How to Manage Subcontractors in Your Trade Business: A Practical Guide

for Australian Tradies

and does not constitute financial, tax or legal advice. Always consult a

Using subcontractors is one of the most effective ways to grow a trade

business beyond what you can do yourself -- without the full cost and

obligation of employment. Done well, a strong subcontractor network lets

you take on more work, handle peaks in demand, and access specialist

skills you don't have yourself. Done poorly, it creates quality control

headaches, compliance risks, and unhappy clients.

This guide covers how to find, engage, manage and pay subcontractors in

your Australian trade business, and how to avoid the common traps.

Employee vs. Subcontractor: Getting the Classification Right

Before engaging anyone as a subcontractor, make sure they genuinely are

one. The ATO has specific tests for determining whether a worker is an

employee or a contractor, and getting this wrong has serious

consequences -- including liability for PAYG withholding, superannuation,

and Fair Work entitlements that you failed to pay.

The key indicators of a genuine subcontractor include: they have their

own ABN, they can subdelegate work to someone else, they use their own

tools and equipment, they take on financial risk for the outcome of the

work, they work for multiple businesses (not exclusively for you), and

they set or negotiate their own rates.

If a "subcontractor" works exclusively for you, uses your tools, follows

your direction in every detail, and cannot send someone else to do the

work, the ATO may deem them an employee regardless of what your contract

says. The ATO's online employee vs. contractor tool is a useful starting

point for assessing any specific arrangement.

Finding Good Subcontractors

The best subcontractors come from your existing network -- tradies you've

worked alongside, people you've met on site, or recommendations from

suppliers and industry contacts. This is the same word-of-mouth trust

dynamic that fills your own job pipeline.

Beyond your network, trade-specific Facebook groups, local tradie

forums, SEEK, and industry associations are useful. For specialist

subcontractors -- a plastering team for a builder, a licensed gas fitter

for a plumber -- the pool can be smaller and the lead time to find

someone reliable can be longer. Build those relationships before you

desperately need them.

What to Cover in a Subcontractor Agreement

Every subcontractor engagement should be documented in writing. A simple

subcontractor agreement doesn't need to be complicated, but it should

cover:

• Scope of work: Exactly what the subcontractor is engaged to do

• Rate and payment terms: Hourly, daily or fixed price, and when

payment will be made

• Quality standards: What standard of work is expected and your right

to require rectification

• Insurance requirements: That they hold their own public liability

and workers' compensation (where required)

• Confidentiality: Client details and your business information

• GST: Whether quotes are inclusive or exclusive of GST

• Termination provisions: How either party can end the engagement

This protects both parties and makes expectations clear before any work

starts. A dispute without a written agreement is significantly harder

and more expensive to resolve.

Insurance Requirements

Before a subcontractor sets foot on one of your job sites, verify that

they hold adequate insurance. At minimum, this means public liability

insurance (typically $5-$20 million cover) and, if they have their own

employees, workers' compensation insurance.

Ask for a copy of their current certificate of currency for both

policies. Check the expiry date. Some head contractors and builders

require minimum $20 million public liability from all subcontractors --

know your contractual obligations before engaging subbies with lower

cover.

If a subcontractor causes damage to a client's property or injures

someone on site and they don't have adequate insurance, you as the head

contractor may end up bearing the liability. This is not a box to leave

unchecked.

Setting Quality Standards

The work your subcontractors do reflects on your business. Your client

doesn't care which individual did the work -- they care that it was done

to your standard. This means being clear about your quality expectations

before work starts, doing site visits and quality checks during and

after work, and being willing to require rectification when standards

aren't met.

This is harder to do than it sounds, particularly with experienced

subcontractors who are confident in their own approach. The key is

establishing standards at the start of the relationship -- not mid-job

when you're already in conflict. Walk the first job together. Show your

standard. Inspect the work before signing off.

Paying Subcontractors

Most subcontractors operating as sole traders or through their own

company will invoice you for their work inclusive of GST. You pay their

invoice and claim the GST on your BAS.

Under the Taxable Payments Reporting System (TPRS), if your business is

in the building and construction industry (including electrical,

plumbing, and most trade work), you are required to report all payments

to subcontractors to the ATO annually using the Taxable Payments Annual

Report (TPAR). This is lodged by 28 August each year and covers all

payments made to contractors in the previous financial year.

Keep records of every subcontractor payment throughout the year -- date,

amount, ABN, and description of work. Your accounting software should be

able to generate the TPAR data if you've been recording payments

correctly.

Managing Cash Flow With Subcontractors

Subcontractors add complexity to your cash flow. You typically need to

pay them before you receive payment from your client. On small jobs this

is manageable. On larger jobs -- particularly where you're waiting on a

progress claim payment from a head contractor -- the gap between paying

your subcontractors and receiving your own payment can be significant.

Plan for this by understanding your cash position before committing to

jobs that rely heavily on subcontracted labour, building payment terms

into your client contracts that align with your subcontractor payment

obligations, and maintaining a cash buffer specifically for

subcontractor payments.

When Subcontractors Let You Down

Even with the best systems, subcontractors occasionally don't deliver --

they don't show up, they do poor quality work, or they create problems

with your client. Have a clear process: communicate the issue directly

and professionally, document everything in writing, withhold payment for

unsatisfactory work until rectification is completed, and maintain

relationships with backup subcontractors in each trade so you're never

entirely dependent on one person.

The tradies who manage subcontractors well treat it like managing any

other important business relationship -- with clear expectations, regular

communication, and respect for the other party's interests. That

approach builds the kind of loyal subcontractor relationships that make

growing your trade business genuinely sustainable.