How to Change Your Sole Trader Business to a Company in Australia

A sole trader does not simply become a company

The key point is that changing from a sole trader to a company creates a different legal structure. As a sole trader, you and the business are legally connected. A company is a separate legal entity with its own rights and obligations.

This means you cannot edit your existing sole trader ABN so that it becomes the company's ABN. The Australian Business Register specifically lists a change from an individual or sole trader to a company as a situation where the old ABN needs to be cancelled and the new entity needs its own ABN.

If you only need instructions for establishing the new entity, see the separate guide to registering a Pty Ltd company. This procedure focuses on moving an existing sole trader business into that new company structure.

Prepare the new company structure first

Before making formal changes, decide how the company will operate. The Australian Government recommends deciding on the company's officeholders, understanding their legal duties, considering the shareholders and choosing the company's legal name.

A company has at least one shareholder and one director, and the same person can be both. Directors have legal responsibilities that do not apply in the same way to a sole trader.

If you will become a director, also make sure you have dealt with the separate director identification requirement. See how to apply for a director ID.

Register the company and get its ACN and ABN

You can register common company types through the Australian Government's Business Registration Service. A proprietary limited company is the most common private company structure used by small businesses.

Company registration produces an ACN. The company also needs its own ABN for the relevant business and tax activities. The Business Registration Service can combine several registrations in one process, including a company, ABN, business name and registrations such as GST and PAYG withholding.

If you need more detail about the ABN component, see applying for an ABN.

Your old ABN cannot move to the company

The ABR confirms that an individual or sole trader changing to a company needs a different ABN. Once the new company has its ABN, update invoices and business documents so they identify the correct entity.

Do not cancel the sole trader ABN too early. Australian Government guidance says to first meet any outstanding lodgement, reporting and payment obligations with government agencies.

When the sole trader has stopped carrying on the business, cancel its ABN. Cancelling that ABN also cancels registrations attached to it for GST, luxury car tax, wine equalisation tax and fuel tax credits. The new company therefore needs its own applicable registrations.

Move your business name to the company's new ABN

If the sole trader operates under a registered business name and you want the company to keep using it, changing the ABN associated with that name requires ASIC's business-name transfer process.

The existing holder starts the transfer through ASIC and receives a transfer number. The new entity then registers the business name against its new ABN using that number. ASIC states that the transfer number is valid for 4 months and 28 days.

ASIC also states that once the current holder submits the transfer, its registration is cancelled within 28 days. The unused part of the previous registration period is not transferred or refunded, and the new holder chooses a new one-year or three-year registration period.

If instead you want a different name for the company, the procedures are different. See registering a business name or, where appropriate, cancelling a business name you no longer use.

Transfer the business assets and rights the company needs

Registering the company does not automatically move everything owned or used by the sole trader into it. Australian Government guidance says to transfer existing licences and assets to the new company, including trademarks and other intellectual property where applicable.

Depending on your business, this transition can involve equipment, stock, contracts, domain names, intellectual property, leases, licences and permits. A licence or contract may have its own transfer, consent or new-application requirements, so check the issuing authority or contract rather than assuming the company automatically inherits it.

Check the tax consequences of the restructure

Moving assets from you personally to a company can have tax consequences. The ATO provides a Small Business Restructure Roll-over for eligible genuine restructures, but it is not automatic and has specific conditions.

Among the conditions, the ATO states that eligible entities must have aggregated turnover of less than $10 million, qualifying active assets must be transferred as part of a genuine restructure of an ongoing business, and the transaction generally must not change the ultimate economic ownership of the transferred assets. Other statutory conditions also apply.

Because the treatment depends on the assets and structure involved, check the tax position before transferring valuable assets rather than assuming incorporation is tax neutral.

Register the company for the taxes that apply

The company is a separate taxpayer. A company requires its own tax file number and normally its own ABN. Other registrations depend on the company's activities and circumstances.

For example, GST registration is required where the applicable registration rules are met. If the company needs GST registration, see how to register the company for GST.

Do not assume the sole trader's GST or other tax registrations move automatically. They belong to the old ABN and can be cancelled when that ABN is cancelled.

Update invoices, contracts and business records

After the company receives its new ABN, make sure invoices and business documents use the new entity's correct details. The ABR specifically warns businesses changing structure to update documents with the new ABN.

You should also review the practical records affected by the legal change, including bank arrangements, customer and supplier records, contracts, insurance and any government registrations or licences used by the business.

Finish the sole trader's obligations before cancelling its ABN

The safest sequence is to establish the company and its required registrations, transfer the business operations and assets appropriately, finish the sole trader's outstanding government obligations, and only then cancel the sole trader ABN when it is no longer carrying on the business.

This order reduces the risk of cancelling registrations the business still needs during the transition. Remember that the company remains subject to ongoing company obligations after registration, including keeping appropriate records, maintaining company details and completing ASIC annual review requirements.