ABN Registration Services

Starting a business in Australia? One of the very first steps is obtaining your Australian Business Number (ABN). This unique 11-digit number is essential for operating legally, invoicing clients, registering for GST, opening business accounts, and interacting with government services. At Trident Accounting, we take the stress out of registering your ABN by handling the process from start to finish — ensuring it’s accurate, fast, and compliant.

What Is an ABN and Why Is It Important?

An Australian Business Number (ABN) is issued by the Australian Business Register (ABR) and managed by the Australian Taxation Office (ATO). It’s not just a formality — it’s a critical identifier for your business. Without an ABN, you could have up to 47% of your income withheld from payments under PAYG rules, and you won’t be able to register for GST, apply for business finance, or even legally invoice clients.

An ABN links your business to your Tax File Number (TFN) and is required for things like setting up a business bank account, registering a domain, applying for grants, and managing your tax obligations.

You can read more on the ATO website here: ATO – ABN Essentials

Who Needs an ABN?

You need an ABN if you’re carrying on or starting an enterprise in Australia. This includes:

• Sole traders and freelancers
• Companies and partnerships
• Trusts, including family or discretionary trusts
• Online sellers (e.g. Shopify, Etsy, Amazon)
• Contractors and consultants
• Non-profits and self-managed super funds (SMSFs)

Even if your business is just getting started or you only intend to earn a small side income, if you're offering products or services with the intention of making a profit, you should apply for an ABN.

Our ABN Registration Service

At Trident Accounting, we don’t just lodge your ABN — we make sure your business is structured properly from the beginning. Our ABN Registration Service includes:

• Advice on choosing the right business structure (sole trader, company, trust, etc.)
• ABN application prepared and lodged by a registered tax agent
• Linking your Tax File Number (TFN) or ACN if applicable
• ATO confirmations and reference numbers provided directly
• Option to register for GST, PAYG withholding, and a business name
• Follow-up support and compliance advice post-registration

We make sure your business starts off on the right foot with no confusion and no wasted time.

How Long Does It Take?

Most ABN applications are approved instantly when lodged correctly. If your application is flagged for manual review by the ATO, it may take up to 28 days — but we’ll handle all follow-ups and keep you informed along the way.

Pricing

From $60 – Our base fee covers sole trader ABN registration and support. If you’re setting up a more complex structure, such as a company or trust, additional services like ASIC registration, business name registration, or legal structure setup may apply.

For full pricing and service bundles, view our pricing page.

Bundle With Other Services

Many of our clients choose to bundle their ABN registration with additional services for a complete business setup. Popular combinations include:

• Business Setup
• Bookkeeping Service
• Individual Tax Preparation
• Business Taxation Services

Why Choose Trident Accounting?

As registered tax agents with extensive experience across sole traders, startups, and SMEs, we don’t just tick boxes — we help you understand your obligations and plan for success. We’ve registered hundreds of ABNs across all industries and structures, and we’re here to give you clarity, compliance, and confidence from the start.

Get Started Today

Don’t delay your business launch by trying to DIY your registration. Get expert help and avoid costly mistakes. We’ll make sure your ABN is done right — fast, affordable, and fully compliant.

📧 Contact us to get started today.
📞 Or call us on 0295252354