How to register a company in Australia

Should you register a company?

Not every business needs to be a registered company. In Australia, you can operate as a sole trader, a partnership, or a trust without registering a company at all. Each option carries different legal, tax, and administrative implications.

Registering a company makes sense if you want limited liability protection or if you plan to attract investors. It creates a separate legal entity that can own assets and enter into contracts in its own name. That said, companies come with stricter reporting duties to ASIC, the Australian Securities and Investments Commission.

Understanding Australian business structures

Australia offers four main business structures. Understanding each one helps you choose the right fit before you commit.

Company (Pty Ltd)

A Pty Ltd, or Proprietary Limited company, is a separate legal entity. It offers limited liability to shareholders, protecting personal assets from business debts. It's governed by the Corporations Act 2001 and regulated by ASIC.

Sole trader

A sole trader is the simplest structure available. You trade under your own name or a registered business name. There's no separation between your personal and business assets, so you're personally liable for all debts.

Partnership

A partnership involves two or more people sharing business ownership. Partners are generally personally liable for business debts. A formal partnership agreement is strongly recommended, even though it's not legally required.

Trust

A trust holds and manages assets on behalf of beneficiaries. It offers flexibility in distributing income and can provide tax advantages in certain situations. Trusts are typically more complex and costly to set up than other structures.

Which structure is right for you?

There's no universal answer here. Consider your risk level, tax position, funding plans, and long-term goals. A company is usually the best option if you plan to scale, raise capital, or need personal asset protection.

Advantages and disadvantages of a Pty Ltd company

A Pty Ltd is the most popular business structure in Australia. It offers strong legal protection and a credible image that opens doors with banks and investors.

Your personal assets are generally shielded from business liabilities. You can raise capital by issuing shares to shareholders and distributing profits through dividends. The company pays its own taxes, often at a lower corporate rate than personal income tax.

The disadvantages are real, though. Setting up a company involves more cost and administration than simpler structures. You must file documents with ASIC, maintain statutory registers, and comply with the Corporations Act 2001. Directors carry significant legal duties that can't be ignored.

Types of companies you can register in Australia

Not all companies are the same. Australia recognises several distinct company types, each suited to a different purpose.

Proprietary Limited (Pty Ltd), the most common

This is the standard structure for private businesses. It limits shareholder liability, restricts share offerings to private networks, and caps shareholders at 50 non-employee members. Most small and medium businesses in Australia use this structure.

Not-for-profit Pty Ltd

A not-for-profit Pty Ltd operates without distributing profits to members. It's still regulated by ASIC and the Corporations Act 2001. Profits must be reinvested into the organisation's purpose, making it suitable for community groups and social enterprises.

Special-purpose company

A special-purpose company is created for a specific purpose with limited function. Common examples include acting as a trustee for a trust or superannuation fund. It may qualify for reduced ASIC fees if it meets the relevant criteria.

Public company limited by guarantee

This structure is common for charities, industry associations, and clubs. Members are guaranteed a nominal amount rather than holding shares. Unlike a Pty Ltd, it can be listed on a stock exchange.

How much does it cost to register a company in Australia?

Knowing how to register a company in Australia also means understanding what it'll cost. As of 1 July 2025, ASIC charges AUD $611 as a one-off fee for a standard Pty Ltd company. This covers your entry onto the national companies register.

Here's a breakdown of the main registration costs to budget for:

ASIC company registration fee: AUD $611 (one-off, from 1 July 2025)
Business name registration: AUD $44 for one year or AUD $102 for three years
Company name reservation (optional): AUD $62 for up to two months
ABN application: Free through the Australian Business Register (ABR)

Professional fees add to these totals. Legal help with drafting a company constitution can cost AUD $600 to AUD $2,000 or more. Accounting setups typically range from AUD $500 to AUD $2,000. In total, first-year costs often fall between AUD $1,600 and AUD $6,000 or more.

Step 1: Pre-registration, decisions, and preparation

Before you lodge anything with ASIC, there are several key decisions to make. Getting these right saves time and prevents costly mistakes down the line.

Choose and check your company name

Your company name must be unique and not too similar to an existing registered name. Check availability through ASIC's online portal before proceeding. If the name is free, you can register it or reserve it while you finalise preparations.

Your chosen name must end with "Pty Ltd" to reflect its proprietary limited status. Certain words, like "bank" or "government," require special approval before use.

Decide on governance: Constitution vs. replaceable rules

Every company needs rules for how it's managed internally. You can adopt a company constitution or rely on the replaceable rules in the Corporations Act 2001. The replaceable rules act as a default framework if no constitution is adopted.

A tailored company constitution is usually better for companies with multiple founders. It offers more flexibility around decision-making, director powers, and dispute resolution.

Appoint your company officers

You need to appoint the right people to the right roles before you register.

Directors (required)

Every Pty Ltd must have at least one director who ordinarily resides in Australia. Directors are responsible for managing the company and meeting its legal obligations. They carry significant duties under the Corporations Act 2001.

Company secretary (optional)

For a proprietary company, appointing a company secretary is optional. If you do appoint one, they must also ordinarily reside in Australia. They assist with compliance and administrative duties.

Public officer (required)

Every company must appoint a public officer for tax purposes within three months of commencing business. The public officer is responsible for the company's obligations under tax law. They must be an Australian resident aged at least 18.

Obtain Director Identification Numbers

All directors must hold a Director Identification Number before being appointed. This unique identifier is issued through the Australian Business Registry Services (ABRS) and is free to apply for. Directors can apply online through the myGovID system.

Plan your share structure

You must decide how many shares your company will issue and at what price. You also need to determine the classes of shares and each shareholder's proportion. Keep the structure simple early on and document founder equity properly from day one.

Choose your registered office and business address

Your company must have a registered office address in Australia. This is the official address where ASIC and other authorities send correspondence. It must be accessible during business hours. Both the registered office address and your principal place of business address must be provided on registration.

Step 2: Register your company with ASIC

Once your pre-registration decisions are locked in, you're ready to lodge with ASIC. You can do this through the Business Registration Service at business.gov.au. This is also where you can apply for an ABN and enrol for GST, all in one session.

Information required for registration

When registering, you'll need to have the following details ready:

Your proposed company name and governance choice (constitution or replaceable rules)
Your registered office address and principal place of business address
Full details of all directors, including Director Identification Numbers
Shareholder details and share structure information

How long does registration take?

Registration through the Business Registration Service typically takes one to two business days after ASIC receives your lodgement and fee. In many cases, approval comes through almost immediately. If ASIC needs clarification, the process may take longer.

What documents will you receive?

Once registered, ASIC issues a Certificate of Registration and an Australian Company Number (ACN). The ACN is a unique nine-digit identifier that must appear on all official company documents and public-facing communications.

Step 3: Post-registration obligations

Registration is just the beginning. Now that you know how to register a company in Australia, there are several important steps to complete. Here's a quick overview of what's required:

Apply for an ABN and TFN through the Australian Business Register (ABR)
Register for GST if your turnover will exceed AUD $75,000
Register for PAYG withholding if you'll employ staff
Register a business name if trading under a different name

Apply for an ABN and TFN

An ABN is an 11-digit number that identifies your business to the ATO and other government agencies. You can apply through the Australian Business Register (ABR) as part of the Business Registration Service process. You should also apply for a Tax File Number (TFN) for your company, which is needed for lodging tax returns.

Register for GST (if required)

If your annual turnover will reach the AUD $75,000 GST turnover threshold, you must register for GST with the ATO. Businesses below this threshold can still register voluntarily. Once registered, you'll need to lodge regular Business Activity Statements.

Register for PAYG withholding (if you will have employees)

If your company will employ staff, you must register for PAYG withholding with the ATO. This requires you to withhold tax from employee wages and remit it to the ATO. Failing to register and withhold correctly can result in penalties.

Register a business name (if required)

If you trade under a name different from your legal company name, you must register your business name with ASIC. Business names are registered through the Business Registration Service and must be renewed every one or three years.

Open a business bank account

Every company should have a dedicated business bank account separate from personal finances. This simplifies accounting and tax reporting and demonstrates financial discipline to investors and lenders.

Maintain statutory registers

All companies must keep statutory registers up to date. These include the register of members (shareholders), directors, and charges. ASIC can inspect these records, so accuracy is essential.

Appoint a public officer and notify the ATO

You must appoint a public officer within three months of commencing business and notify the ATO. The public officer acts as the company's main contact with the ATO and ensures tax obligations are met on time.

What is an ACN, and how is it different from an ABN?

An ACN, or Australian Company Number, is a unique nine-digit number issued by ASIC at the time of company registration. It must appear on all official company documents and communications.

An ABN, or Australian Business Number, is an 11-digit number issued by the ATO through the ABR. It's used for tax purposes, invoicing, and GST registration. All registered companies need an ACN and an ABN, but not all ABN holders are registered companies. A sole trader or partnership can hold an ABN without an ACN.

Governance: Company constitution vs. replaceable rules (in-depth)

The replaceable rules in the Corporations Act 2001 provide a standard governance framework. They cover director meetings, shareholder voting, and the appointment and removal of directors. If your constitution is silent on a matter, these rules apply by default.

A custom company constitution replaces or modifies those default rules. It can be tailored to your specific needs, giving you more control over how your company operates. For companies with multiple shareholders or complex ownership structures, a constitution is often essential.

Adopting a constitution requires a special resolution passed by shareholders. Changes also require special resolutions. Getting this right from the start helps you avoid disputes down the line.

Director duties under the Corporations Act

Directors in Australia carry serious legal responsibilities under the Corporations Act 2001. These apply to all directors, regardless of company size. Key duties include the following:

Acting in good faith in the best interests of the company
Avoiding conflicts of interest and acting for a proper purpose
Exercising reasonable care and diligence in all decisions
Taking steps to prevent the company from trading while insolvent

Breaching these duties can lead to civil penalties, disqualification, or even criminal charges.

Record-keeping requirements for companies

Every registered company in Australia must maintain accurate financial records. Records must explain the company's transactions and reflect its financial position at any point in time. They need to be kept for at least seven years.

The ATO also requires companies to retain records that support their tax returns. These include invoices, receipts, bank statements, and payroll records. Good record-keeping from day one makes compliance simpler and reduces audit risk significantly.

FAQs

Here are answers to some common questions about registering a company in Australia.

How long does it take to register a company in Australia?

Registering a company in Australia typically takes one to two business days. This is after lodging your application through the Business Registration Service and paying the ASIC fee.

Do I need a lawyer to register a company?

You don't legally need a lawyer to register a company in Australia. Professional advice is recommended if your structure is complex or if you have multiple co-founders.

What is the difference between an ACN and an ABN?

An ACN is a nine-digit number from ASIC that identifies your company. An ABN is an 11-digit number from the ATO, used for tax and invoicing purposes.

How do I know if I need to register my company in Australia?

You need to register a company in Australia if you want limited liability and the ability to issue shares. It's the right structure for founders building for long-term growth. Our guide above explains how to register a company in Australia for those interested in doing so.