Tax Deductions for Consultants (Australia 2025-26)

General information only. Speak with a registered tax agent for advice.

Consultants — whether employed or operating under an ABN — have a broad range of deductions available, but the ATO scrutinises this occupation closely. Every claim must have a direct connection to earning your consulting income, be unreimbursed, and be backed by written evidence. Getting this right can easily put $2,000–$5,000+ back in your pocket at tax time.

What you can claim

Expense	Typical range	Key rule
Home office — fixed rate	67c per work hour	Requires a dedicated work area; keep a diary of hours for 4 continuous weeks per income year
Home office — actual cost	Varies (often higher)	Requires a dedicated room used exclusively for work; claim floor-area proportion of rent/mortgage interest, electricity, and depreciation
Laptop / desktop computer	Work-use % of cost	Items over $300 must be depreciated; items $300 or under can be written off immediately
Phone and internet	Work portion only	Apportion using a 4-week representative period; reasonable methods include itemised bills or a diary
Professional memberships	Full cost	Must be directly relevant to your current consulting work (e.g., CPA Australia, AICD)
Professional development courses	Full cost	Must maintain or improve skills for your current role, not qualify you for a new career
Professional indemnity insurance	Full cost (contractors)	Deductible where you hold the policy in your own name as a contractor or sole trader
Travel to client sites	Full cost	Claimable if travelling from home or between clients; not claimable for travel from home to a regular fixed office
Accounting and tax agent fees	Full cost	Includes fees for preparing your tax return and managing ABN/GST obligations
Stationery, printer ink, paper	Work portion	Keep receipts; minor items under $10 may be claimed without individual receipts if total is under $200
Software subscriptions	Work portion	Includes project management tools, communication platforms, and industry-specific software
Certifications and licences	Full cost	Where required or directly relevant to your consulting practice

What you cannot claim

• Business suits and corporate wear. The ATO is firm on this: conventional clothing that can be worn outside work — including suits, formal shirts, and ties — is not deductible, even if you only wear it for client meetings.
• Client entertainment. Meals, drinks, or event tickets for clients are specifically excluded under s 32-5 of ITAA 1997. There are no exceptions for consultants.
• MBA or career-change study. If a course is designed to qualify you for a new profession rather than maintain your existing consulting skills, it is not deductible — even if it makes you a better consultant.
• Home expenses without a dedicated workspace. If you work from the kitchen table or a shared space, you cannot claim the actual-cost home office method. You are limited to the 67c/hour fixed rate.
• Reimbursed expenses. Any cost your client or employer has paid or will pay back to you must be excluded entirely.

Worked example

Priya is an independent management consultant operating under an ABN. Her gross consulting income for 2025-26 is $145,000.

Deduction	Amount
Home office (67c/hr × 1,600 hrs)	$1,072
Laptop (80% work use, $2,400 cost)	$1,920
Phone and internet (60% work)	$960
Professional memberships (AICD, CPA)	$1,150
Professional development course	$1,800
Professional indemnity insurance	$2,200
Accounting fees	$550
Stationery and software	$380
Total deductions	$10,032

At a marginal tax rate of 39% (including Medicare levy), Priya’s total deductions reduce her tax bill by approximately $3,912.

ATO audit triggers

• High home office claims without a dedicated room. The ATO cross-references claims against property type and has flagged cases where renters of small apartments claim large actual-cost home office deductions.
• 100% phone or internet claims. Claiming your full phone or internet bill without any private-use apportionment is a common flag. Very few consultants use these services 100% for work.
• Travel claims without logbooks or diaries. Claiming client travel without supporting records — calendars, invoices, or travel receipts — is a quick way to trigger a review.
• Unusually large deduction-to-income ratios. The ATO uses benchmarking data across occupations. Consultant deduction claims that significantly exceed the norm for your income band attract closer attention.

Records you need

• Home office diary covering at least 4 continuous representative weeks, showing hours worked from home each day.
• Receipts and invoices for all claims over $10 (and totals over $200 in a category).
• Bank or credit card statements to corroborate expenses where receipts are missing.
• Phone/internet usage logs or bills showing the basis for your work-use percentage.
• Calendar or client records demonstrating travel was for work purposes (dates, destinations, purpose).
• Depreciation schedule if you are claiming work-related assets over $300 over multiple years.

Key takeaways

• The 67c/hour fixed rate is the simplest home office method and does not require a dedicated room — useful if you work in a shared space.
• Equipment over $300 must be depreciated; you can only claim the work-use percentage.
• Entertainment for clients is never deductible — do not include it regardless of how it was described on the invoice.
• Keep records for five years from when you lodge your return; the ATO can review claims well after the original lodgement.

Sources

• ATO occupation and industry guides hub
• ATO working from home deductions
• ATO claiming deductions 2025
• ATO work-related self-education expenses
• Legislative anchor: ITAA 1997 s 8-1, s 32-5, and Div 900

Next step

• Estimate your refund with the Tax Return Calculator
• Model your taxable income with the Income Tax Calculator

Occupation guides

• Tax for Consultants — ABN income, PSI, GST, home office
• Tax for Marketing Consultants — PSI, software, ad costs
• Tax for IT Contractors — PSI, contractor vs employee, software