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Tax Deductions for Laptop, Phone & Work-Related Devices

14 min read

Do you use your personal laptop, desktop, tablet or phone for work? Then you can claim a deduction for work-related use of the device and the work-related portion of the decline in value (depreciation) of the device.


Recent research shows there are more mobile phones than people in Australia. With smartphones reaching omnipresence, it’s becoming more difficult for employees to draw the line between work and play. Our ‘always on’ culture sets the expectation that employees are contactable at almost any hour of the day, any day of the week.

If you’re one of the millions of Australians who use their mobile phone to make or receive work calls, you may be entitled to claim a tax deduction on the costs incurred. With the average annual smartphone bill hovering around $700, you could be missing out on hundreds of extra dollars in refunded tax when you complete your return.

To avoid short-changing yourself or accidentally over-claiming, here’s what you need to know about claiming your phone usage:


If you use your personal mobile phone for work purposes, you’re entitled to claim a deduction for the costs incurred provided you weren’t reimbursed by your employer and you have records to support your claims. If you use your phone for both personal and work purposes, you can still claim a deduction but only for the percentage that relates to work use. 

The Australian Taxation Office (ATO) is cracking down on higher claims, so keep records and only claim what you’re legitimately entitled to.


While you need to keep records to substantiate your claim, you don’t need to save every single phone record. So before you start highlighting your work calls, here’s how you can substantiate your claim. 

If you’re claiming a deduction of more than $50, you’ll need to keep a record over a four-week period from some point in the tax year. If you receive an itemised phone bill, you need to determine your percentage of work use over that 4-week period and then apply this to the entire year.

If you don’t receive an itemised bill, you can determine the percentage of your work use by keeping a record of all your calls over a 4-week representative period. Then you can calculate your claim using a reasonable basis. This could include:

  • The number of work calls made as a percentage of total calls

  • The amount of time spent on work calls as a percentage of your total calls

  • The amount of data downloaded for work purposes as a percentage of your total downloads

Other records may include diary entries, including electronic records and bills. Producing evidence that your employer expects you to work at home or make some work-related calls will also help you demonstrate you’re entitled to a deduction.


Over a 4-week representative period, Roger identifies that 50% of his calls are work-related. He worked for 11 months during the income year, having had one month of leave. Based on these calculations, Roger can claim a deduction of $550 in his tax return (50% x $100 x 11 months).

If you incur extra charges in a particular month because you’ve exhausted your data allocation and had to pay for more, you can also claim the work-related portion of those extra costs.

If you purchased a smartphone, tablet or other electronic device outright, you can also claim a deduction for a percentage of the cost based on your work-related usage. If the item costs less than $300, you can claim an immediate deduction. For devices costing more than $300, you can claim a deduction over several years for the decline in value.



If you occasionally use your mobile phone for work purposes, and the total deduction you’re claiming for the year is less than $50 – you can claim the following flat rate amounts:

  • $0.25 for each work call made from your home phone

  • $0.75 for each work call made from your mobile

  • $0.10 for text messages sent from your mobile



If you’re provided with a work phone by your employer and your work is billed for the usage (phone calls, text messages, data), you’re not entitled to claim a deduction. The same goes if your employer reimburses you for the costs of your own phone.


These days, it’s common for phone companies to bundle phone and internet plans. If you have a mobile, home and internet bundle, you’ll need to apportion your costs based on your work use for each service. If other members of your household use the internet, you’ll need to factor their usage into your calculation.

To work out a reasonable pattern of use, you’ll need to identify what percentage of your use was work-related over a four-week representative period during the tax year. You can then apply this to get a usage over the year.

A reasonable basis to work out your work-related use could include:


  • The amount of data used for work as a percentage of the total data used by all members of your household

  • Any additional costs incurred as a result of your work-related use – for example, exceeding your monthly cap.


  • The number of work calls made as a percentage of total calls

  • The amount of time spent on work calls as a percentage of your total calls

  • Any additional costs incurred as a result of your work-related calls – for example, if your work-related use results in you exceeding your monthly cap.


Attending a course or studying for a qualification as part of your job? You can claim a tax deduction for the costs of self-education if one of the following applies to you:

  • At the time the expense was incurred, there was a direct connection between the self-education and your current work activities and income

  • You can show that the study leads to, or may lead to, an increase in income from your current employment or work activities

  • Any other direct connection can be found between the self-education and current work activities

If that sounds like your situation, you can claim the study related portion of your device as a tax deduction.

If the item costs less than $300, you can claim an immediate deduction for the full cost. If the item costs more than $300, you can claim a deduction each year for the decline in value (depreciation). For laptops, this is typically three years and for desktops, typically four years.

Again, you’ll need to keep a diary so you can demonstrate the study-related portion of your device.


If you’re employed, required to work from home and have recently bought a personal computer, you may be able to claim the value of your computer as a year-by-year depreciation. In saying that, you must genuinely use the computer for work. If you use the computer for both work and private purposes, you can only claim a percentage based on the work-related portion of usage. If you paid for your computer and your employer reimbursed you, you are not eligible to claim a deduction on it.

It’s not just about employees working from home, freelancers who need to purchase equipment such as computers or laptops to do their job may also be entitled to claim some of the cost in their annual tax return. Individuals studying may be eligible to claim some of the cost of a laptop or computer if the self-education directly relates to their current work. There are rules and regulations around all scenarios so before you make any assumptions, always talk to a tax professional to make sure you’re not over claiming or underclaiming.


If you run a small business (a business with a turnover of less than $10 million), you can claim an immediate tax deduction for any assets costing less than $20,000. 

This type of deduction is ideal for:

  • Uber drivers

  • People running Etsy and Ebay stores

  • Airtasker workers

  • Anyone running a small business

Unless you’re buying a supercomputer, you’ll likely be eligible for an immediate tax deduction on any laptops or desktops purchased for business use.

This includes many devices such as:

  • Laptops

  • Desktops

  • Tablets

  • Mobile phones

  • Printers            

If the computer or laptop is only used partly for business purposes, you can only claim a deduction for the business portion of the cost. To do this, you will need to keep a diary over a period of four weeks to establish a pattern of uses. From there, your accountant or tax professional can help you apportion the correct amount and let you know what records you need to keep to substantiate your claim. 

In addition to the cost of your computer, as a small business owner, you can also claim your internet costs and expenses relating to setting up and maintaining your computer.                                           

The $20,000 instant asset write-off is available until 30 June 2017. Buy before 30 June this year to claim tax relief in this year’s tax return, otherwise you will have to wait until next year to claim the relief.

The asset must be in use by the end of the tax year (30 June) to claim the deduction. If you order an item but it isn’t delivered until next year, you must make the claim next year.

Other key features:

  • $20,000 is the price exclusive of GST

  • You can purchase second-hand as well as new assets

  • Assets costing more than $20,000 (ex. GST) must be depreciated over their useful life (typically 3-4 years for tech items)

  • If an item is used partly for business purposes and partly for private purposes, you can only claim a tax deduction for the business proportion of the cost

If you run a small business through a company, you will get tax relief at a rate of 28.5%. If you run a business as a sole trader or partnership, you get tax relief at your marginal rate (between 19% and 47%, excluding medicare levy).


Both small businesses and individuals may also be able to claim depreciation on the computer. Generally speaking, desktop computers depreciate over a period of four years and laptops depreciate over two years. 

If your computer cost less than $300, you can claim an immediate deduction for the full cost of the item. If your computer cost more than $300, you can claim the depreciation over the life of the equipment. Your tax professional can help you work out the rate of depreciation you can claim over the life of the asset.

 With the ATO announcing a big crackdown on higher-than-expected tax deductions, now is a good time to consider what you can and can’t claim. Taking everything into consideration, experience counts when it comes to getting the most out of your tax return. 

Don’t leave your deductions to chance, find your nearest H&R Block office to talk to an experienced tax professional today.

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