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Yes, you should ask for a deposit before starting a job — and if you're not doing it consistently, you're self-funding work for people who haven't committed to paying you. The question isn't whether to ask; it's how much is legally safe in your state and how to present it so you don't lose the job.
This guide covers both. State-by-state legal limits, when to apply a deposit and when to skip it, and the exact workflow to collect it without chasing anyone.
Why deposits matter more in 2025 than ever before
The construction sector is in genuine financial trouble. A record number of construction firms entered insolvency in FY2024–25, and the majority of those collapses were small operators — the same businesses that quote on residential jobs, run a crew of 2 or 3, and carry material costs on their own account between quote acceptance and final payment.
The pattern is consistent: a job is accepted, materials are ordered, work starts — and then something goes wrong. The client delays, disputes the invoice, or disappears. Without a deposit, the operator absorbs the full material cost with no recourse.
This isn't a cash flow management problem in the abstract sense. It's a structural risk: you are acting as an unsecured lender to every client who hasn't paid a deposit. A deposit shifts that material cost risk back to the client where it belongs.
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For more on the underlying cash flow dynamics that make this so common in trade businesses, the piece on cash flow problems in service businesses covers the mechanics in detail.
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A deposit doesn't just protect your cash flow — it filters out the clients most likely to cancel, ghost, or dispute. Serious customers pay deposits. The ones who push back hardest are often the ones who would have cost you the most.
Should you ask for a deposit before starting a job?
Asking for a deposit before starting a job is standard practice for any trade work involving significant material cost, a new client relationship, or a scheduling commitment on your end. The risk isn't asking — it's asking inconsistently, without a written policy, or in a way that feels improvised.
Here's the honest version: a deposit presented as a line item in a professional written quote signals that you run a real business. A deposit asked for via text message the night before the job starts signals the opposite.
The operators who lose jobs over deposit requests are almost always doing one of two things wrong: asking for too much (above what the job risk justifies), or asking without a framework that makes it feel routine. Both are fixable.
The lead quality angle most operators miss
A deposit requirement does something beyond protecting cash flow — it qualifies your leads. A customer who accepts a quote and pays a deposit within 24 hours is a fundamentally different prospect to one who stalls, asks to "sort it on the day," or wants to negotiate the deposit amount. The second type is statistically more likely to dispute the final invoice, request scope changes mid-job, or leave a difficult review.
Related: Interior Designer's Booking System: 3 Hours of Email Saved Daily
Requiring a deposit before locking in a start date is one of the lowest-friction ways to sort those two groups before you've spent a day on site.
How much deposit can you legally charge? State-by-state rules
Deposit limits for residential building work are set by state legislation, and they vary more than most operators realise. Here's what the law actually says:
Deposit limits by state — residential building work
| Feature | NSW | QLD | VIC | WA |
|---|---|---|---|---|
| Legal basis | Home Building Act 1989 | QBCC Act 1994 | Domestic Building Contracts Act 1995 | Building Services (Complaint Resolution and Administration) Act 2011 |
| Contracts under $20,000 | Max 10% | Max 10% (over $3,300) | Max 10% | Max 6.5% (over $7,500) |
| Contracts $20,000+ | Max 10% | Max 5% | Max 5% | Max 6.5% |
| Special conditions | Applies to all residential building work | Up to 20% if >50% is off-site prefab | No special conditions | Strictest cap in Australia |
A few things worth noting that the table doesn't fully capture:
NSW holds at 10% regardless of contract value under the Home Building Act 1989, making it simpler to apply than QLD or VIC.
QLD drops to 5% once a contract hits $20,000, which catches a lot of operators off guard. The QBCC is explicit about this — check the QBCC Act Schedule 1B for the current thresholds.
WA is the strictest jurisdiction in Australia. The WA Department of Energy, Mines, Industry Regulation and Safety caps deposits at 6.5% for building work valued over $7,500 — full stop.
VIC mirrors QLD at 5% for contracts over $20,000.
What about non-regulated trade work?
For work that falls outside the residential building legislation — electrical service calls, HVAC maintenance, landscaping under the relevant threshold, general handyman work — there is no statutory deposit cap. Industry norms sit between 10% and 20%, weighted toward the higher end for material-heavy jobs.
The ceiling here is Australian Consumer Law, not a specific trade regulation. Charging above 30% on a non-regulated job without clear justification (special-order materials, significant upfront supplier cost) creates exposure to an unfair contract terms argument. Keep it proportionate to the actual material risk.
The legal cap, wherever it applies, is a ceiling — not a target. Charge what the job risk justifies.
When to ask for a deposit — and when not to
Not every job warrants a deposit, and applying one indiscriminately can damage relationships with your best clients. The segmentation is straightforward once you think about it in terms of cancellation risk and material cost exposure.
Ask for a deposit when:
- The client is new — no payment history with your business
- The job involves significant material cost (rough rule: materials exceed 30% of job value)
- You're ordering custom or special-order items that can't be returned
- The total job value is above $3,000
- You're in a high-demand period (post-storm season in QLD/NSW, pre-summer HVAC rush in VIC/SA) where a cancelled booking costs you a confirmed job
Skip the deposit when:
- It's a repeat commercial client with a clean payment history
- It's a small call-out job under $500 — the friction isn't worth it
- It's reactive or emergency maintenance where the client needs you now and the job will be invoiced same day
- The client has an existing payment plan or account arrangement
Consistency matters more than the percentage. A clear policy applied uniformly builds trust and produces predictable cash flow. A deposit that gets asked for on some jobs and not others — with no apparent logic — makes customers feel like they're being assessed rather than processed through a professional system.
Not sure where to start? Book a free 15-minute call — we'll audit your current setup and show you the fastest path to more predictable cash flow.
How to present your deposit policy without losing the job
The language you use matters as much as the amount. Customers don't object to deposits — they object to deposits that feel like you don't trust them, or that seem like a financial lifeline for a struggling business.
The framing that works consistently is materials procurement. It's accurate — a deposit is functionally what you use to order materials and secure your supplier account for the job — and customers understand it immediately. "A deposit of $X is required to procure materials and secure your booking date. This will be credited in full against your final invoice." That's it.
A few mechanics that matter:
- Include the deposit as a line item in your written quote, not as a separate conversation after acceptance. When it's part of the quote document, it's part of the deal — not a surprise add-on.
- Generate the quote through your job management tool (ServiceM8, Tradify, or Fergus), not a handwritten note or a text message. A tax-compliant deposit invoice generated automatically signals a professional operation.
- Present it as standard, not negotiable. Confidence here is important — hesitation signals that you expect pushback, which invites it.
- For invoice wording that gets paid faster, the same principle applies: clarity and specificity reduce friction more than any amount of polite follow-up.
For jobs over $5,000, structure the payment as deposit + progress claim + final payment. This mirrors regulated domestic building contracts, which means customers who've been through a renovation or build before will recognise it immediately. It also keeps cash moving mid-job.
How to present a deposit in your quote
Include deposit as a line item
Add the deposit amount directly to your quote document — not as a verbal add-on after acceptance. Label it clearly: 'Deposit — materials procurement and booking confirmation.'
Specify the credit
State explicitly that the deposit will be credited against the final invoice. This removes the most common customer anxiety about deposits.
Set the payment trigger
Tie the booking confirmation to deposit receipt — not to quote acceptance. The job is not locked in until the deposit clears.
Generate via your job management tool
Use ServiceM8, Tradify, or Fergus to produce an ATO-compliant deposit tax invoice automatically. Do not use a text message or handwritten receipt.
Collect before scheduling
Do not add the job to your schedule until the deposit has been received. This is the enforcement mechanism that makes the policy real.
How to collect deposits automatically
If you're chasing deposits manually — following up by phone, resending payment requests, checking your bank account before confirming the start date — your process is broken. The goal is zero manual follow-up between quote acceptance and deposit receipt.
Here's how the three main Australian job management platforms handle it:
ServiceM8 generates ATO-compliant deposit tax invoices automatically on quote acceptance and integrates with Stripe for instant card payment collection in the field. There's a free tier available with no credit card required, which makes it a low-risk starting point for sole traders. Best suited to residential and light commercial work.
Tradify lets you build deposit line items into quote templates, so the deposit amount is pre-populated every time. Xero and MYOB integration means an accepted quote flows straight to invoicing with no double entry. Strong mobile app for field use — useful if you're quoting on site.
Fergus is the strongest option for material-heavy trades (plumbing, electrical, HVAC). It tracks supplier costs against job budgets, flags margin erosion early, and supports progress payment scheduling tied to job stages. If your jobs regularly run over multiple days with staged material deliveries, Fergus handles the complexity better than the other two.
For a detailed side-by-side breakdown, the job management tool comparison covers pricing, features and which trade types each platform suits best.
graph TD
A[Quote sent to client] --> B{Client accepts quote}
B --> C[Deposit invoice generated automatically]
C --> D[Client pays via card or bank transfer]
D --> E[Job added to schedule]
E --> F[Work completed]
F --> G[Final invoice raised — deposit credited]
G --> H[Balance collected on completion]The workflow above should require zero manual intervention between steps C and E. If you're doing anything manually in that window, you're adding friction and creating gaps where jobs slip through unconfirmed.
For the broader payment collection picture, a faster payment collection system covers how to structure the full cycle from quote to final payment clearance.
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Deposits as a payment schedule, not a standalone charge
For jobs over $5,000, a single deposit at the start is only part of the structure. The more effective approach is a three-stage payment schedule: deposit on booking, progress claim at a defined milestone, final payment on completion.
The progress claim is the piece most operators skip, and it's the one that protects you most on larger jobs. Tie it to something tangible — rough-in complete, equipment delivered on site, first fix done — not to an arbitrary date. When the milestone is concrete and agreed in writing upfront, there's no ambiguity and no negotiation.
This structure does two things:
- It keeps cash flowing mid-job, reducing your exposure if the client delays the final payment
- It mirrors the regulated progress payment structure used in domestic building contracts, which means clients who've been through a larger build before will recognise it and trust it
Document each milestone in your job management tool and tie the progress invoice to job stage completion. In Fergus, this is built into the job stage workflow. In ServiceM8 and Tradify, you can set it up manually as a second invoice linked to the original job.
For payment terms that actually work across your full client base, the same principle applies: structure drives behaviour, and structure that mirrors industry norms gets less pushback.
Red flags: when your deposit policy is the problem
A deposit policy that generates consistent pushback isn't evidence that customers don't accept deposits — it's evidence that something in your policy or presentation is off.
If customers regularly push back on your deposit amount, it's either too high relative to the job value or you haven't framed it as materials procurement. A 20% deposit on a $500 call-out feels extractive. The same percentage on a $15,000 bathroom renovation feels routine.
If you're collecting deposits verbally or via text, you're creating ambiguity and leaving yourself exposed if the client disputes the arrangement later. Every deposit should be documented in a written quote and collected via a formal tax invoice.
If your deposit percentage varies job to job without a clear logic, customers notice. Inconsistency reads as improvisation, and improvisation reads as a business that doesn't know what it's doing. Write the policy down — even a single paragraph — and apply it uniformly.
If you're not crediting the deposit against the final invoice, customers feel like they've been charged twice. Always show the deposit credit as a line item on the final tax invoice. This is basic accounting hygiene, but it's also the thing that makes the deposit feel fair rather than like a surcharge.
Deposit policy health check
Frequently asked questions about trade business deposits
Pat Fong
Founder, ServiceScale
Helps Australian trade businesses build systems that generate leads, collect payments faster, and scale without chaos. Based in Sydney.
Credentials:10+ years working with trade operators across plumbing, electrical, HVAC and construction
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