Most Australians want the same thing at tax time: to claim every deduction they are entitled to, without creating problems later. Whether you are an employee, sole trader or business owner, the best way to maximise your tax return is not to chase a list of “tax hacks”. It is to identify legitimate expenses, separate business and private costs properly, and keep records that support the claim.
A deduction does not automatically produce a dollar-for-dollar refund. It reduces taxable income where the tax law allows it. The value of a deduction depends on your overall circumstances, including your income, entity structure, GST position and the nature of the expense.
The starting point is simple: an expense generally needs a clear connection to earning assessable income or carrying on a business. It must not be private, domestic or capital in nature unless another rule specifically allows a deduction, such as depreciation for an asset that declines in value over time.
Start with the right mindset: claim what you can prove
The strongest tax return is one that is complete, accurate and supported by evidence. A claim should make commercial sense when viewed alongside your occupation, business activities and income.
For employees, the usual test is whether you paid for the expense yourself, were not reimbursed, and can show a direct connection between the expense and earning employment income.
For sole traders and business owners, the expense must relate to operating the business and generating business income. If an expense has both business and private elements, only the business portion may be claimed.
This is particularly important for costs that are often mixed-use, including:
– mobile phones and internet
– motor vehicles
– home office expenses
– computers and software
– travel
– tools and equipment
– subscriptions and memberships
– rent and utilities for home-based businesses.
A bank statement can help show that a payment was made, but it may not establish what the payment was for or how it relates to income. Keep invoices, receipts, contracts, diary notes, logbooks and calculations that explain the claim.
A practical rule is to record expenses as you incur them rather than reconstructing them at EOFY. This makes it easier to identify legitimate deductions and reduces the risk of overlooking something important.
Smart deductions for employees and individual taxpayers
Work-related deductions are not one-size-fits-all. What is deductible for a tradesperson, health professional or salesperson may be different from what is deductible for an office-based employee.
Common areas worth reviewing include the following.
Work-related tools, equipment and technology
You may be able to claim the work-related portion of tools, equipment, computers, monitors, software, protective items and other assets used to perform your job.
Smaller eligible items may be deductible immediately, while more substantial assets may need to be claimed over time as their value declines. Where an item is used partly for work and partly privately, the claim needs to be apportioned on a fair and reasonable basis.
For example, if you purchase a laptop used for both paid work and personal streaming or study, you cannot simply claim the full purchase price. You need a reasonable basis for identifying the work-related use.
Working from home expenses
Working from home can create deductible running expenses if you work from home to carry out your employment duties, not merely because it is convenient.
There are generally two ways to work out a working-from-home deduction:
– a fixed-rate approach, provided the relevant eligibility and record-keeping requirements are met
– an actual-cost approach, based on the additional expenses incurred and supported by detailed calculations.
Depending on the method used, relevant expenses can include energy, internet, mobile and home phone use, stationery, computer consumables and the decline in value of eligible equipment. However, you cannot claim the same cost twice under different methods.
The records matter as much as the method. Keep a reliable record of the hours worked from home, as well as evidence of the relevant bills and purchases. Estimates made at tax time are rarely a sound basis for a claim.
For most employees, rent, mortgage interest, rates and home insurance remain private living costs. The position can be different for a genuine home-based business with a dedicated place of business, but this area requires care because it can also affect the capital gains tax treatment of the home when it is sold.
Vehicle, travel and parking costs
Work-related travel can be deductible when it occurs in the course of performing your work. Examples may include travelling between workplaces, visiting clients, attending a work-related conference, or travelling from a workplace to another work location.
Ordinary travel between home and a regular workplace is generally private, even if you answer emails before leaving home or take work home at night. There are limited exceptions, but they depend on the facts.
For eligible car expenses, individuals may generally use either a cents-per-kilometre method or a logbook method. The cents-per-kilometre method has an annual kilometre limit and uses a rate set for the relevant income year. The logbook method can be more appropriate where business use is substantial, but it requires more detailed records.
Parking, tolls, public transport, taxi or rideshare costs and overnight travel expenses may also be relevant in the right circumstances. If a trip includes both work and private activities, the private component must be excluded.
Clothing, training and professional costs
A common misconception is that any clothing worn to work is deductible. Ordinary clothing is usually private, even if an employer requires a certain standard of dress.
The position may be different for protective clothing, occupation-specific clothing, or distinctive compulsory uniforms. Laundry and repair costs may also be deductible where the underlying clothing itself qualifies.
Other expenses to review include:
– work-related licences, registrations and renewals
– professional memberships
– union fees
– relevant journals and subscriptions
– seminars and courses that maintain or improve skills used in your current income-producing work
– income protection insurance premiums, where the policy covers the loss of income rather than a capital benefit
– the cost of managing tax affairs, including eligible registered tax agent fees.
Education expenses need a close connection with your existing employment or income-producing activities. A course that helps you move into a new occupation or start a new business may not be deductible merely because it could improve future earning potential.
Sole traders: separate yourself from the business
A sole trader is the business, legally and for income tax purposes. This makes clean record keeping essential because personal spending and business spending can easily become mixed.
As a sole trader, you generally report business income and expenses in your individual tax return. You cannot claim drawings, cash taken from the business, or items used privately as business deductions.
A useful first step is to maintain a separate business bank account and use it consistently. It is not compulsory in every situation, but it makes bookkeeping, BAS preparation and year-end reporting much easier.
Review the following categories throughout the year:
– advertising, website costs and business software
– accounting, bookkeeping and legal expenses related to the business
– insurance for business assets, public liability or professional risks
– premises costs and utilities
– contractor payments and employee costs
– merchant fees and bank charges
– business phone and internet expenses
– materials, supplies and consumables
– work-related travel and vehicle costs
– equipment and asset purchases
– training that is relevant to the existing business.
If you use stock, products or services from the business for private purposes, do not simply treat the cost as a deductible business expense. Private use can have income tax and GST consequences, depending on the circumstances.
Sole traders should also be alert to the personal services income rules. If most income is generated mainly from an individual’s personal efforts or skills, special rules may restrict some deductions and affect how income is attributed. This is an area where tailored advice is particularly valuable.
Business owners: get the entity, timing and depreciation right
Companies, trusts and partnerships have different reporting and tax obligations from sole traders. One of the most common errors in small businesses is assuming that an owner can personally claim an expense simply because it relates to the business.
The correct claimant is usually the entity that incurred the expense. For example, if a company pays for equipment, software or premises costs, the company generally claims the deduction, not the shareholder or director personally.
Likewise, money taken from a company is not automatically a deductible business expense or tax-free income to the recipient. Payments to owners need to be correctly characterised and documented. Depending on the structure and circumstances, this may involve salary and wages, dividends, loans, trust distributions or reimbursements.
For business owners, a well-organised EOFY review should consider:
– unpaid invoices and whether debts are genuinely recoverable
– stock on hand and inventory records
– accrued expenses and income
– prepaid expenses
– repairs compared with improvements or replacements
– employee entitlements and superannuation obligations
– asset purchases, disposals and depreciation schedules
– private use of company or trust assets
– loans between owners, shareholders, trusts and companies.
Depreciation is especially important. Assets that provide an ongoing benefit, such as machinery, computers, furniture, vehicles and specialised equipment, may not always be immediately deductible. Instead, a deduction may be available over time for the decline in value.
Eligible small businesses may be able to use simplified depreciation rules, including an instant asset write-off for qualifying assets. However, the eligibility rules, asset limits, exclusions and thresholds can change between income years. Before relying on an immediate deduction, confirm the rule that applies to the relevant year and whether the business is eligible to use the simplified depreciation rules.
If your business is registered for GST and can claim an input tax credit, income tax deductions are generally worked out excluding the GST component that has been claimed. This is one reason why your BAS records and income tax records need to align.
Do not overlook home-based business expenses
Many sole traders and small business owners work from home, whether full-time or for administration, client communication and bookkeeping. This can create legitimate deductions, but it can also create confusion.
Home-based business expenses broadly fall into two groups:
– running expenses, such as heating, cooling, lighting, cleaning, phone, internet, equipment and office furniture
– occupancy expenses, such as rent, mortgage interest, rates and home insurance.
Running expenses may be available where part of the home is used for business activities. Occupancy expenses are more restricted and often depend on whether part of the home has the character of a genuine place of business, rather than simply being a convenient place to work.
A dedicated room used exclusively or almost exclusively for business, particularly where clients attend, may be treated differently from a laptop used at the kitchen table after hours. The distinction matters because claiming occupancy expenses can affect the main-residence capital gains tax exemption when the property is later sold.
Keep records that show:
– the business use of the space
– the hours or area used
– how mixed expenses were apportioned
– the bills, invoices and ownership records supporting the claim.
Superannuation can be a useful tax planning tool, but get the process right
Personal superannuation contributions can be deductible for eligible individuals, including employees, sole traders and some business owners. However, a tax deduction is not created simply by transferring money into a super fund.
To claim a personal contribution deduction, you must satisfy the relevant conditions. This includes giving the fund a valid notice of intent to claim a deduction and receiving an acknowledgement from the fund before claiming it in your tax return. There are also timing requirements, age-related rules and limits on what can be claimed.
A personal deductible contribution counts towards the concessional contribution rules. That means it should be considered alongside employer contributions, salary-sacrifice arrangements and any unused concessional cap amounts that may be available under the carry-forward rules.
Before making a contribution near EOFY, check that:
– the fund can accept the contribution
– the money will be received by the fund in time
– you have capacity under the applicable contribution rules
– the contribution suits your cash flow and retirement strategy
– the notice of intent process will be completed correctly.
Superannuation can be an effective part of tax planning, but it should not be treated as a last-minute deduction without considering the wider financial consequences.
A practical EOFY scenario
Consider a self-employed consultant who works partly from home, travels to client sites and uses a personal mobile phone, laptop and car for the business.
Rather than waiting until June, they keep invoices for software, professional insurance, client travel, supplies and equipment. They maintain a clear record of working-from-home hours, use a mileage diary or logbook for business travel, and calculate the business-use percentage for their phone and laptop.
Before lodging, they review whether any equipment should be depreciated or is eligible for an immediate deduction under the rules applicable to that income year. They also check whether a personal super contribution is appropriate, complete the required notice process and ensure their bookkeeping matches their BAS records.
The result is not an artificially inflated claim. It is a more complete, better-supported return that reflects the genuine costs of earning income.
Make tax planning part of your normal business routine
Maximising your tax return is usually the outcome of good habits, not a scramble at EOFY. Track income and expenses consistently, keep evidence as you go, separate private and business costs, and review major purchases before committing to them.
For individuals, that may mean maintaining records for work-related expenses and checking that deductions reflect the actual demands of the role. For sole traders and business owners, it means accurate bookkeeping, clean entity records and forward planning around equipment, superannuation, GST, payroll and cash flow.
The key takeaway is simple: claim every deduction you are genuinely entitled to, but only where you can explain and support it. If you would like help reviewing your deductions, business structure or EOFY tax position, the team at can provide advice tailored to your circumstances.
This article is general information only and is not personal financial or tax advice. Tax outcomes depend on individual circumstances, so speak with a registered tax agent or accountant, such as, before making decisions or lodging a claim.