Home Office Tax Deductions Australia 2025: Fixed Rate vs Actual Cost Method

Key Takeaways for 2024-25 Financial Year

1. Fixed rate method: Claim 67 cents per hour worked from home (revised from July 2022)
2. Actual cost method: Calculate real expenses with detailed records
3. Equipment under $300: Claim immediate deduction for work use percentage
4. Records required: Must keep time log of hours worked from home

Understanding the Two Methods

The ATO provides two methods for claiming home office running expenses: the fixed rate method and the actual cost method. You can choose whichever method gives you the higher deduction, but you cannot mix and match components from both methods in the same tax return.

Fixed Rate Method

67c/hour

Simple calculation, fewer records needed. Best for occasional or hybrid workers.

Actual Cost Method

Varies

Calculate real costs. More records required but potentially higher deduction.

Method 1: Fixed Rate Method (67 cents per hour)

The revised fixed rate method is the simplest way to claim home office expenses. For each hour you work from home, you can claim 67 cents without needing to calculate individual expenses for electricity, internet, phone, and stationery.

What's Included in the 67 Cents

✓ Electricity and gas for heating, cooling, and lighting
✓ Home and mobile phone expenses
✓ Home internet expenses
✓ Stationery and computer consumables (paper, ink, pens)

What You Can Claim SEPARATELY (On Top of 67c)

+ Depreciation of assets: Computer, laptop, monitor, desk, chair (work portion)
+ Repairs and maintenance: Costs for dedicated work equipment
+ Cleaning: If you have a dedicated home office area

Fixed Rate Calculation Example

Example: Sarah - Hybrid Worker (3 days WFH)

Hours worked from home per week	24 hours
Weeks worked per year	48 weeks
Total hours WFH	1,152 hours
Fixed rate claim (1,152 x $0.67)	$771.84
Plus: Laptop depreciation ($2,000 x 25% x 80% work use)	$400.00
Plus: Office chair ($350 x 100% work use - under $300 threshold after adjustment)	$350.00
Total Home Office Deduction	$1,521.84

Record-Keeping Requirements for Fixed Rate

Important: You Must Keep These Records

Time log: Record of ALL hours worked from home throughout the year (diary, timesheet, roster, or app)
One bill: At least one phone and one internet bill to prove you incur these costs
Receipts: For any assets claimed separately (computer, desk, chair)

Note: You can NO longer use a 4-week representative diary to estimate the whole year. You must track actual hours throughout the entire year.

Method 2: Actual Cost Method

The actual cost method requires more record-keeping but may give you a larger deduction if you have high running costs or work from home full-time. You calculate the work-related portion of each expense individually.

Categories of Actual Expenses

Running Expenses

Electricity (work % of total bill)
Gas (heating/cooling portion)
Phone (work % of usage)
Internet (work % based on usage)
Stationery and consumables

Depreciating Assets

Computer/laptop (work portion)
Office furniture (desk, chair)
Monitor, keyboard, mouse
Printer, scanner
Webcam, headset, microphone

Occupancy Expenses*

Rent or mortgage interest
Council rates
Home and contents insurance
Land taxes

*Only if dedicated home office with area method

Other Deductible Costs

Cleaning (dedicated office area)
Repairs to office equipment
Curtains/blinds (work area only)
Work-related subscriptions

Calculating Work-Related Portion

For shared expenses, you must calculate the work-related portion. The ATO accepts reasonable apportionment methods:

Expense	Calculation Method	Example
Electricity	(Office area / Home area) x (Work hours / Total hours at home)	10m2/100m2 x 8hrs/16hrs = 5%
Phone	4-week diary of work vs personal calls	60% work calls = 60% deductible
Internet	Reasonable estimate based on work usage	WFH 3 days = ~40-50% reasonable
Computer	Depreciation x work use %	$500 depreciation x 80% = $400

Actual Cost Calculation Example

Example: Michael - Full-Time WFH Employee

Expense	Annual Cost	Work %	Deduction
Electricity	$2,400	25%	$600.00
Internet	$1,200	60%	$720.00
Mobile phone	$960	70%	$672.00
Laptop depreciation ($2,400 / 4 years)	$600	90%	$540.00
Monitor depreciation ($800 / 5 years)	$160	100%	$160.00
Desk & chair depreciation	$150	100%	$150.00
Stationery & consumables	$200	100%	$200.00
Total Home Office Deduction			$3,042.00

Equipment Deductions: The $300 Threshold Rule

Equipment purchases have special rules depending on their cost:

Items $300 or Less

Claim immediate deduction for work-use percentage

Keyboard: $150 x 90% = $135
Webcam: $120 x 100% = $120
Mouse: $80 x 90% = $72
Headset: $200 x 100% = $200

Items Over $300

Must depreciate over effective life

Laptop: 4 years (25% per year)
Desktop: 4 years (25% per year)
Monitor: 5 years (20% per year)
Desk/Chair: 10 years (10% per year)

Equipment Depreciation Table

Asset	Effective Life	Prime Cost Rate	Diminishing Value Rate
Laptop/Desktop Computer	4 years	25%	50%
Computer Monitor	5 years	20%	40%
Printer/Scanner	5 years	20%	40%
Office Desk	10 years	10%	20%
Office Chair	10 years	10%	20%
Mobile Phone	3 years	33.33%	66.67%

Dedicated Home Office: Claiming Occupancy Expenses

If you have a room used exclusively for work (not a spare bedroom with a desk, but a genuine dedicated office), you may also claim occupancy expenses. However, this has significant implications:

Warning: CGT Implications

If you claim occupancy expenses (rent, mortgage interest, rates), you may lose part of your main residence CGT exemption when you sell your home. The ATO will calculate the proportion of your home used for business and apply CGT to that portion. This can result in a significant tax bill on sale.

Recommendation: Unless you're running a business from home, most employees should NOT claim occupancy expenses. Stick to running expenses and equipment depreciation.

Which Method Should You Choose?

Decision Guide

Choose Fixed Rate (67c/hour) if:

You work from home 1-3 days per week (hybrid)
You don't have a dedicated home office
You want simpler record-keeping
Your running costs are average

Choose Actual Expenses if:

You work from home 4-5 days per week (full-time WFH)
You have high electricity/gas costs
You have a dedicated home office (may claim occupancy)
You can maintain detailed records

Comparison: Fixed Rate vs Actual Cost

Scenario	Fixed Rate	Actual Cost	Better Method
Hybrid (1,000 hrs/year)	$670 + assets	~$500 + assets	Fixed Rate
Full-time WFH (1,800 hrs/year)	$1,206 + assets	~$1,800 + assets	Actual Cost
High electricity (solar, AC)	$670 + assets	~$900 + assets	Actual Cost

What You CANNOT Claim

Non-Deductible Home Office Costs

x Coffee, tea, snacks, or meals while working from home
x Childcare costs (even if needed to work from home)
x 100% of phone/internet bills (only work portion is deductible)
x Occupancy costs without a dedicated, exclusive home office
x Items provided or reimbursed by your employer
x General home maintenance or repairs (unless directly to office)
x Mortgage principal repayments (interest only may be claimable)

ATO Audit Focus Areas

The ATO has indicated that work-from-home claims are a key audit focus area. Avoid these common mistakes:

Common Audit Triggers

No time records: Claiming hours without documented evidence
100% work use: Claiming entire cost of equipment used for personal purposes
Double-dipping: Claiming 67c rate AND separate internet/phone expenses
Occupancy without dedication: Claiming rent/rates without exclusive office
Inconsistent with employer: Claims don't match employer's WFH records
Round numbers: Estimates like "$500 phone" suggest no actual records

Related Resources

Income Tax Calculator

See how home office deductions reduce your tax payable

Depreciation Calculator

Calculate equipment depreciation deductions

Electricity Cost Calculator

Estimate electricity costs for actual expenses method

Tax Deductions by Profession

Industry-specific deduction guides

Disclaimer

This guide provides general information only and does not constitute tax, legal, or financial advice. Tax laws change regularly, and individual circumstances vary. For advice specific to your situation, consult a registered tax agent or accountant. Information is current as of January 2025 for the 2024-25 financial year.