What this means for choosing an agency

When you’re talking to a Google Ads agency, the right question isn’t “how much do you charge”. It’s “what’s the total monthly cost for a campaign that delivers the number of leads I need, and what’s your evidence that you can deliver them at that cost”. If they can’t break their pricing into the three layers above, or they get cagey about the third one, that tells you something.

If you’re trying to figure out whether your current campaign is set up right or just bleeding money, we wrote about what a good cost per lead actually looks like for an Aussie small business. And if the agency you’re working with can’t answer the questions above, our Google Ads management page has a free 30 minute audit offer. We’ll look at your account, tell you what’s wrong, and not charge you for the privilege.

Quick reference: what’s reasonable in 2026

• Media spend under $3,000 a month: management fee should be $600 to $1,200, flat retainer
• Media spend $3,000 to $10,000 a month: management fee $1,000 to $2,500
• Media spend over $10,000 a month: percentage models start to make sense, target 12 to 18%
• Setup fees over $5,000 should come with a written deliverables list and timeline
• Lock in contracts longer than 6 months are a red flag. Good agencies earn the renewal
• Performance only pricing with vague lead definitions is almost always a worse deal than a flat retainer

Google Ads isn’t expensive or cheap. It costs what your industry, your lead volume needs, and your conversion rate make it cost. Anyone telling you a different story is selling you something.

Sources and further reading

• Google Ads Help: How Google Ads pricing works (auction mechanics, Quality Score, ad rank).
• WordStream 2026 Google Ads benchmarks (industry CPC and conversion rate data).

If you want a straight answer on what Google Ads would cost for your business, get in touch and we will run the numbers with you.

Frequently asked questions