Do I register the day I hire my first worker?

The trigger is the scheme’s own eligibility rule in the relevant state, worth checking directly rather than assuming a single hire always starts the clock the same way everywhere.

What if my wage estimate turns out to be wrong?

Schemes reconcile the estimate against actual wages later. Correcting a known error as soon as it is identified is better than waiting for that reconciliation to catch it.

I already hold a policy in one state and I am opening in another. Do I register again?

Generally yes, because each state runs its own scheme and its own registration, and a policy in one state does not extend automatically to work based in another. Where the same worker is involved across states, the state of connection question decides which single registration actually applies to them.

Registering as a new employer for workers compensation

In short

Registration is triggered by the scheme’s own eligibility rules in the state where the worker is based, not by a business simply deciding to sign up.
The process runs through the scheme itself — an online portal, an appointed agent, or a direct application — rather than a comparison of insurers in most states.
What actually opens the process is almost always a wage estimate, which the scheme later checks against what was actually paid.

The mechanics of registering for workers compensation differ by state, but the shape is similar everywhere: work out whether the obligation has been triggered, register with the right body, and get an initial wage estimate on record. This page is that shared shape, drawn from how several state schemes describe their own process.

Which body a new employer actually registers with, and how, depends entirely on the state — this page sets out the pattern rather than any one state’s detail, and links through to the state-specific pages for the rest.

Work out whether you are actually triggered

Every scheme sets its own rule for when the requirement to hold cover starts, and it is a rule to check against the specific scheme rather than infer from general experience or from what a business in another state does. Engaging even one person under an arrangement the scheme treats as a contract of service can be enough, well before a business thinks of itself as "an employer" in the ordinary sense.

The framework for working out who this reaches

Register with the right body

In a state that runs a central scheme, registration happens directly with the scheme itself, generally through an online portal. In a state with an approved-insurer or agent model, registration happens through the agent or insurer chosen for the policy, since that entity is who actually administers the cover day to day.

The wage estimate is what actually opens the file

Across the schemes examined here, the figure that gets a new registration moving is an estimate of wages for the period ahead, not a market quote of the kind used for other insurance. That estimate is what a premium is initially calculated against, and it is checked and adjusted later once actual wages are known.

An estimate that is clearly wrong at the outset is worth correcting immediately rather than waiting for the scheme’s own reconciliation to catch it, since a business that under-declares can find the correction arriving as a larger adjustment than if it had been fixed early.

What to have ready before starting

Business registration details, an estimate of wages for the people who will be covered, and a clear picture of who on the books is an employee versus a contractor are common inputs every scheme asks for in some form. Sorting the worker-versus-contractor question before registering, rather than during it, avoids having to re-declare later.

Questions

Do I register the day I hire my first worker?: The trigger is the scheme’s own eligibility rule in the relevant state, worth checking directly rather than assuming a single hire always starts the clock the same way everywhere.
What if my wage estimate turns out to be wrong?: Schemes reconcile the estimate against actual wages later. Correcting a known error as soon as it is identified is better than waiting for that reconciliation to catch it.
I already hold a policy in one state and I am opening in another. Do I register again?: Generally yes, because each state runs its own scheme and its own registration, and a policy in one state does not extend automatically to work based in another. Where the same worker is involved across states, the state of connection question decides which single registration actually applies to them.

Sources

WorkSafe Victoria — how to register for WorkCover insurance — WorkSafe Victoria’s own description of employer registration and the role of a WorkSafe agent.
icare — understanding icare and workers compensation — icare’s own description of its role as Nominal Insurer, its claims service providers, and specialised insurers.
ReturnToWorkSA — The South Australian work injury scheme’s own description of registration and self-insurance.
WorkCover Queensland — accident insurance — WorkCover Queensland’s own description of the accident insurance policy and how an employer takes one out.