The True Cost of Running a Lawn Mowing Business in Australia

⚡TL;DR: Key Takeaways

• A solo lawn mowing operator turning over $75,000 should expect $13,550–$22,600 in annual costs before paying themselves
• Equipment depreciation alone costs $2,000–$3,000/year — most operators don't account for it
• The ATO benchmarks total expenses at 36–54% of turnover for businesses earning $50,000–$90,000
• Your true cost per hour (costs only, no wage) is likely $8–$10/hour. Add your desired wage and that's your quoting floor
• Over 1,500 jobs a year, not knowing your true costs can cost you $9,000+ in lost margin

You finished 30 lawns this week. You charged $80 a pop. That's $2,400 in the bank — decent money for a week's work.

Then you fill the ute. Pay the insurance renewal. Replace the trimmer line. Buy the blades you've been putting off. Suddenly $2,400 doesn't look so decent.

Most lawn care operators can tell you their hourly rate. Far fewer can tell you their actual cost per hour — the real number that includes every dollar leaving your pocket, whether you notice it or not. That gap between what you charge and what it actually costs you is where margins disappear.

We'll go through every cost category, with real Australian figures and ATO benchmark data, so you can see exactly where the money goes. Because if you don't know where it's going, you can't stop it leaking.

The costs you already know about

These are the line items most operators track, at least roughly.

Equipment

Your mower is your main tool, and it's your biggest upfront purchase. Here's what commercial-grade gear costs new in Australia:

A solo operator starting with a quality commercial walk-behind, trimmer, blower, and safety gear is looking at $2,000–$6,000 in equipment alone. Add a ride-on and you're north of $10,000.

Fuel

At roughly $100 a week for a full-time solo operator running a petrol mower, trimmer, and blower, plus driving between jobs, fuel sits at around $400–$500 per month. This climbs fast with a ride-on or if your jobs are spread across a wide area.

The real kicker is seasonal swing. In peak mowing season (September through March), you're running flat out. Fuel costs can push $600/month when you're mowing five or six days a week. In the quieter months, it drops. But most operators budget off their busy-season costs and get surprised when the annual total is lower than expected. Or they budget off their quiet-season costs and run short when things ramp up.

And fuel isn't just petrol for the mower. Two-stroke mix for the trimmer, driving between sites, and the odd trip to the mower shop for parts all add up. Keep a logbook for a month and the real number will probably surprise you.

Insurance

Public liability insurance is non-negotiable. Most operators carry $5–$20 million in cover. Expect to pay:

• Public liability: $600–$1,200 per year
• Equipment/tools insurance: $200–$800 per year
• Workers' compensation (if you employ anyone): varies, but budget $80+/month per employee

A solo operator with public liability and basic equipment cover is looking at $800–$2,000 a year in insurance premiums.

The costs that kill your margins

These are the ones most operators underestimate. Or forget entirely. They don't show up as a single big bill, so they slip through the cracks.

Equipment depreciation

Your $8,000 zero-turn won't last forever. The ATO sets effective life guidelines for commercial lawn care equipment:

Depreciation isn't cash leaving your account each month, but it's real. When that mower dies, you need a new one. If you haven't accounted for it, you're borrowing from future profits to pay for today's jobs.

Nobody thinks about depreciation until the mower won't start and there's $8,000 on the credit card.

A typical solo operator running one ride-on and one push mower is losing $2,000–$3,000 per year in equipment value, whether they realise it or not.

Maintenance and servicing

Blades need sharpening. Belts snap. Filters clog. Oil changes, spark plugs, air filters. It all adds up. Budget:

• Blade sharpening/replacement: $150–$300/year
• Servicing (per mower): $200–$500/year
• Unplanned repairs: $300–$800/year (it's always something)

Total maintenance: roughly $500–$1,500 per year depending on how many machines you're running and how old they are.

Vehicle running costs

Your ute or van isn't free to run. The ATO benchmarks motor vehicle expenses at 9–14% of turnover for operators earning $50,000–$90,000. On $75,000 turnover, that's $6,750–$10,500 per year. This covers:

• Fuel (for the vehicle, not mowers)
• Registration and CTP
• Servicing and tyres
• Depreciation on the vehicle itself

If you're also paying off a trailer ($1,000–$3,000 for a basic open trailer, up to $10,000 for an enclosed one), add that to the pile.

Admin, software, and everything else

The small stuff adds up over a year:

• Accounting software (Xero, MYOB): $300–$600/year
• Business registration: $50–$500
• Phone and data: $600–$1,200/year
• Website and marketing: $500–$1,500/year (even a basic Google Business listing takes time)
• Consumables (trimmer line, fuel cans, bin bags, sunscreen): $300–$600/year

Total admin and running costs: $1,500–$4,000 per year.

What the ATO says you should be spending

The Australian Taxation Office publishes small business benchmarks for lawn mowing and garden services. These are based on real tax return data from the 2022–23 financial year. If your numbers are way outside these ranges, it's worth investigating why.

Total expenses as a percentage of turnover

A solo operator turning over $75,000 should expect total expenses around $27,000–$40,500 — leaving $34,500–$48,000 before tax.

Notice how the percentage climbs as turnover grows. That's because higher-turnover businesses usually have employees, more equipment, bigger vehicle costs, and higher insurance premiums.

Labour and vehicle benchmarks

For a solo operator, "labour" is your own wage. If you're pulling $75,000 in turnover and paying yourself $18,750–$27,000 (25–36%), that's $360–$520 a week before tax. Sound about right?

The full picture: annual cost breakdown for a solo operator

So what does a full year actually cost? Here's a realistic annual breakdown for a solo lawn care operator turning over $75,000.

That's $261–$435 per week in costs before you pay yourself a cent.

On $75,000 turnover ($1,442/week), you're left with roughly $1,000–$1,180 per week before tax. That lines up with the ATO's benchmark of 36–54% total expenses for this turnover bracket (when you include your own wages as a cost).

Your true cost per hour

Here's where it matters for quoting. If you're working 45 billable hours a week across 48 weeks (allowing for rain days, holidays, and quiet patches):

Add the wage you need to earn, say $35/hour, and your true cost per hour is $43.30. That's your break-even. Every dollar above that is actual profit.

If you're charging $60/hour, your real margin is $16.70/hour — not $60.

That's a number most operators have never calculated. And once you have it, you stop guessing on every quote.

What happens when you scale

These numbers shift when you add an employee. You pick up labour costs ($25–$35/hour plus super and workers' comp), but your equipment depreciation and vehicle costs don't double. They spread across more billable hours. That's why the ATO benchmarks show expenses climbing as a percentage of turnover: the absolute costs go up, but you're (hopefully) earning more per hour of your own time because you're running two crews instead of one.

The trap is adding a worker before you've nailed your own cost per hour. If your solo margins are thin, a second person just doubles the problem.

Why this changes how you quote

Most operators set prices by feel. They look at the lawn, think about what sounds fair, and throw out a number. Sometimes they win, sometimes they don't.

The problem is "fair" doesn't account for the $8+ per hour in costs ticking away in the background. On a 45-minute job, that's over $6 in hidden costs you're probably not including in your quote.

Over a year, on 1,500 jobs, that's $9,000 in margin you never knew you lost.

When you know your true cost per hour, you quote from the numbers, not from your gut. You start with your actual costs, add the margin you want, and send the quote. No more wondering whether a job was profitable. You know before the customer even sees the price.

This is exactly what Gus's cost engine does. You enter your real equipment costs, fuel usage, and running costs once. Then every quote you build starts from your actual numbers, not guesswork.

What to do next

Here's how to put these numbers to work this week:

Calculate your true business costs

1

Add up your real costs

Use the breakdown above as a checklist. Go through your bank statements for the last 12 months if you need to. Don't skip depreciation. It's real money you'll need to spend when that mower finally gives up.

2

Calculate your cost per hour

Divide your total annual costs by your billable hours. That's your floor. The absolute minimum you need to charge just to cover expenses, before you pay yourself anything.

3

Compare to ATO benchmarks

If your expenses are well above or below the ranges for your turnover bracket, figure out why. Costs too high could mean inefficient routes or overdue equipment upgrades. Costs too low could mean you're not maintaining your gear properly, and that catches up with you.

4

Build it into your quoting

Every quote should start with your cost per hour, not end with it. When you know your true cost is $43/hour, you can quote $65 and know you're making $22/hour in real profit.

If you want to skip the spreadsheet, try the Startup Cost Calculator. It's free and built specifically for Australian lawn care operators.

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Running a lawn mowing business is hard enough without losing money on every job. Gus helps you know your costs before you quote, so every job is profitable from the start.