Home Office Tax Deductions in Australia Business Owners Need to Know

Running your business from home? Understanding home office tax deductions can significantly reduce your taxable income each year, and ensure you’re claiming every dollar you’re legitimately entitled to.

Whether you’re claiming home office expenses using the fixed rate method or tracking actual costs, this guide breaks down everything Australian business owners need to know about home business tax deductions. Grab a cuppa, and let’s make sense of what you can claim while working in your trackies.

A quick note on who this guide covers: The rules for working from home deductions differ depending on your situation. This guide covers both employees working from home and business owners or sole traders operating from home. Where the rules differ, we’ve flagged it clearly.

How is a Home Office Defined?

Before we delve too deeply into what is deductible and what is not, let’s get one thing straight – what exactly is a home office? You may be asking yourself, “Would my kitchen table be classified as a home office?”

The ATO allows you to claim working from home deductions whether you use a dedicated room or a shared space such as a kitchen table or dining area. You do not need a dedicated home office to claim running expenses. However, having a dedicated workspace becomes important when considering occupancy expenses and capital gains tax (CGT) implications, more on that below.

When it comes to claiming home office deductions for taxes, the ATO recognises three different working arrangements:

1. Home is your principal place of business (e.g., a hairdresser with a salon in their garage)
2. Home is a base of operations (e.g., a tradie who does paperwork at home but works on-site)
3. You have a separate work area at home (e.g., a spare room converted into an office)

Now, when it comes to expenses, the ATO categorises them into two main types:

1. Occupancy expenses: These relate to owning or renting your home (e.g., mortgage interest, rent, council rates)
2. Running expenses: These are the costs of using your home for work (e.g., electricity, phone, internet)

What Home Office Expenses Can You Claim?

Let’s get to the fun stuff. The beauty of home office tax deductions in Australia is that they cover more than you might think. Here’s what the ATO allows business owners to claim:

 Here’s a list that will make your accountant happy:

• Heating, cooling, and lighting
• Cleaning costs for your work area
• Depreciation of office furniture and equipment
• Computer consumables (e.g., printer ink) and stationery
• Phone and internet expenses
• Depreciation of computers and other electronic devices

Common Deductible Expenses

Common Deductible Expenses

Now, let’s break it down based on the three types of home-based businesses we mentioned earlier:

How you work
What you can claim	Home is your place of business or work and you have a home work area	Home is not your place of business but you have a home work area	You work at home but you don’t have a home work area
Occupancy expenses (Cost of owning or renting the house)	Yes	No	No
Running expenses (Cost of using a room, such as gas/electricity)	Yes	Yes	Yes
Business phone costs	Yes	Yes	Yes
Decline in value of office plant and equipment (desks, chairs, computers)	Yes	Yes	Yes — you can claim decline in value of equipment used to earn income (e.g. a laptop used at the kitchen table), even without a dedicated work area
Depreciation of curtains, carpets, light fittings, etc.	Yes	Yes	No

Why Are These Deductions Important for Business Owners?

You might be wondering, “Why should I bother with all this?” Well, there are three compelling reasons:

1. Reduce taxable income: As a result of legitimate claims of deductions, you decrease your taxable income. This means you’ll pay less tax, keeping more money in your pocket. Who doesn’t want that?
2. Reflect business costs: These deductions help accurately represent the real costs of running your business. It isn’t all about cost-cutting; it is also about showing the right level of expenses for the business.
3. Improve business’s cash flow: With lower tax bills, you’ll have more cash available to reinvest in your business, whether that’s upgrading your equipment or scaling your operations.

How to Calculate Home Office Deductions?

Now, here’s where it gets a bit tricky. The ATO offers two methods for calculating your home office deductions. Let’s break them down:

Method 1: Fixed Rate Method

This is the simpler way to calculate your home office deduction, perfect if you don’t want to spend hours tracking individual home office expenses. Here’s how it works:

For the 2024-25 income year, you can claim 70 cents per hour for each hour you work from home (this was 67 cents in 2022-23 and 2023-24).

From the 2022–23 income year onwards, the revised fixed rate covers:

• Electricity and gas (heating, cooling, lighting)
• Internet expenses
• Phone expenses
• Stationery and computer consumables (e.g. printer ink, paper)

The rate does not cover the decline in value of depreciating assets (desks, chairs, computers), cleaning costs, or office furniture. These must be claimed separately on top of the fixed rate.

For example, if you worked from home 38 hours per week for 48 weeks in the 2024-25 income year, your calculation would look like this:

• 38 hours × 48 weeks × $0.70 = $1,276.80

Note: The fixed rate changes by year:

• 2024-25: 70 cents per hour
• 2022-23 & 2023-24: 67 cents per hour
• 2020-21 & 2021-22: 52 cents per hour

Always check the ATO website for the current rate when lodging your return.

Method 2: Actual Cost Method

This method requires more detailed record-keeping but often delivers a larger home office deduction, especially if you have high energy costs or a dedicated workspace. Here’s how to calculate your actual home office expenses:

Step 1: Identify all your work-related running expenses

Track every expense you incur because of working from home:

• Electricity and gas (heating, cooling, lighting)
• Internet and phone costs
• Cleaning expenses for your work area
• Stationery and computer consumables (printer ink, paper)
• Decline in value of office furniture and equipment

Step 2: Calculate the work-related portion

You need to apportion expenses between work and personal use. Common methods include:

• Floor area method: If your home office is 10m² in a 100m² home, claim 10% of relevant expenses
• Time-based method: If you work 40 hours in a room used 100 hours total per week, claim 40%
• Usage-based method: For phone/internet, track work vs personal use over a representative 4-week period

Step 3: Keep detailed records

You’ll need:

• All receipts and bills for expenses claimed
• A logbook or diary showing hours worked from home
• Documentation of your calculation method (floor area measurements, usage logs)

Example calculation:

Let’s say your home office occupies 10% of your home’s floor space, and you worked from home for 1,920 hours (40 hours/week × 48 weeks):

Expense Type	Annual Cost	Work %	Deductible Amount
Electricity	$2,400	10%	$240
Gas heating	$800	10%	$80
Internet	$960	50%	$480
Phone	$600	30%	$180
Cleaning	$400	10%	$40
Stationery	$200	100%	$200
Desk (decline in value)	$600 ÷ 5 years	100%	$120
Office chair (decline in value)	$400 ÷ 4 years	100%	$100
Total deduction			$1,440

Compare this to the fixed rate method for the same hours: 1,920 hours × $0.70 = $1,344

In this case, the actual cost method delivers $96 more in home office deductions.

Future Advisory tip: The actual cost method typically works better if you have a dedicated workspace, high utility costs, or recently purchased office equipment. We calculate both methods for our clients to make sure you’re getting the maximum deduction.

Fixed Rate vs Actual Cost: Which Method is Right for You?

Factor	Fixed Rate Method (70c/hour)	Actual Cost Method
Best for	Occasional home workers, simple setups	Dedicated home offices, high expenses
Record keeping	Track actual hours worked for the entire income year (a timesheet, diary, or calendar) + evidence of expenses covered by the rate. A 4-week representative diary is not sufficient — the ATO requires a record of actual hours for the full year.	Track hours worked + ALL receipts
Time investment	Low – just track your hours	High – detailed expense tracking
Typical deduction	$500-$2,000/year	$1,500-$5,000+/year
What’s included	Electricity, gas (heating/cooling/lighting), internet, phone, stationery and computer consumables. Decline in value of assets claimed separately.	Everything you can prove and apportion
Equipment claims	Separate claim allowed	Included in calculation
Flexibility	Choose each year	Choose each year

Future Advisory tip: We usually calculate both methods for our clients. You’d be surprised how often the “simpler” method isn’t the better one financially.

Home Business Tax Deductions Australia: Special Considerations

If you’re a sole trader or run your business from home full-time, you might qualify for additional home business tax deductions that employees can’t claim. The key difference? If your home is your principal place of business, like a home salon, consulting office, or ecommerce hub, you may be able to claim:

• Occupancy expenses: Mortgage interest (not principal), rent, council rates, property insurance
• Additional running expenses: Cleaning costs for your dedicated work area, building insurance, land tax

To qualify for these home business tax deductions in Australia, your workspace needs to have the character of a place of business. This means:

• It’s clearly identifiable as a business location (for example signage or a separate entrance)
• Used exclusively or almost exclusively for business
• Not easily adaptable for domestic use
• Used regularly for client visits

Important: If you claim occupancy expenses as part of your home office deductions, this can reduce your main residence CGT exemption proportionately when you sell your property — it does not automatically mean you’ll pay CGT, but the full main residence exemption may no longer apply. Chat with us at Future Advisory before claiming occupancy expenses so you understand the long-term implications.

Chat with us at Future Advisory to check if this impacts you. We’ll help you maximise deductions while managing future tax implications.

Common Mistakes to Avoid When Claiming Home Office Deductions

Now, let’s go over various dangers that could get you in hot water with the ATO. Trust us, you don’t want to be on their bad side!

One of the biggest mistakes we see? Business owners do not understand which calculation method gives them the better home office deduction. Sometimes the 70-cent fixed rate method is simpler but delivers a smaller claim. Other times, tracking actual home office expenses delivers thousands more in deductions. Let’s look at what trips people up: 

Top Mistakes That Can Lead to ATO Audits

1. Overclaiming or underclaiming deductions: It might be tempting to inflate your claims, but this is a big no-no. On the other hand, do not undermine your worth, either. Making truthful statements is crucial.
2. Failing to maintain accurate records: The ATO loves documentation. If you don’t back up your claims with receipts or a logbook, you’re in trouble.
3. Mixing business with pleasure: That new computer chair might be great for your back, but if you’re using it to binge-watch Netflix for hours, you can’t claim the full cost as a business expense.

Home office expenses are consistently one of the most common areas where the ATO identifies errors in tax returns. Keeping accurate records and using the correct calculation method is the best way to protect your claim.

Ensure Compliance with ATO Guidelines

To stay on the right side of the ATO, here are some tips:

• Keep meticulous records: Use apps or spreadsheets to track your expenses and work hours.
• Be honest: Only claim for the portion of expenses that relate directly to earning your income.
• Stay updated: Tax laws can change, so keep an eye on the ATO website for updates.
• Seek professional help: Consider working with tax professionals like Future Advisory to optimise your deductions while ensuring compliance.

Home Office Tax Deductions: Your Questions Answered

Can I claim home office deductions if I work from my kitchen table?

Yes, mate! You don’t need a dedicated room to claim home office deductions for taxes. As long as you’re genuinely working from home and incur additional running expenses like electricity, internet, and phone, you can claim using the fixed rate method. However, you won’t be able to claim occupancy expenses like rent or mortgage interest without a dedicated space.

What’s the difference between home office expenses for employees vs. business owners?

Employees and business owners can both claim running expenses like electricity, internet, and equipment using either the fixed rate (70c/hour) or actual cost method. The big difference is that business owners whose home is their principal place of business can also claim occupancy expenses like rent, mortgage interest, and rates. Eligible small businesses may also be able to access temporary instant asset write-off provisions, subject to aggregated turnover thresholds and the legislation in effect for the relevant income year. Speak with your adviser to confirm current eligibility and limits before making purchasing decisions. Employees can’t claim these.

Do I need to keep receipts if I use the 70 cents per hour method?

Not for every expense, but you still have to keep a few things:

• A record of actual hours worked from home for the entire income year — a timesheet, diary, or calendar entries. Note that a 4-week representative sample is not accepted under the current fixed rate method; you need a full-year record.
• Evidence that you incurred each type of expense covered by the rate (e.g. an electricity bill, an internet bill). The ATO may request further documentation if your claim is reviewed.
• Receipts for any equipment you’re claiming separately like desks or computers

The ATO is strict about this now. Estimates aren’t accepted.

Can I claim both the fixed rate and actual expenses?

No. It’s one or the other for running expenses. But when you use the fixed rate method, you can separately claim the decline in value of equipment like desks or computers over $300. Good records make this easier.

How do I know which method gives me a bigger home office deduction?

Here’s a quick comparison. If you worked from home 40 hours per week for 48 weeks, the fixed rate gives you $1,344 (1,920 hours × 70c). The actual cost method might give you more if you have:

• High electricity costs from heating or cooling
• Expensive internet or phone plans
• Multiple equipment purchases to depreciate
• A dedicated home office space

We usually run both calculations for clients at Future Advisory to find the better option.

What home office expenses can’t I claim?

You can’t claim:

• Coffee, tea, milk, or snacks
• Mortgage principal payments
• The full cost of internet or phone if there’s personal use
• Items your employer reimburses you for
• Equipment your employer provides
• Home upgrades like renovations or carpet unless it’s for a dedicated business area

Does claiming home office deductions trigger a tax audit?

Not automatically. Home office expenses are reviewed often though. Home office claims are a known area of ATO focus. Stay protected by keeping detailed records, using the correct calculation method, and only claiming what you’re genuinely entitled to.

Stay safe by:

• Only claiming what you’re entitled to
• Keeping detailed records
• Using the ATO’s calculation methods
• Being able to prove your work hours

The ATO isn’t trying to catch you out. They just want accurate claims.

Can I claim home office deductions if I only work from home occasionally?

Yes. You can claim deductions for the hours you actually work from home. The fixed rate method works well for occasional home workers since you only track your hours and multiply by 70 cents. Just make sure you’re actually incurring extra costs. A quick email check once a week usually doesn’t count.

Maximise Your Home Office Tax Deductions

There you have it, folks! A comprehensive guide to home office tax deductions for Australian business owners. Remember, while claiming deductions can save you money, it’s crucial to do it right. The last thing you want is the ATO knocking on your door (or home office) for an audit.

Getting your home office deductions right isn’t just about saving a few bucks. It’s about claiming every dollar you’re entitled to while staying on the right side of the ATO. Whether you’re using the 70 cent fixed rate method or tracking actual home office expenses, the key is keeping solid records and knowing what applies to your situation.

Well, then, do you have what it takes to fight for your tax deductions? With this knowledge under your belt, there is little doubt you will be maximising your claims without running afoul of the law. And if you’re feeling a bit overwhelmed, don’t worry – that’s what experts like Future Advisory are here for.

At Future Advisory, we help Melbourne business owners and sole traders handle home office tax deductions every day. We’ll calculate both methods, point out expenses you might be missing, and make sure you’re claiming correctly so you avoid ATO hassles and keep more cash in your business.

Remember, every dollar you save on tax is a dollar you can reinvest in your business or treat yourself to a well-deserved break. So, why not start reviewing your home office setup and expenses today? Your future self will thank you!