How Long Does It Take to Get an ABN?

Starting a business is an exciting step, but it often comes with a long list of to-dos—one of the most important being getting your Australian Business Number (ABN). An ABN is a unique number identifying your business to the government and other organisations. It’s essential for things like invoicing clients, registering for GST, and opening a business bank account. You'll likely need one if you're working as a sole trader, freelancer, or setting up a company. Naturally, a common question that comes up is: how long does it take to get an ABN? The answer depends on a few factors, but in many cases, it’s quicker than you might think.

In this article, we’ll explain how the process works, what affects the timing, and what to do if there’s a delay, so you can get started with confidence and avoid unnecessary hold-ups in your business journey.

What Is an ABN and Why Do You Need It?

An Australian Business Number (ABN) is a unique 11-digit number that identifies your business to the government, other businesses, and the public. It’s a key part of operating legally and professionally in Australia, especially if you're running a business or working as a sole trader or contractor.

You need an ABN to issue invoices, GST registration, and lodge business activity statements (BAS). It’s also required when applying for certain licences or opening a business bank account.

Having an ABN makes it easier to do business. It shows others that you're a legitimate operation and allows clients to withhold less tax when paying you. It also gives you access to tax credits and simplifies dealings with the Australian Taxation Office (ATO). Whether you’re starting small or planning to grow, an ABN is a must for running your business smoothly and staying compliant.

What are the requirements for an ABN?

Obtaining an Australian Business Number (ABN) is a key step when setting up a business in Australia. The Australian Taxation Office (ATO) outlines specific requirements to ensure ABNs are issued only to genuine businesses and entities. At Hello Ledger, we help new business owners navigate this process with clarity and confidence.

Here’s a breakdown of the essential ABN requirements:

• You must be carrying on or starting a business. This includes sole traders, partnerships, companies, and trusts.

• Your business must operate in Australia or make goods connected to Australia.

• You must meet tax obligations. This includes keeping records, lodging tax returns, and registering for GST if your turnover meets the threshold.

• Accurate identity details such as your legal name, Tax File Number (TFN), and business contact information must be provided.

• Your business structure must be clearly defined. Companies must also hold a valid Australian Company Number (ACN).

• You need a valid reason for applying, such as launching a business or updating your business structure.

Meeting these criteria helps ensure your application is approved smoothly. If you’re unsure where to start, our team at Hello Ledger is here to guide you through every step.

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How to apply for an ABN?

📋 Step 1: Choose Your Business Structure

└── if you are a Sole Trader | Partnership | Company | Trust.

This choice affects your legal responsibilities and tax obligations.

📂 Step 2: Prepare Your Info

└── Gather your Tax File Number (TFN), business contact details, description of your business activity, and your business start date.

🌐 Step 3: Apply Online

└── You can apply for an ABN online through the official website at abr.gov.au.

Alternatively, we at Hello Ledger offer professional assistance to help you complete your ABN application accurately and efficiently, making the process smooth and stress-free.

✅ Step 4: Submit Your Application

└── Review all your details carefully before submitting to avoid errors or delays. Most applications are processed immediately if all the information is correct.

📨 Step 5: Receive Your ABN

└── Your ABN will be sent by email and registered on the Australian Business Register, usually instantly. Keep this number safe—it's essential for invoicing, tax, and banking.

Need help with your ABN registration? Contact Helloledger today and let our experts guide you through the entire process, so you can focus on growing your business with confidence.

How long does it take to get an ABN?

The time it takes to receive an Australian Business Number (ABN) depends on how the application is submitted and the accuracy of the details provided. When applying online with correct and complete information, many applicants, particularly sole traders, can receive their ABN immediately after submission.

However, not all applications are processed instantly. If the Australian Business Register (ABR), managed by the Australian Taxation Office (ATO), needs to verify additional information, the review process can take up to 28 days. Delays typically occur due to incomplete details, identity verification issues, or complex business structures.

To ensure a smooth process, it's recommended to apply well in advance of your intended business start date. Submitting accurate details and applying during business hours can also help avoid delays.

At Hello Ledger, we offer personalised ABN help and support to guide you through every step of the ABN registration and business registration process in Australia.

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What to Do if Your ABN Is Delayed?

If your ABN isn’t issued immediately, don’t worry—some applications need manual review. You can check your application status on the Australian Business Register (ABR) website using your reference number. Delays usually happen due to incomplete information or identity verification. If your application is refused, review the reasons carefully—common issues include not meeting business criteria or incorrect details. You can reapply after fixing these issues.

At Hello Ledger, we can help review and resubmit your application to ensure it meets ATO requirements, minimising delays and giving your business a stronger start.

Start your ABN registration with HelloLedger

Navigating the ABN application process can be confusing, especially if you’re new to running a business. At HelloLedger, we simplify this essential step by providing expert support tailored to your unique needs.

Our team helps you:

• Understand which business structure suits you best

• Prepare and organise all necessary documents and information

• Complete your ABN application accurately to avoid common errors

• Submit your application efficiently to reduce processing time

• Provide ongoing advice on tax obligations and compliance

By choosing Hello Ledger, you’re not just getting help with your ABN—you’re partnering with professionals committed to setting your business up for success. Our friendly, personalised service ensures your application runs smoothly, so you can focus on growing your business with confidence.

Book a Free Discovery Call Today. Get expert guidance to simplify your ABN registration—schedule your free discovery call with Hello Ledger now!

Common Questions About ABN

Can I start working before I get my ABN?

Yes, you can begin work before receiving your ABN. However, it’s important to apply as soon as possible because clients often require your ABN for invoicing and tax purposes.

Do I need an ABN if I’m freelancing occasionally?

If you’re freelancing regularly and earning income, you generally need an ABN. For truly casual or one-off jobs, an ABN may not be necessary, but it’s best to check your specific situation.

Can I apply without a Tax File Number (TFN)?

You can apply for an ABN without a TFN, but providing your TFN helps speed up the process and verifies your identity more easily.