Register your company

Before registering as a company

Find out more about setting up and running a company, before you decide to register as a company. A company has different legal, financial and record keeping responsibilities compared to other business structures.

Understand directors' responsibilities and personal liability

Read the Sole trader to a company section for more information on directors' responsibilities, your potential personal liability and company tax obligations. These obligations affect your legal requirements when running a company. Read How to start a company on the Australian Securities and Investments Commission (ASIC) website to understand the requirements before deciding to register a company.

How to choose and register a company name

When you register as a company you can choose to register a company name, although a company name is not compulsory. The name of your company can be its Australian Company Number (ACN), the unique number automatically given to a company by ASIC when it’s registered. You can select to use the ACN as your company name when you complete your application through ASIC and you won’t have to nominate a name.

If you decide to use a company name it must show the legal status of the company. A proprietary company must include the word 'Proprietary' or the abbreviation 'Pty' in its name. It must also show the liability of its members, unless the members' liability is unlimited. For example:

  • If the liability of the company's members is limited to the amount unpaid on their shares, the company name must end with the word 'Proprietary Limited'.
  • If the liability of the members is unlimited, the company name will only end with the words 'Proprietary'.

Restrictions on company names

You can only choose a company name not already registered to a company or business. Special approval is also required to use certain words in your company name. Check out ASIC’s Company name availability page to learn more.

If your company carries on business in a name different to your registered company name, then you must register the business name.

Your business name does not protect your intellectual property or brand. Understand the differences between a business name and a trade mark before deciding whether to register a trade mark.

Register your business the easy way

With the new Business registration service Beta, you can apply for your key business registrations using one form. Even though it’s a Beta service, the registrations you apply for are real.

Who can use this service?

The Business registration service is currently available for:

  • New businesses starting as a company, trust, sole trader, joint venture or partnership who can apply for a company name, Australian Business Number (ABN) and tax registrations. In the future it will also be available to superannuation funds.
  • Existing companies with an ABN, who can apply for tax registrations or an AUSkey login.

We need your help! If you use this service, please give us your feedback so we can make it even better!

Register a company

What's an Australian Company Number (ACN)?

An ACN is a unique nine-digit number that every company in Australia has.

ACNs are managed by the Australian Securities and Investments Commission (ASIC).

Do I need an ACN?

If your business is a company, then you'll need an ACN. By law, an ACN must be shown on a number of documents, including:

  • accounting statements, such as invoices
  • any documents you lodge with ASIC
  • receipts (if they're not machine generated, e.g. from a cash register)
  • orders for goods and services
  • business letterheads
  • official company notices
  • cheque, or any documents that represent a legal amount of payment
  • written ads making a specific offer that can be accepted (such as by completing an order form).

If your company also registers for an ABN, then your ACN will form part of your ABN. In these cases, you won't need to display your ACN if your documents already display your ABN and company name.

For reasons why you may like to register an ABN for your company, check out our article on Australian Business Number (ABN).

How do I register for an ACN?

You are automatically given an ACN when you register a company with ASIC.

What to do...

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