How Much Tax Do I Pay On ABN?

Written by: Brendan Thorp, CPA | Fact Checked by: Daniel Heness, CPA

The question of how much tax you pay when operating under an Australian Business Number (ABN) is common, especially for those juggling both ABN and Tax File Number (TFN) obligations. Understanding your tax responsibilities under an ABN is crucial whether you’re a sole trader, contractor, or small business owner. This blog post will guide you through everything you need about paying tax on an ABN in Australia.

Let’s get straight to the point

Operating under an Australian Business Number (ABN) means you must manage your tax obligations, as tax is not automatically deducted from your income. You need to set aside a portion of your earnings for tax, which is calculated based on your total income, including ABN income, and subject to Australia’s progressive tax rates once you exceed the $18,200 tax-free threshold.

Different business structures—sole traders, partnerships, companies, and trusts—have specific tax reporting requirements. Keeping accurate records, setting aside funds for tax, and timely filing of tax returns and Business Activity Statements (BAS) are essential.

Seeking professional advice can help ensure you meet all tax obligations effectively.

What is an ABN?

An Australian Business Number (ABN) is an 11-digit identifier unique to your business. It’s required for anyone operating a business or engaging in business activities in Australia.

This number is essential for invoicing, tax purposes, and other commercial activities. An ABN distinguishes your business from others and is necessary for legal and administrative functions.

Who Needs an ABN?

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If you are running a business or an enterprise in Australia, you need an ABN. This includes sole traders, partnerships, companies, and trusts.

However, you may not require an ABN if your activities are more of a hobby than a business. Determining whether you need an ABN depends on the nature of your activities and your intentions to make a profit.

How is Tax Calculated on ABN Income?

No Tax Deducted at the Source

When you operate under an ABN, tax is not automatically deducted from your income, unlike when you work under a TFN. This means that when you receive payments for your services or goods, you get the full amount, and it’s your responsibility to set aside a portion of that income to cover your tax obligations at the end of the financial year.

Combining ABN Income with Other Income

At the end of the financial year, you must report all your income, including any earned under an ABN, when filing your tax return. The Australian Tax Office (ATO) will assess your total income, and you’ll be taxed based on the combined amount.

It’s important to remember that the tax-free threshold of $18,200 applies to your total income, not just your ABN income. You will be subject to progressive tax rates if your combined income exceeds this threshold.

Tax Obligations for Different Business Structures

1. Sole Traders

If you are a sole trader, you must lodge an individual tax return and include a business schedule to report your business income and expenses. As a sole trader, your ABN income is combined with any other income you earn, and you’ll be taxed at the individual income tax rates.

2. Partnerships

In a partnership, the business itself doesn’t pay income tax. Instead, each partner reports their share of the partnership’s income in their individual tax returns.

The partnership will still need to lodge a tax return to show how the partners distributed the income.

3. Companies

For companies, income tax is paid at the company tax rate. The company will lodge its tax return and pay tax on its profits.

The company’s ABN is used to report and pay its tax obligations.

4. Trusts

Trusts must lodge a tax return and are taxed on any income not distributed to beneficiaries. If the trust distributes income to beneficiaries, they must include it in their tax returns and pay tax at their applicable rates.

How to Manage Your Tax Payments

1. Setting Aside Money for Tax

Because tax is not deducted from the source of ABN income, it’s important to set aside money regularly to cover your tax obligations. A common practice is to set aside around 25-30% of your income for tax purposes, depending on your expected total income and tax bracket.

2. Filing a Tax Return

You must file a tax return annually that includes all your ABN income. Depending on your business structure, you may also need to submit business activity statements (BAS) throughout the year to report and pay other taxes like Goods and Services Tax (GST) and Pay As You Go (PAYG) instalments.

3. Business Activity Statements (BAS)

If registered for GST, you must lodge a BAS, typically quarterly. This statement covers GST, PAYG withholding, and other taxes.

Lodging your BAS accurately and on time is crucial to avoid penalties and meet your tax obligations.

Tax-Free Threshold and ABN Income

1. Understanding the Tax-Free Threshold

The tax-free threshold in Australia is $18,200, meaning you won’t pay income tax if your total income is below this amount. However, this threshold applies to your total income, not just your ABN income.

If your combined income from all sources exceeds $18,200, you’ll pay tax on the amount above this threshold.

2. Impact of Exceeding the Threshold

If your ABN income and other income exceeds $18,200, you’ll be subject to Australia’s progressive tax rates. These rates increase as your income rises, so keeping track of your earnings throughout the year and preparing for your tax obligations is important.

Key Considerations When Operating with an ABN

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1. Record Keeping and Deductions

Maintaining accurate records is essential when operating under an ABN. Keep detailed records of all income and expenses to ensure you can claim all eligible deductions. Common deductions for ABN holders include business expenses like office supplies, travel, and equipment.

Proper record-keeping also simplifies the process of lodging your tax return and BAS.

2. Seeking Professional Advice

Tax laws and obligations can be complex, especially when juggling income from different sources. Consider seeking advice from a registered tax agent or accountant to ensure you meet all your tax obligations and take advantage of any available deductions.

Conclusion

Operating under an ABN comes with specific tax responsibilities that differ from those under a TFN. Understanding how tax is calculated on ABN income, setting aside funds for tax payments, and staying on top of your reporting obligations are key to managing your tax effectively.

By staying informed and organised, you can ensure that you meet your tax obligations and avoid any unexpected tax bills at the end of the financial year.

FAQs

What Is An ABN, And How Does It Affect My Tax Obligations?

An ABN (Australian Business Number) is required for business operations in Australia. It ensures you’re properly registered and helps manage your tax obligations.

How Is Income Tax Calculated For ABN Holders?

Income tax is calculated based on your taxable income from the business. Rates vary depending on individual income tax brackets and allowable deductions.

Do I Need To Pay Gst If I Have An ABN?

If your annual turnover exceeds $75,000, you must register for GST and pay 10% on taxable sales, which you can pass on to customers.

Can I Claim Deductions On Expenses Incurred Under An ABN?

Yes, you can claim deductions for business-related expenses such as supplies, utilities, and travel, which lower your taxable income.

Do I Need To Pay Superannuation As An ABN Holder?

If you’re self-employed, you’re not required to pay superannuation for yourself, but it’s recommended for future financial security. Employees must be paid super if applicable.

Brendan Thorp is a Director and Business Advisory Specialist at Bookkept, bringing eight years of dedicated experience in tax and small business advisory. As a Certified Practising Accountant and registered Tax Agent, he specialises in helping businesses optimise their operations through strategic financial solutions and digital transformation. Brendan holds dual qualifications from the University of Newcastle in Commerce and Business, and is known for his ability to translate complex tax regulations into actionable business strategies. When he's not advising clients across various industries from hospitality to healthcare, you'll find him actively engaged in community leadership through local sporting clubs and professional associations.

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