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Start a Company or Register Your Australian Business in Minutes.

Start a company, register a business name, and apply for ABN and TFN online in Australia. Guided ASIC-compliant registration for founders who want a faster way to launch.

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Find your ideal structure

Answer 4 quick questions to get a personalised recommendation.

Do you plan to have employees?

Hiring staff introduces payroll obligations and changes the ideal structure.

1 of 4

Why founders choose RSB

Registration that's fast, compliant, and built for the way you work.

Smart Validation

Our 'Sentinel' AI checks your data in real-time to prevent ASIC rejection before you even submit.

Zero Friction

No accounts required to start. Move from idea to a registered company in minutes, not hours.

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Future-Proof

Built for the July 1, 2026 mandate with near real-time Payday Super payment compliance built-in.

Marketplace Service

We handle more than just company registration

ABN registration is now part of the RSB offering for founders who registered with us and for companies that were registered elsewhere.

Available

ABN Registration

Apply for your ABN once your ACN has been issued, add GST if needed, and set up PAYG withholding from the same service.

  • For companies registered with RSB
  • For companies registered elsewhere with an ACN
  • Account required for all applicants

Ready now

Already have your ACN? Open the ABN workspace to start a new application or continue one you already saved.

Open ABN workspace
Popular business registration searches

Start a company, register a business, or compare your options

In Australia, “register a business” can mean a few different things: starting a Pty Ltd company, applying for an ABN as a sole trader, or registering a business name with ASIC. We publish plain-English guides for each path so founders and search engines can understand exactly what to do next.

How to start a company in Australia

Learn the full company formation path: structure, ASIC registration, ACN, ABN, TFN, and first-step compliance.

Read the company guide

How to register a business in Australia

Understand when you need an ABN, a business name, or a full company registration, and which option fits your goals.

Read the registration guide

Pty Ltd vs sole trader

Compare liability, tax, setup cost, and growth flexibility before you choose how to start your business.

Compare structures
Learn & Prepare

Everything you need to know

Free guides and tutorials to help you register your Australian business with confidence.

Guides & Articles

Getting Started

How to start a company in Australia

A plain-English guide to choosing a structure, registering with ASIC, and setting up ABN and TFN after incorporation.

6 min read
Registration

How to register a business in Australia

Understand the difference between registering a business name, applying for an ABN, and forming a company.

6 min read
Business Structure

Pty Ltd vs Sole Trader: Which structure is right for you?

Understand the key differences between business structures and choose the right one for your situation.

5 min read
Registration

ABN vs ACN — What's the difference?

Demystify the two main identifiers for Australian businesses and when you need each one.

3 min read
Compliance

ASIC registration: A step-by-step guide for 2026

Everything a new founder needs to know about registering a company with ASIC in Australia.

7 min read
Requirements

Setting up your registered office address

Learn what a registered office is, why it matters, and what ASIC requires.

4 min read
Directors

Director obligations in Australia

What duties and responsibilities come with being a director of an Australian company.

6 min read
Super & Tax

Payday Super — What changes on 1 July 2026?

How the new mandatory quarterly superannuation payment timeline affects your business.

4 min read
Tax & Compliance

Do I need to register for GST in Australia?

When the $75,000 threshold kicks in, how to register, and what BAS obligations follow.

5 min read
Registration

How to register as a sole trader in Australia

Step-by-step guide to getting an ABN, registering a business name, and when to upgrade to Pty Ltd.

5 min read
Compliance

Company constitution — do you need one?

Replaceable rules vs a custom constitution: what each covers and which suits your structure.

6 min read

How It Works

Choose your structure

60-second quiz to find the right type

1

Add your details

Directors, shareholders & registered office

2

We lodge with ASIC

Electronically — no paperwork needed

3

You're registered

ACN & docs in your dashboard

4

Quick Facts

Registration in 5 minutes

  • Our guided flow collects everything ASIC needs
  • Name availability is checked instantly
  • We lodge electronically — no forms to print
  • ACN typically issued within minutes of lodgement

Your company obligations

  • Annual review fee — $346 due each year to ASIC
  • Annual company statement lodged within 28 days of review date
  • Notify ASIC within 28 days of any changes (address, directors, etc.)
  • Keep financial records & lodge tax returns with the ATO

Payday Super from 1 July 2026

  • Super must be paid on payday, not quarterly
  • Applies to all employers from 1 July 2026
  • Late payments attract the Super Guarantee Charge
  • RSB flags Payday Super readiness in your dashboard

Business Registration FAQs

How do I start a company in Australia?

Choose a structure, confirm your company name, provide director and shareholder details, nominate a registered office, lodge with ASIC, then set up ABN and TFN. Our start-a-company guide breaks each step down.

Read more

How do I register a business in Australia?

That depends on the structure. Sole traders usually apply for an ABN and may register a business name, while companies also register with ASIC for an ACN.

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What is the difference between a business name and a company?

A business name is just the trading name you use. A company is a separate legal entity with its own ACN, directors, and ongoing ASIC obligations.

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Should I choose sole trader or Pty Ltd?

Sole trader is simpler and cheaper, while Pty Ltd offers liability protection and is usually better for multiple owners, staff, or investment plans.

Read more