💻 Software Engineer Tax Deductions Australia
Developers, Engineers & Architects — your complete 2026 ATO guide.
Last updated: May 2026
If you work as a software engineer in Australia, you're entitled to claim a deduction for many of the costs you incur doing your job. The ATO has specific rules about what counts and what doesn't — and getting it right can mean a meaningfully bigger refund. This guide covers every tax deduction available to Australian software engineers for the 2025–26 financial year, based on published ATO guidance for the Technology sector. We break down what's fully deductible, what's partially deductible (and how to apportion it), and what to avoid claiming.
The 3 ATO golden rules
To claim a work-related deduction, you must meet all three:
- You paid for it personally and weren't reimbursed.
- The expense directly relates to earning your income.
- You have a record (usually a receipt).
✅ Fully deductible 9 items
Professional development courses and certifications
Training that maintains or improves your software engineering skills is deductible.
Work-related technical books and subscriptions
Technical books, docs, and subscriptions used for your role are deductible.
Professional association fees
Membership fees to professional bodies related to your IT role are deductible.
Domain names and hosting (work-related projects)
Domain and hosting costs for work-related or portfolio projects are deductible.
Software licences and developer tools
Software used for your engineering work that is not reimbursed is deductible.
Work-related conference and event fees
Conferences directly related to your engineering work are deductible.
Ergonomic equipment (chair, desk, keyboard)
Ergonomic equipment used exclusively for work purposes is deductible.
External monitors used for work
Monitors purchased for work use are deductible at the work-use percentage.
Stationery and office supplies
Work-related stationery purchased for your home office is deductible.
⚠️ Partially deductible 6 items
These costs are split between work and private use. You can only claim the work-use percentage — keep a 4-week diary or 12-week logbook.
Laptop or computer (work-related use)
The work-related proportion of a computer used for engineering work is deductible.
Home internet (work-related use)
The work-related proportion of your internet plan is deductible.
Mobile phone (work-related calls and data)
Work-related usage of your phone for coding or meetings is partly deductible.
Home office running costs
Home office costs for your dedicated workspace are partly deductible.
Cloud services and SaaS (work-related)
The work-related portion of cloud tools used for development is deductible.
Work-related travel and transport
Travel to client sites or different work locations is deductible.
❌ Not deductible 5 items
Common audit traps. Claiming these can trigger ATO review and penalties.
Personal gaming equipment
Gaming hardware is a personal expense and not deductible unless exclusively work-related.
Home-to-office commute
Travel from home to your regular workplace is private and not deductible.
General clothing
Clothing worn to work is not deductible under ATO rules.
Personal streaming subscriptions
Entertainment subscriptions are private in nature and not deductible.
Meals during regular work hours
Meals consumed during ordinary work hours are a private expense.
Need help lodging your return?
ALI Tax's qualified agents handle returns Australia-wide. Average refund: $2,847.
Get started with ALI Tax →Frequently asked questions
What's the simplest way to track software engineer deductions during the year?
Keep a separate folder or app (like Receipt Bank or your phone's notes) and capture every work-related receipt as you spend. The 'shoebox approach' costs most software engineers thousands in lost refunds each year.
Can I claim something my employer reimbursed?
No. If you've been reimbursed (or it was salary-packaged), you can't claim a deduction for it as well.
Do I need receipts for everything?
You need a receipt or written record for any deduction. For laundry up to $150 and small expenses up to $300 in total, you can use the ATO simplified methods without keeping every receipt.
What's the difference between deductible and partial?
Fully deductible means you can claim 100% of the cost. Partial means it's split between work and private use — you can only claim the work-use percentage based on a diary or logbook.
How long do I need to keep my receipts?
Five years from the date you lodge your tax return. The ATO can ask for records anytime in that window.