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ATO announces focus on shares data of 5m Aussies


The ATO now holds more than 500 million records of share data, and will prioritise share transactions under its data matching program.

By Jotham Lian 12 minute read

In an extension to its data matching program, the Tax Office will now scrutinise share data from ASIC and compare it to information reported in tax returns and other ATO records.

“The data includes details of the price, quantity and time of individual trades dating back to 2014, with more than 500 million records obtained. The information complements information that the ATO already holds from brokers, share registries and exchanges,” said ATO assistant commissioner Kath Anderson.

“We will use the information to identify taxpayers who have not properly reported the sale or transfer of shares as income or capital gains in their income tax returns. Having access to increased data will help us to protect honest taxpayers, by detecting those who have not done the right thing. This helps ensure a level playing field for all.”


Ms Anderson said share transactions are high on the ATO’s priority list given more than 5 million Australian adults now own shares.

“Almost one-third of all Australian adults own shares, and there is evidence that some taxpayers are getting it wrong when it comes to reporting their capital gains or losses from the sale of shares,” she said.

“In particular, we tend to see higher rates of error among those who don’t regularly trade in shares and who are not aware of the tax implications.”

The ATO will look to make the share data information available to taxpayers as part of the tax return prefill service in the future.

With the tax lodgment deadline tomorrow for self-prepared returns or for taxpayers to be a client of a registered tax agent, Ms Anderson says taxpayers or tax agents who realise they have made an error or left out their gains should not panic.

Taxpayers contacted by the ATO will be given the opportunity to verify information collected from data providers before any compliance action is undertaken and will be given at least 28 days to clarify any information obtained.

“If you realise you made a mistake, contact the ATO as soon as possible,” said Ms Anderson.

“Penalties may be significantly reduced in circumstances where you contact us prior to an audit. If you choose not to, you should be aware that penalties can be as high as 75 per cent of the tax shortfall.”

According to the ATO, taxpayers who engage in share transactions should keep good records of share purchase and sale process, as well as costs like brokerage fees; and ensure declare capital gain in their tax return.

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Jotham Lian

Jotham Lian


Jotham Lian is the editor of Accountants Daily, the leading source of breaking news, analysis and insight for Australian accounting professionals.

Before joining the team in 2017, Jotham wrote for a range of national mastheads including the Sydney Morning Herald, and Channel NewsAsia.

You can email Jotham at: This email address is being protected from spambots. You need JavaScript enabled to view it. 

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