ATO focus areas and tax changes in 2026

Running a business in Australia has never been more data-driven. The Australian Taxation Office is increasingly sophisticated in how it monitors compliance, while at the same time, tax changes are reshaping how business owners take income and manage their obligations.

For small business owners and individuals alike, 2026 is not just another tax year. It is a period where enforcement is tightening, and planning decisions matter more than ever.

In this newsletter, we explore two critical areas:

• where the ATO is focusing its attention right now
• how recent tax changes affect your income, cash flow, and structure

We also walk through practical examples so you can see how these issues play out in real life.

What small businesses must fix before tax time 2026

The ATO has significantly expanded its data-matching capabilities. It now receives information from banks, payment platforms, employers, government agencies, and even online marketplaces.

This means that inconsistencies are no longer easily overlooked. Instead, they are flagged automatically.

Key risk areas under ATO scrutiny

Cash income and undeclared sales

Businesses operating in cash-heavy industries such as hospitality, trades, and retail are a major focus area.

The ATO compares:

• reported income on tax returns
• GST reported in BAS
• bank deposits
• industry benchmarks

If these do not align, the business may be flagged.

Mixing personal and business expenses

Another common issue is claiming private expenses as business deductions.

Typical examples include:

• personal motor vehicle use
• home expenses without proper apportionment
• lifestyle purchases are incorrectly classified as business costs

GST reporting inconsistencies

The ATO closely monitors BAS data, particularly:

• frequent amendments
• mismatches between GST collected and reported income
• irregular lodgement patterns

Repeated errors may trigger further scrutiny or force a change in reporting frequency.

Case study: café underreporting cash sales

A small café reports annual sales of $420,000. However:

• bank deposits show $470,000
• supplier purchases suggest higher turnover
• Industry benchmarks indicate an average revenue of $500,000 for similar businesses

The ATO flags the discrepancy.

After review, it was determined that $50,000 in cash sales was not declared.

Financial impact

Additional tax:

• Income tax on $50,000 (assume 25% company rate) = $12,500
• GST payable (1/11 of $50,000) = $4,545

Penalties and interest:

• Administrative penalties (up to 75% in serious cases)
• General interest charges

Total exposure could exceed $25,000.

Beyond the financial cost, the business may also be subject to ongoing monitoring.

Contractor vs employee risks

The distinction between contractors and employees remains a high-risk area.

Indicators of employment include:

• control over work hours
• provision of tools and equipment
• expectation of ongoing work

Misclassification can result in:

• unpaid PAYG withholding
• superannuation liabilities
• penalties and interest

Case study: tradie misclassification

A construction business engages a worker as a contractor for two years.

Payments total $160,000.

The ATO determines the worker is actually an employee.

Consequences

Superannuation:

• 12% SG on $160,000 = $19,200

SG charge penalties:

• interest and administration fees

PAYG withholding:

• employer may be liable for unpaid withholding

Total exposure can exceed $30,000.

New enforcement approach

The ATO is shifting from reactive audits to proactive intervention.

This includes:

• data-driven alerts
• “nudge” letters encouraging voluntary correction
• targeted reviews before lodgement

Businesses are often contacted before issues escalate.

What you should do now

Strengthen record-keeping

Ensure:

• all income is recorded
• expenses are supported by documentation
• bank accounts are reconciled regularly

Review BAS before lodgement

Check:

• GST collected matches sales
• input tax credits are valid
• no unusual fluctuations

Separate personal and business finances

Maintain:

• separate bank accounts
• clear expense categorisation
• proper apportionment for mixed-use items

Act early if there are errors

Voluntary disclosure:

• reduces penalties
• demonstrates good faith
• can significantly lower the financial impact

2026 tax changes explained: what they mean for your income

Alongside increased ATO scrutiny, tax changes are affecting how individuals and business owners are taxed.

These changes are not just theoretical. They directly impact:

• take-home income
• business cash flow
• structuring decisions

Personal income tax changes

Recent tax reforms have adjusted income tax brackets, particularly benefiting middle-income earners.

For many individuals, this results in:

• lower marginal tax rates
• higher disposable income
• reduced PAYG withholding

Case study: employee impact

Sarah earns $95,000 per year.

Under previous settings, part of her income was taxed at a higher marginal rate.

With revised brackets:

• her overall tax liability reduces
• her weekly take-home pay increases

Approximate impact

Tax saving:

• around $1,500 to $2,000 per year

This translates to:

• an additional $30–$40 per week

While modest individually, across households, this creates broader economic effects.

Business owner implications

For business owners, tax changes must be considered alongside:

• company tax rates
• trust distributions
• salary strategies

The key question is no longer just compliance. It is optimisation.

Case study: owner-operator strategy

James operates a small consulting business through a company.

Annual profit: $180,000

He has two options:

Option 1: take full salary

Salary: $180,000
Taxed at individual marginal rates

Estimated tax:

• approximately $55,000

Option 2: split between salary and dividends

Salary: $100,000
Company retains $80,000

Company tax:

• 25% of $80,000 = $20,000

Later dividend paid with franking credits.

Outcome

By structuring income:

• overall tax can be reduced
• cash flow can be managed more effectively

This demonstrates the importance of integrating personal and business tax planning.

PAYG withholding adjustments

Changes to tax rates also affect PAYG withholding.

Employers must ensure:

• payroll systems are updated
• withholding aligns with current rates

Failure to update systems can result in:

• under-withholding (leading to employee tax bills)
• over-withholding (affecting employee cash flow)

Case study: payroll misalignment

A small retail business fails to update PAYG tables.

Employees are under-withheld by $1,200 each over the year.

At tax time:

• employees face unexpected liabilities
• employer faces reputational issues

This highlights the importance of keeping payroll systems up to date.

Interaction with business decisions

Tax changes influence broader decisions, including:

Salary vs dividends

Lower personal tax rates may:

• make salary more attractive
• reduce the gap between individual and company taxation

Timing of income

Bringing income forward or deferring expenses may:

• change tax outcomes
• impact cash flow

Trust distributions

Adjusting distributions across family members can:

• optimise overall tax
• align with new marginal rates

Bringing it together: compliance and strategy

The two themes discussed in this newsletter are closely connected.

ATO enforcement focuses on:

• accuracy
• transparency
• consistency

Tax changes influence:

• how income is structured
• how much tax is paid
• when tax is paid

Businesses that succeed are those that:

• maintain strong compliance
• actively plan their tax position

Practical checklist for clients

As we move towards tax time 2026, consider the following actions:

Compliance

• reconcile all bank accounts
• ensure all income is declared
• review GST and BAS data
• confirm correct classification of workers

Payroll

• update PAYG withholding tables
• review superannuation obligations
• check payroll software settings

Planning

• review income structure
• consider timing of income and expenses
• evaluate use of companies or trusts

Risk management

• address any historical errors
• consider voluntary disclosures if needed
• seek advice before making major decisions

Final thoughts

The tax environment in Australia is becoming more sophisticated and more demanding.

For small businesses and individuals, this presents both challenges and opportunities.

The challenge is clear:

• increased visibility
• reduced tolerance for errors
• faster enforcement

The opportunity is equally important:

• better planning can reduce tax
• improved systems can reduce risk
• proactive advice can improve outcomes

The key is to act early.

Waiting until year-end is no longer sufficient. Businesses that review their position regularly and make informed decisions throughout the year will be in the strongest position.

If you are unsure where you stand, now is the right time to review your situation and ensure you are both compliant and optimised for the year ahead.