Two construction workers in hard hats shaking hands on site

Part-time WHS consultant or full-time safety manager? How to choose

Most growing businesses reach a point where safety can’t be handled on the side any more. A client asks for a WHS management system, a SafeWork NSW inspector visits, or the business wins work that involves higher-risk activities. The obvious answer seems to be hiring a safety manager. Often, it isn’t the best one.

This guide compares the main options and explains how to choose.

Key takeaways

  • WHS duties can’t be outsourced, but expertise can.
  • A full-time WHS manager makes sense when the workload genuinely needs someone every day.
  • Part-time WHS support gives smaller businesses senior expertise for a set number of hours each month.
  • Project-based help suits one-off needs such as ISO 45001, an audit or a set of SWMS.
  • The right consultant should leave your business more capable, not more dependent.

Signs you need dedicated WHS support

  • Clients or head contractors are asking for documents and systems you don’t have
  • Safety sits with an operations or office manager who doesn’t have the time or training
  • Your SWMS, risk assessments and procedures are generic or out of date
  • You’ve had an incident, a near miss or a regulator visit that exposed gaps
  • You’re growing, taking on higher-risk work or adding sites
  • Nobody can confidently say whether the business is compliant

Option 1: hire a full-time WHS manager

A full-time WHS manager is on site every day, builds deep knowledge of your business and can drive culture change. For larger or higher-risk operations, that daily presence is hard to replace.

The trade-offs are cost and experience. Salary and on-costs are significant, senior practitioners are hard to attract on a small-business budget, and a less experienced hire may lack the authority or depth to handle complex issues, incidents or regulator contact on their own. One person can also become a single point of failure.

Option 2: part-time WHS support

With part-time or fractional support, a senior WHS professional works with your business for a set number of hours each month, combining site visits with remote support. You get senior expertise without a full-time salary, the hours can scale up or down, and you get an independent perspective on your systems.

The trade-offs are that the consultant isn’t there every day, so you need a clear internal contact who owns safety day to day, and the value depends heavily on the consultant’s experience and approach.

Option 3: project-based consulting

Some needs are one-off: an ISO 45001 implementation, an independent audit, a set of SWMS for a new contract, or an incident investigation. A defined project with a clear scope and fee is often the most efficient way to handle these, with or without ongoing support.

Comparing the options

Full-time WHS managerPart-time WHS support
CostFull salary and on-costsA set monthly fee for agreed hours
AvailabilityOn site every dayScheduled visits plus remote support
SeniorityDepends on who you can attractSenior practitioner from day one
FlexibilityFixedHours scale up or down
IndependencePart of the teamExternal, independent view
Best suited toLarger or very high-risk operationsSmall to mid-sized businesses

What good part-time support looks like

  • Agreed monthly hours and priorities, reviewed regularly
  • A mix of on-site visits and remote support
  • Regular reporting to management on progress and open actions
  • A clear internal owner for safety day to day
  • A focus on building your team’s capability
  • The ability to scale up for projects, audits or incidents

What to look for in a WHS consultant

  • Recognised professional standing, such as Chartered status with the Australian Institute of Health and Safety or IOSH
  • Experience in your industry and with businesses of your size
  • A practical approach that fits your operations
  • Independence, with no products or software to sell you
  • References from comparable clients
  • Appropriate professional indemnity and public liability insurance

Remember: the duty stays with you

Under the WHS Act, duties can’t be transferred to another person. A consultant or safety manager helps you meet your duties, but the business and its officers remain responsible. Choose the option that gives you the most reliable way of meeting those duties for the work you actually do.

Senior WHS support without a full-time salary

Our part-time WHS service puts a Chartered Fellow WHS professional on your team for a set number of hours each month.

Frequently asked questions

How many hours a month does a small business need?

It depends on your size, the risk in your work and the state of your current system. Many businesses need more time in the first few months while the main gaps are closed, then less once the system is running well.

Can a part-time consultant handle incidents?

Yes. A good arrangement includes support with incident notification, regulator contact and investigation, and the hours can be increased when something serious happens.

Will a consultant take on our legal liability?

No. WHS duties can’t be transferred. A consultant helps you meet your duties, but the business and its officers remain responsible.

About the author

Karim Ali is the Principal Consultant at SafetyDeeds. He is a Chartered OHS Professional and Fellow of the Australian Institute of Health and Safety (ChOHSP, FAIHS), a Chartered Fellow of IOSH (CFIOSH) and a Certified Safety Professional, with more than 20 years of experience in high-risk industries. He has also prepared more than 150 independent WHS expert witness reports. More about Karim.

This article is general information only and is not legal advice. Last reviewed October 2026.