- ACN registration depends on preparation, not the form. Having your Director ID, company structure, and shareholder details ready upfront is what determines whether your application goes through smoothly.
- ASIC approval is fast, delays are self-inflicted. Most registrations are approved within 1–2 days, and delays almost always come from incorrect details, missing consent, or name issues.
- You can’t operate fully with just an ACN. After registration, you still need an ABN, tax registrations, and a proper setup before you can legally invoice, hire, or run operations.
Starting ACN registration in Australia is one of the first steps in setting up a company and it’s also where many founders run into confusion or costly delays.
In this guide, we’ll walk you through the exact process to:
- Register your company with ASIC
- Get your ACN, including
- What you need to prepare
- The key steps involved, and
- The decisions you’ll need to make along the way.
We’ll also cover what happens after your ACN is issued and the essential compliance obligations to keep your company in good standing.
Before submitting Form 201, double-check that all director and shareholder details exactly match official ID records (including middle names and spelling). Even small mismatches are one of the most common reasons ASIC applications get delayed or rejected.
What do you need before ACN registration in Australia?
Before you begin your ACN registration, make sure you have the following details ready. Missing or incorrect information is one of the most common reasons applications get delayed or rejected.
- Director ID (mandatory)
All directors must have a Director ID before being appointed. You’ll need to apply through ABRS before starting your registration. - Company name
Your name must be available and comply with ASIC rules. Alternatively, you can register with your ACN as the company name. - Director and shareholder details
Full legal names, addresses, and consent from each person involved in the company. - Registered office address
A physical Australian address (PO boxes are not allowed). You must have written consent if it’s not your own address. - Share structure
Decide how ownership will be divided, including the number and type of shares issued.
Having these ready upfront will make the ACN registration process faster and help avoid unnecessary delays.
How to register for an Australian Company Number (ACN) in Australia in 2026?
Follow these steps to complete your ACN registration and get your company set up correctly with ASIC. Each step matters, missing details or incorrect inputs can delay approval or require resubmission.
Step 1: Confirm your company structure
Most businesses register as a proprietary limited company (Pty Ltd), which is the standard structure for startups and small businesses in Australia.
This structure:
- Limits personal liability
- Allows you to issue shares and bring in investors
- Is required if you want to operate as a registered company
Read more: How to Set Up a Pty Ltd Company in Australia: Complete 2026 Guide
Step 2: Get your Director ID (mandatory)
All directors must have a Director ID before being appointed to a company.
- Apply for director ID via ABRS (Australian Business Registry Services)
- Identity verification is required (via myGovID)
- You cannot register a company without it
Step 3: Choose your company name
Your company name must:
- Be available and not identical to an existing registered name
- Comply with ASIC naming rules
- Include “Proprietary Limited” or “Pty Ltd”
You can either:
- Register a custom name, or
- Use your ACN as the company name (e.g. “123 456 789 Pty Ltd”)
Read more: How to Choose a Business Name in Australia (Examples and Pitfalls to Avoid)
Step 4: Appoint directors and shareholders
You must decide who will:
- Manage the company (directors)
- Own the company (shareholders)
Key requirements:
- At least one director must ordinarily reside in Australia
- Directors must consent to their appointment
- Shareholders must agree to share allocation
Step 5: Decide your share structure
Before registering, define:
- Number of shares issued
- Price per share
- Ownership split between shareholders
Most small businesses:
- Issue ordinary shares
- Keep the structure simple initially (e.g. equal split between founders)
Step 6: Set your registered office and principal place of business
You must provide:
- A registered office address (for ASIC communication)
- A principal place of business (where your company operates)
Read more: Principal Place of Business vs Registered Office
Important rules:
- Must be a physical street address in Australia
- PO boxes are not allowed for the registered office
- You need written consent if using an address you don’t own
Step 7: Lodge your application with ASIC (Form 201)
You can register your company by:
- Applying via the Business Registration Service (BRS), or
- Using a registered ASIC agent (like Sleek)
You’ll need to complete ASIC Form 201, which includes:
- Company name
- Director and shareholder details
- Share structure
- Registered office and business address
Step 8: Pay the ASIC registration fee
Once submitted, you’ll need to pay the ASIC registration fee.
- $611 for most companies (including Pty Ltd businesses)
- $503 for special purpose companies (e.g. trustee or non-profit structures)
Fees are indexed and may change over time.
Step 9: Receive your ACN and company registration
If your application is complete and correct, ASIC will issue:
- Your Australian Company Number (ACN)
- A Certificate of Registration
Step 10: Apply for ABN and relevant tax registrations
After receiving your ACN, you can apply for your ABN (Australian Business Number) and other required registrations.
Depending on your business, this may include:
- GST registration (if you meet the threshold)
- PAYG withholding (if you employ staff)
If you’re using someone else’s address as your registered office, you must have written consent before lodging your application, ASIC can request proof, and failing this can invalidate your registration.
How long does it take to get an ACN in Australia?
ACN registration is typically a fast process as long as your application is complete and accurate.
- Application time: Around 15–20 minutes to complete online
- Approval time: Usually within 1–2 business days after submission and payment
In many cases, approvals can come through within a few hours, especially when lodged through a registered agent and all details are correct.
What can delay your ACN registration?
Your ACN registration can be delayed if:
- A Director ID has not been obtained before applying
- Company name is unavailable or incorrectly submitted
- Director or shareholder details don’t match official records
- Registered office consent is missing
- Errors are made in ASIC Form 201
Even small mistakes can lead to rejection or resubmission, which can push timelines out by several days.
What are the common mistakes in ACN registration?
Even though ACN registration is straightforward, small mistakes can delay approval or require you to resubmit your application.
Here are the most common issues to avoid:
- Applying without a Director ID
All directors must have a valid Director ID before registration. Missing this will stop your application entirely. - Choosing a company name that’s already taken
If your name is not available or doesn’t meet ASIC rules, your application won’t go through. - Incorrect director or shareholder details
Names, addresses, and dates of birth must match official records exactly. - Missing consent from directors or address providers
You must have consent from all directors and from anyone whose address you use as your registered office. - Errors in ASIC Form 201
Incorrect or incomplete information can lead to delays or rejection. - Unclear or incorrect share structure
Mistakes in share allocation or ownership details can cause issues later and may require corrections.
What happens after you get your ACN in Australia?
Once your ACN is issued, your company is officially registered but there are a few important steps before you can start operating fully.
- Apply for an ABN (Australian Business Number)
Required to identify your business for tax and invoicing purposes - Register for GST (if applicable)
Mandatory if your turnover exceeds the GST threshold - Set up PAYG withholding (if hiring employees)
Required if you plan to pay staff or contractors - Open a business bank account
Needed to manage company finances separately
What are your ongoing obligations after ACN registration?
Registering your company is just the first step, you’ll also need to meet ongoing compliance requirements to keep your business in good standing with ASIC and avoid penalties.
- Annual ASIC review and fee
Each year, ASIC will issue a statement for your company. You’ll need to review your details and pay the annual review fee to keep your registration active. - Keep company details up to date
Any changes to directors, shareholders, or addresses must be reported to ASIC within 28 days. Failing to update details on time can result in late fees. - Maintain financial records
You’re required to keep accurate financial records that explain your company’s transactions and financial position. - Meet director responsibilities
Directors must act in the best interests of the company, avoid conflicts of interest, and ensure the business meets its legal and tax obligations.
Most registration issues don’t come from ASIC, they come from founders rushing setup decisions (like share structure or ownership split) and needing to fix them later, which is far more complex and costly than getting it right upfront.
Get your ACN registration fast with Sleek
Sleek helps you register your company correctly from day one and stay on top of your ASIC obligations, so you avoid delays, errors, and unnecessary compliance risks.
- End-to-end company registration: We handle your ACN registration from start to finish, preparing your application, lodging it correctly, and ensuring your company is set up in line with ASIC requirements. From ACN to ABN and tax registrations, everything is managed in one place.
- Built-in compliance from day one:Getting registered is only the first step. Sleek helps you stay compliant with ongoing ASIC requirements, including annual reviews, company updates, and key filings, so nothing falls through the cracks.
- All-in-one business support: Beyond registration, Sleek supports your business with accounting, bookkeeping, payroll, and tax, giving you a single partner for your financial and regulatory needs as you grow.
- Clear, transparent pricing: Simple, upfront pricing with no hidden fees, so you know exactly what you’re paying for at every stage.
Whether you’re setting up your first company or expanding into a new venture, Sleek ensures your ACN registration is done right and your compliance stays on track as your business grows.
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Frequently Asked Questions
Can I start trading immediately after ACN registration?
Not fully. While your company exists once the ACN is issued, you’ll typically need an ABN and relevant tax registrations (e.g. GST, PAYG) before you can legally invoice, hire staff, or operate fully.
Do I need a Director ID before registering a company?
Yes. All directors must have a Director ID before appointment, and you cannot complete ACN registration without it. This is a mandatory legal requirement in Australia.
Can I register a company without being an Australian resident?
Yes, but your company must have at least one director who ordinarily resides in Australia. Without this, you cannot register a Pty Ltd company.
