How to Reduce Your Taxable Income

A lot of people ask the same question during tax season:

“How can I reduce my taxable income legally?”

It’s a smart question.

Reducing taxable income does not mean avoiding tax. It means using the tax rules correctly so you only pay what you actually owe — not more.

The ATO allows several legal ways to lower your taxable income, whether you're an employee, sole trader, investor, or small business owner.

Let’s go through the practical ways people do this in 2026.

What Does “Taxable Income” Mean?

Your taxable income is the amount the ATO uses to calculate how much tax you need to pay.

It usually includes:

• Salary or wages

• Business income

• Rental income

• Investment income

• Other assessable income

The lower your taxable income (legally), the lower your tax bill can be.

1. Claim Work-Related Deductions

This is the most common way people reduce taxable income.

You may be able to claim deductions for:

• Work-related travel

• Uniforms and protective clothing

• Phone and internet usage

• Home office expenses

• Tools and equipment

• Professional memberships

The important rule:

You must have spent the money yourself, and it must relate to earning your income.

2. Make Extra Super Contributions

One of the strongest legal tax strategies is making additional contributions to your superannuation.

This is often called:

Concessional Super Contributions

If done correctly, this can reduce your taxable income while also helping your retirement savings.

This is especially useful for:

• Employees with stable income

• Business owners

• High-income earners

Always check annual contribution caps before doing this.

3. Use Negative Gearing on Investment Property

If you own an investment property, negative gearing may reduce your taxable income.

This happens when:

Your property expenses are higher than your rental income.

Examples include:

• Loan interest

• Repairs

• Property management fees

• Depreciation

• Insurance

This is a common tax strategy, but it needs proper planning.

4. Prepay Deductible Expenses Before June 30

Timing matters.

Many business owners reduce taxable income by prepaying eligible expenses before the financial year ends.

This may include:

• Insurance

• Rent

• Professional subscriptions

• Accounting software

• Office supplies

This strategy is often used before 30 June to improve year-end tax outcomes.

5. Instant Asset Write-Off (For Small Businesses)

If you run a business, the instant asset write-off can be very valuable.

This may allow eligible businesses to claim deductions on assets like:

• Equipment

• Tools

• Work vehicles

• Technology purchases

Rules and thresholds change regularly, so checking current ATO updates is important.

2026 Tax Update You Should Know

From 1 July 2026, the government has proposed changes to personal income tax rates, including a reduction in the lower tax bracket.

The 16% tax rate is expected to reduce to 15%.

This means tax planning becomes even more important because small adjustments can create better savings.

Keeping your tax strategy updated matters.

Can You Reduce Taxable Income to Zero?

People often search:

“How do I decrease my taxable income to zero?”

In reality, for most people, the goal is not zero — it’s smart tax minimisation.

Trying to reduce everything to zero often leads to bad advice or risky decisions.

The better approach is:

• Claim what you're entitled to

• Use legal deductions

• Plan early

• Keep proper records

That’s sustainable and safe.

A Registered Tax Agent’s Tip

One mistake we often see is people rushing tax planning in June.

Good tax planning starts earlier.

Whether it’s super contributions, business purchases, or investment deductions, the best results usually come from planning before the deadline — not after it.

Common Mistakes to Avoid

• Claiming personal expenses as business deductions

• Ignoring receipts and records

• Missing super contribution deadlines

• Using overseas tax advice that does not apply here

• Waiting until the last week of June to plan tax

These mistakes can create bigger problems later.

Need Help With Tax Planning?

If you’re unsure what applies to your situation, getting advice early usually saves money.

You can explore our Personal Tax Services or Business Accounts page for more support.

Tax planning should feel simple — not stressful.

FAQs

How can I reduce my taxable income legally?

You can reduce taxable income through deductions, super contributions, negative gearing, and eligible business expenses approved by the ATO.

Can super contributions reduce taxable income?

Yes. Concessional super contributions can help reduce taxable income while building retirement savings.

What is the instant asset write-off?

It allows eligible businesses to claim deductions on business assets like tools, equipment, and vehicles, depending on ATO rules.

Can I reduce taxable income to zero?

Usually no. The goal should be legal tax minimisation, not unrealistic zero-tax strategies.