Recurring Revenue When Buying a Business in Australia: What It's Worth and How to Verify It

Recurring revenue is the closest thing to a free lunch when buying a business. A cleaning company with 40 clients on monthly service agreements is worth more — sometimes dramatically more — than one doing the same turnover through one-off jobs. The first has predictable cash flow; the second is starting from zero every Monday morning.

In Australia, the term gets used loosely. So before you pay a premium for it, you need to know exactly what you're looking at — and whether it will survive the handover.

What Counts as Recurring Revenue in a Trades Business

Recurring revenue means contracted, repeatable income that arrives without the business having to re-sell the customer each time. In blue-collar trades in Australia, that looks like:

Maintenance contracts — HVAC servicing, pest control schedules, fire safety compliance checks. A customer signs for quarterly visits; you invoice four times a year without lifting a phone.
Service agreements — plumbing or electrical businesses that cover commercial properties for callouts and scheduled maintenance, often with a fixed monthly retainer.
Subscription cleaning — residential or commercial cleaning on weekly or fortnightly schedules, often invoiced automatically.
Compliance-driven work — mandatory annual inspections (grease trap cleaning, air conditioning certifications, safety audits) that customers must do by law, not just choose to do. This is arguably the most reliable recurring revenue you'll find.
Consumables replenishment — some pest control businesses sell on-going chemical supply contracts alongside the labour. Sticky, defensible, often overlooked.

What is not recurring revenue: loyal repeat customers who "always come back" but have no contract. That's goodwill. It's nice, but the seller cannot guarantee it transfers to you.

Why Recurring Revenue Changes the Valuation Equation

A business generating $500K annual revenue entirely through one-off jobs might sell at 2–2.5× EBITDA. The same business with 60% of that revenue locked into multi-year contracts could attract 3–4×. The contracted portion is simply worth more because it's lower risk for the buyer.

Rule of thumb: every dollar of genuine recurring revenue is worth 1.5–2× a dollar of project revenue in a valuation. This isn't a precise science — the quality of the contracts matters enormously — but as a starting heuristic it holds up across most trades categories.

The reason is straightforward: the acquirer doesn't need to win those customers again. Lenders understand this too. A business with strong contract revenue is easier to finance, because the bank can model the cash flows with more confidence. This is covered in depth in Module 2 of the Playbook.

It's also worth reading about which industries tend to have the most reliable recurring revenue — pest control and HVAC maintenance consistently punch above their weight here.

The Spectrum of Contract Quality

Not all recurring revenue is equal. Here's how I think about it, from strongest to weakest:

Tier 1 — Legally binding, multi-year, written contracts with termination fees. Commercial pest control agreements, HVAC maintenance packages, fire safety compliance contracts. If a customer wants out, there's a process and usually a cost. These transfer cleanly with a business sale and lenders will treat them as near-certain future income.

Tier 2 — Written agreements, month-to-month or annual, no termination clause. Still valuable because the customer has committed in writing, but they can walk with 30 days notice. Residential cleaning falls here. The revenue is sticky in practice even if not iron-clad on paper.

Tier 3 — Verbal agreements or "we always do their X." A seller who tells you "the council always gives us the contract" or "the shopping centre has been with us for eight years" is describing relationship-dependent goodwill, not recurring revenue. Whether that relationship survives the sale of the business is an open question — and often the answer is no.

A broker told me recently about a deal that fell apart six months post-settlement when a large commercial client took their cleaning contract to tender. The buyer had paid a 3.5× multiple on revenue that included this client at 35% of turnover. Nothing in writing. Nothing in the SPA protecting against it. (The seller was long gone with the proceeds.)

How to Verify Recurring Revenue in Due Diligence

When a seller claims recurring contract revenue, here is what you actually verify — not what they tell you:

1. Obtain copies of all contracts. Read them. Note the term, the renewal mechanism, the termination clause, and whether there's a change-of-control clause. Change-of-control clauses are common in commercial agreements and can void the contract when ownership changes — this is a material risk that needs to be flagged early.

2. Cross-reference against invoices and bank statements. Every claimed contract client should appear in both the accounts receivable records and the bank statements at the contracted frequency. If a client is on a "quarterly" schedule but you see only one payment in 18 months, ask why.

3. Calculate customer concentration. If three clients represent 70% of the contracted revenue, you don't have a diversified recurring revenue base — you have three high-risk relationships. You can read more about how owner dependency affects your risk profile and the same logic applies here to customer concentration.

4. Phone a few of them. This sounds obvious but most buyers don't do it. Ring three or four of the larger contracted clients and ask — without tipping your hand — whether they're happy with the service and plan to renew. You'll learn more in ten minutes than a week of document review.

5. Check the renewal dates. A seller who has helpfully renewed all their contracts to three-year terms six months before selling has done you a favour — or has pre-loaded the deck. Either way, know when everything falls due and model what happens if 20% don't renew.

For a structured approach, the owner dependency scorecard is a useful starting framework — many of the same assessment principles apply to customer dependency.

See also verifying contracts during due diligence for a broader look at the financial verification process.

Red Flags That "Recurring Revenue" Isn't What It Looks Like

I've seen enough deals to have a shortlist of warning signs:

The contracts are all due for renewal in the next 90 days. This is not a coincidence.
The owner is the relationship. The customers chose this business because of the person running it. Once that person is gone, the stickiness is personal not contractual.
Revenue is booked but not invoiced. Some businesses recognise revenue when the work is scheduled, not when it's done. This inflates the recurring revenue number on paper.
Residential clients only, no contract. Residential cleaning customers, in particular, will leave for a $20/fortnight difference. Without contracts, this revenue is as recurring as they feel like it being.
Pricing hasn't been reviewed in years. Contracts at 2019 pricing are a liability, not an asset. You'll either absorb the margin compression or reprice and risk churn.

How Much Extra Should You Pay for Recurring Revenue?

This depends on three factors: the quality of the contracts (Tier 1 vs Tier 3 above), the customer concentration risk, and whether the contracts are genuinely transferable.

For a well-diversified Tier 1 contract base — written agreements, no single client over 15%, clean change-of-control terms — a premium of 0.5–1× EBITDA above an equivalent project-based business is reasonable. For Tier 2, maybe 0.25–0.5×. For verbal agreements, nothing — because they're not contracts.

The easiest sanity check: ask yourself what the business looks like if the top three contracted clients don't renew in month one. If the answer is "still viable," you have real recurring revenue. If the answer is "we're bleeding from day one," you're paying for something you don't actually own.

Industry-Specific Notes

Pest control: This is probably the gold standard for recurring revenue in Australian trades. Domestic pest management contracts, commercial kitchen schedules, termite management agreements — all written, all compliance-driven. Multiple operators in this space sell at 3–4.5× EBITDA specifically because of contract quality.

HVAC: Commercial HVAC maintenance agreements are strong. Residential split-system "service plans" are weaker — customers cancel them when times get tight. Focus your attention on commercial and industrial clients if recurring revenue is the thesis.

Cleaning: The gap between commercial and residential is wide. Office cleaning contracts (often 12–24 month agreements) are solid; residential is largely uncontracted and price-sensitive.

Plumbing and electrical: Recurring revenue is harder to find but does exist — facilities management agreements, strata contracts, commercial preventative maintenance. This work is usually more profitable and less competitive than quoting for one-off jobs. If you're buying in this space, what actually makes a small business profitable covers the broader picture.

Landscaping: Commercial grounds maintenance contracts (councils, strata, commercial properties) are excellent. Residential gardens are not.

Frequently Asked Questions

How to value a business with recurring revenue? Apply a multiple to normalised EBITDA, with the multiple reflecting contract quality. Well-diversified Tier 1 contracts (written, multi-year, transferable) typically justify a 0.5–1× EBITDA premium over comparable project-based businesses. Always verify contracts are genuinely transferable under a change of ownership.

What is the 1% rule in business? The 1% rule isn't a standard Australian business acquisition metric — it's more common in property. In a business context, a rough equivalent is whether monthly contracted revenue covers 1% of the purchase price, but this isn't a reliable valuation benchmark. Focus on EBITDA multiples and contract quality instead.

How much is a business worth with $100,000 in sales? Revenue alone doesn't determine value — profit margin does. A $100K revenue business might generate $30K–$60K EBITDA depending on the industry and cost structure, worth perhaps $75K–$240K depending on contract quality, owner dependency, and growth trajectory. Don't buy on revenue; buy on earnings.

The Bottom Line

Recurring revenue is genuinely valuable — but only when it's actually there. A seller who can hand you a folder of signed, transferable, multi-year service agreements with blue-chip clients is selling you something real. A seller who tells you their customers "always come back" is selling you hope.

Do the work in due diligence. Read the contracts. Make the phone calls. Model the renewal risk. If the recurring revenue holds up under scrutiny, pay for it — it will make your first 90 days considerably less stressful.

If you want to go deeper on evaluating what makes a business genuinely worth buying, the Business Type Selection Scorecard is a free resource that walks through exactly this kind of assessment.

And if you want more on the mechanics of buying blue-collar businesses in Australia, The Leveraged Worker newsletter covers deals, frameworks, and lessons from the coalface — subscribe below.