- Your fulfilment model directly impacts your tax and margins. Whether you self-fulfil, dropship, or use 3PL affects COGS, GST treatment, and cash flow timing, not just operations.
You’re responsible for compliance across your entire sales funnel. From product listings to checkout, you must meet ACL, privacy, and spam laws, even if platforms or tools are handling parts of the process.
Poor financial tracking is the most common cause of tax errors. Without structured systems, businesses often misreport income, miss deductions, or get GST wrong, leading to avoidable ATO issues.
Starting an online business in Australia isn’t just about launching quickly, it’s about setting up the right structure, systems, and compliance from day one. Many founders focus on building their store first, only to run into tax issues, cash flow problems, or legal gaps later.
If you’re researching how to start an online business in AU, it’s important to understand that starting a business involves more than just building a website, it requires getting your
- Registration
- Tax setup
- Financial foundations right from the beginning
This guide walks you through the practical, accountant-backed steps to start an online business the right way, so you stay compliant, avoid costly mistakes, and build a business that can scale.
Don’t ignore refund and return policies, they’re a legal requirement, not optional Under Australian Consumer Law, your policies must align with consumer guarantees, even if your supplier handles fulfilment.
7 steps to start an online business in Australia
Here’s a step-by-step framework used by successful Australian ecommerce businesses, covering not just setup, but long-term sustainability.
Step 1: Plan your online business properly
Before registering anything, you need clarity on how your business will actually operate because this directly impacts your tax obligations, margins, and scalability.
Start by defining:
- What you’re selling: Physical products, digital goods, or services, each comes with different GST treatment and compliance requirements
- Who you’re selling to: Local vs international customers (this affects GST and logistics)
- How you’ll fulfil orders: Self-fulfilment, dropshipping, or third-party logistics (3PL)
From an accounting perspective, your fulfilment model affects:
- Cost of goods sold (COGS)
- Profit margins
- Cash flow timing
Pro tip: Many new founders skip validation and invest heavily upfront. Instead, use tools like Google Trends, competitor analysis, and small test launches to validate demand before committing significant capital.
Step 2: Choose the right business structure
Your business structure determines how you’re taxed, your legal liability, and how easy it is to grow or raise funding.
In Australia, most online businesses choose between:
- Sole trader: Low cost and simple to set up, but you’re personally liable for all debts
- Partnership: Shared ownership, but also shared financial and legal risk
- Company (Pty Ltd): Higher setup and compliance costs, but offers limited liability and is more tax-efficient at scale.
Choosing the wrong structure early can lead to:
- Higher tax bills than necessary
- Personal exposure to business debts
- Complications when scaling or bringing in partners
Read more: What Is the Best Business Structure in Australia?
Step 3: Register your online business
Once your structure is clear, formalise your business setup.
At a minimum, you’ll need to:
- Apply for an ABN: An Australian Business Number is required for invoicing, working with suppliers, and interacting with the ATO
- Register a business name: If trading under a name other than your own
- Set up a registered address: Required for ASIC and ATO correspondence (no PO boxes for companies)
You’ll also need to register for GST once your turnover reaches $75,000.
While registration is straightforward, getting it wrong can delay:
- Payment gateway approvals
- Supplier onboarding
- Tax registrations
Step 4: Meet legal and compliance requirements
This is where many online businesses cut corners and it often leads to issues later.
At a minimum, your online business should have:
- Australian Consumer Law (ACL) compliance: Accurate product descriptions, pricing transparency, and clear refund policies
- Privacy policy: Required if you collect customer data, aligned with the Privacy Act
- Website terms and conditions: Cover payments, shipping, returns, and dispute handling
- Spam Act compliance: Required for email marketing (consent and unsubscribe functionality)
Depending on your products, you may also need:
- Industry-specific licences
- Product safety compliance
Failure to meet these requirements can result in:
- Customer disputes
- Platform restrictions (e.g. Shopify or payment providers)
- Regulatory penalties
Step 5: Set up your website and payments
Your website is your primary sales channel but it also needs to meet trust and compliance expectations.
Focus on:
- Choosing the right platform: Shopify, WooCommerce, or Squarespace depending on your needs
- Domain and hosting: .com.au domains require a valid ABN
- SSL security: Essential for protecting customer data and building trust
- Payment gateways: Stripe, PayPal, or other secure providers
You should also clearly define:
- Shipping timelines
- Return policies
- Customer support processes
Before launching, test your:
- Checkout flow
- Payment processing
- Order confirmations
Many businesses lose early sales due to small technical issues that could have been caught in testing.
Step 6: Set up your accounting and finances correctly
This is one of the most critical steps and where many online businesses struggle.
Start with the fundamentals:
- Separate business finances: Open a dedicated business bank account to avoid mixing personal and business transactions
- Use accounting software: Tools like Xero or QuickBooks automate tracking and integrate with ecommerce platforms
- Track all income and expenses: Including refunds, fees, ads, subscriptions, and supplier costs
From a tax perspective, proper tracking ensures:
- Accurate profit reporting
- Maximum deduction claims
- Correct GST reporting
Without proper systems in place, businesses often face:
- Overpaying tax
- Missed deductions
- Errors in BAS lodgements
Step 7: Build your online presence and marketing strategy
Once your operations are set up, the focus shifts to generating consistent traffic and sales.
Start with your core channels:
- Website optimisation: Mobile-friendly design, clear product pages, and seamless checkout
- Social media platforms: Focus on where your audience is (e.g. Instagram, TikTok, Facebook)
- Paid advertising: Use targeted ads to accelerate growth
Rather than spreading yourself thin, focus on one or two channels and optimise them based on performance data.
As your business grows, track key metrics such as:
- Customer acquisition cost (CAC)
- Conversion rates
- Average order value (AOV)
These numbers directly impact profitability and scalability.
Selling internationally doesn’t remove your Australian tax obligations. Even if your customers or suppliers are overseas, the income is still taxable in Australia and must be reported correctly.
Do you need an ABN to start an online business in Australia?
In most cases, yes.
If you’re running an online business with the intention of making a profit, the ATO generally requires you to have an ABN.
This applies even if:
- You’re just starting out
- Your income is low
- It’s a side hustle
Without an ABN, you may face:
- Difficulty setting up payment gateways or supplier accounts
- Higher tax withholding in some cases
- Inability to register for GST when required
Registering for an ABN is free and can usually be completed in minutes via the Australian Business Register.
Read more: Do I Need an ABN for a Side Hustle in Australia?
What tax obligations apply to an online business in Australia?
The ATO treats online businesses the same as traditional businesses which means you’re responsible for tax and reporting from day one.
Income tax
All business income is taxable, but you’re only taxed on net profit (revenue minus expenses).
- Sole traders: taxed at individual income tax rates
- Companies: taxed at corporate tax rates
This includes:
- Domestic sales
- International transactions
GST (Goods and Services Tax)
GST becomes mandatory once your turnover reaches $75,000.
Once registered, you must:
- Charge 10% GST on applicable sales
- Lodge Business Activity Statements (BAS)
- Report and remit GST collected
You can also claim GST credits on eligible business expenses.
Record keeping
You’re required to maintain accurate records for at least five years, including:
- Sales data
- Expense records
- Transaction history
Poor record keeping is one of the most common reasons businesses run into ATO issues.
What most online businesses get wrong
From an accounting and compliance perspective, the most common mistakes include:
- Not tracking finances properly from day one
- Misunderstanding GST obligations (especially for online and international sales)
- Mixing personal and business expenses
- Delaying accounting setup until after revenue starts growing
These issues often lead to:
- Incorrect tax reporting
- Cash flow problems
- Avoidable penalties
The businesses that scale successfully are the ones that treat accounting and compliance as a priority early not an afterthought.
How much does it cost to start an online business in Australia?
Before you set up your online store, it’s important to understand the upfront and ongoing costs you’ll face, having a clear budget helps you start with confidence.
Item | Approximate costs | Notes |
Business name registration (1 year) | A$ 45 | ASIC fee (from 1 July 2025); required if trading under a name different from your personal or company name |
Business name registration (3 years) | A$ 104 | More cost-effective option to secure your name long-term |
Company registration (Proprietary Pty Ltd) | A$ 611 | One-off ASIC fee to register a company (if not operating as a sole trader) |
ABN registration | Free | Required to operate a business legally in Australia |
Website setup and platform | Variable | Depends on your choice between Shopify, WooCommerce, BigCommerce etc., design, hosting and customisations. |
Ongoing costs | Variable | Includes domain renewal, hosting, accounting software, payment processing, maintenance. |
What actually drives your costs
From a practical standpoint, the biggest cost isn’t registration, it’s how you choose to operate your business.
Your costs will vary significantly depending on:
- Whether you operate as a sole trader or company
- How much you invest in marketing and customer acquisition
- The number of tools and subscriptions you rely on
- Whether you set up accounting and compliance properly from day one
For example, while registering a business might cost under $700, the real first-year cost for a structured company setup (including compliance and accounting) can range from $1,600 to $6,000+ depending on complexity.
What licences or permits might you need?
In most cases, you don’t need a specific licence to start an online business in Australia, an ABN and the right business structure are usually enough.
However, additional licences or approvals may apply depending on what you sell. Common examples include:
- Food or beverages: May require local council registration and food safety compliance
- Cosmetics or health products: Must meet ingredient and labelling standards; stricter rules apply if making therapeutic claims
- Imported goods: Subject to customs, biosecurity, and product safety regulations
- Regulated products: Items like alcohol, tobacco, supplements, or certain electronics may require licences or approvals
Requirements can vary by industry and location, so it’s important to check business.gov.au or your local council if you’re unsure.
Failing to meet these requirements can lead to fines, product restrictions, or issues with payment providers, so it’s worth confirming early.
Mixing personal and business transactions is one of the fastest ways to create ATO issues. Without separation, tracking GST, deductions, and profit becomes inaccurate.
How Sleek can help you build and grow your online business
Building an online business is exciting but navigating registrations, taxes, and compliance can slow you down. Sleek simplifies every step so you can launch fast, stay compliant, and focus on growth.
Here’s how Sleek can help you:
- Set up your business the right way: Choose the ideal structure (sole trader, partnership, or company) and get expert guidance tailored to your goals.
- Register everything in one go: From your ABN and ACN to business name and GST, so you’re ready to trade confidently from day one.
- Stay ahead of tax and compliance deadlines with dedicated experts managing your BAS, tax returns, and filings, you’ll never miss a submission or penalty date again.
- Keep your business compliant as you grow: Let us handle ASIC updates, ATO obligations, and ongoing bookkeeping while you scale your store.
With Sleek, you get more than just setup support, you gain a proactive partner who keeps your business running smoothly behind the scenes. We handle the details so you can focus on what matters most: building your brand and growing your sales.
Ready to get started? Schedule a call now.
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Frequently Asked Questions
Can I sell internationally from my Australian online store?
Yes, but you’ll need to consider customs declarations, export rules, and tax obligations in destination countries. Some platforms like Shopify automate tax collection for overseas customers, but you should confirm compliance with each region’s ecommerce regulations.
Can I run an online store without registering a company?
Yes, you can start as a sole trader using your ABN. However, registering a company (Pty Ltd) gives you limited liability protection, access to company tax rates, and stronger business credibility. Sleek can help you decide which structure best fits your goals.
Do you need a licence for an online business in Australia?
Not every online business needs a specific licence but you must still comply with Australian Consumer Law, Privacy, and Fair Trading regulations. If you’re selling regulated goods (like food, cosmetics, alcohol, or health products), additional permits or state licences may apply. It’s best to check your local council for industry-specific requirements before you launch.
