Top Tax Deductions for Small Businesses in Australia (2026 Update)

January 2, 2026    Accountant Perthwa

Running a small business in Australia has never been more demanding. Rising operating costs, tighter cash flow, and increased compliance requirements mean every dollar matters. One of the most effective ways to reduce your tax bill legally is by understanding what you can claim as a tax deduction and how to do it correctly.

This 2026 update breaks down the most valuable tax deductions available to Australian small businesses, explains common mistakes to avoid, and highlights how professional guidance can help you stay compliant with the ATO while maximising savings.

Whether you’re a sole trader, partnership, company, or trust, this guide will help you plan smarter and pay only what you owe.

What Is a Tax Deduction?

A tax deduction is an expense your business incurs while earning assessable income. These expenses reduce your taxable income, meaning you pay less tax overall.

To be deductible under Australian tax law:

  • The expense must be directly related to earning income
  • It must not be private or domestic
  • You must have records to support the claim

If an expense is partly business and partly personal, only the business portion can be claimed.

1. Operating and Running Costs

Everyday operating expenses form the backbone of most business deductions.

Common deductible expenses include:

  • Rent or lease payments
  • Electricity, gas, water, and internet
  • Business phone usage
  • Office stationery and printing
  • Cleaning and maintenance
  • Bank fees on business accounts

For home-based businesses, you may also claim a portion of household expenses such as electricity and internet, based on actual business use.

2. Employee Wages, Superannuation & Payroll Costs

If you employ staff, many payroll-related expenses are deductible, including:

  • Employee wages and salaries
  • Superannuation contributions (paid on time)
  • Workers compensation insurance
  • Payroll tax (if applicable)
  • Training and recruitment costs

Businesses using STP-enabled payroll systems often rely on a BAS accountant to ensure reporting is accurate and compliant with ATO requirements.

3. Motor Vehicle and Travel Deductions

Vehicle expenses are commonly claimed and frequently audited.

You may be eligible to claim:

  • Fuel and oil
  • Repairs and servicing
  • Registration and insurance
  • Lease or depreciation costs
  • Parking and tolls (business use only)

You can claim vehicle expenses using:

  • The logbook method
  • The cents per kilometre method

Keeping detailed records is critical. Incorrect claims are a red flag for audits.

4. Depreciation and Asset Write-Offs (2026 Rules)

Assets such as equipment, furniture, and technology used in your business can be depreciated over time.

Examples include:

  • Computers and laptops
  • Tools and machinery
  • Office furniture
  • POS systems

Depending on current thresholds, eligible assets may be:

  • Written off immediately
  • Pooled and depreciated over time

Asset depreciation planning is best handled with a business tax accountant to ensure compliance and optimal tax timing.

5. Professional Fees and Advisory Services

Fees paid for professional services are fully deductible when related to business operations, including:

  • Accounting and bookkeeping fees
  • Legal advice
  • Tax return preparation
  • Business consulting

Understanding the cost to hire a tax accountant can help business owners budget effectively while ensuring deductions are maximised and errors avoided.

6. Marketing, Advertising & Online Presence

Marketing expenses are 100% deductible if incurred for business promotion.

This includes:

  • Website development and hosting
  • SEO and digital advertising
  • Google Ads and social media ads
  • Branding and graphic design
  • Printing flyers or signage

With online competition increasing, marketing deductions play a vital role in business growth strategies.

7. Insurance Premiums

Insurance policies related to your business are deductible, such as:

  • Public liability insurance
  • Professional indemnity insurance
  • Business interruption insurance
  • Income protection (for business-related coverage)

Personal insurance policies remain non-deductible.

8. Business Software, Subscriptions & Technology

Cloud-based tools are now essential for Australian businesses.

Deductible software expenses include:

  • Accounting software subscriptions
  • Payroll platforms
  • CRM systems
  • Project management tools
  • Cybersecurity services

If you’re unsure how these relate to your reporting obligations, learning what is BAS and how to lodge can clarify which expenses belong in each reporting cycle.

9. Business Use of Home Deductions

If you operate your business from home, you may claim:

  • Electricity and gas (business percentage)
  • Internet and phone usage
  • Office furniture depreciation
  • Rent or mortgage interest (proportional use)

Accurate calculation methods and evidence are essential to avoid overclaiming.

10. Education, Training & Skills Development

Expenses for improving business-related skills are deductible, including:

  • Online courses
  • Industry workshops
  • Conferences and seminars
  • Professional memberships

The training must relate directly to your current business activities.

11. Interest, Finance & Banking Costs

You may claim deductions for:

  • Interest on business loans
  • Merchant fees
  • Overdraft fees
  • Business credit card interest

Loan repayments must be split between principal and interest, as only the interest portion is deductible.

12. Capital Gains Tax Planning Opportunities

Selling business assets, property, or shares may trigger CGT. However, small businesses can access concessions that significantly reduce tax.

Proper planning around asset disposal and structure can show you how to save on capital gains tax legally while remaining compliant with ATO regulations.

Common Tax Deduction Mistakes to Avoid

Many small businesses overpay tax due to simple errors:

  • Claiming private expenses as business costs
  • Missing deductions due to poor record-keeping
  • Incorrect vehicle claims
  • Late superannuation payments (non-deductible)
  • Not seeking professional advice

Working with a small business accountant Perth ensures deductions are accurate, substantiated, and optimised.

Record-Keeping Requirements for 2026

The ATO requires businesses to keep records for at least five years, including:

  • Tax invoices
  • Bank statements
  • Receipts
  • Payroll records
  • Asset purchase documentation

Digital record-keeping systems are strongly recommended and help simplify audits.

Why Professional Tax Advice Matters

Tax law changes frequently, and deductions that were allowed previously may no longer apply. A qualified tax accountant Perth businesses trust can:

  • Identify overlooked deductions
  • Ensure ATO compliance
  • Reduce audit risk
  • Improve cash flow planning
  • Align tax strategy with business growth goals

Final Thoughts

Claiming the right tax deductions isn’t about cutting corners it’s about understanding your entitlements under Australian tax law. With rising costs and increased scrutiny from the ATO, proactive tax planning is essential for small business success in 2026.

By keeping accurate records, understanding deductible expenses, and seeking expert guidance when needed, you can reduce your tax burden while focusing on what matters most growing your business.

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