The seemingly-innocent email from the "myGov Customer Care Team" simply asks users to verity their details.
But it's one of the latest ways scammers are trying to steal valuable personal information and banking details.
Australian Tax Office (ATO) assistant commission Ben Foster said the new phishing scam had many of the classic warning signs of illegitimate emails, including asking people to click a link to confirm their details and spelling errors.
"The ATO and myGov does send emails and SMS messages, however will never send you an email or SMS with a hyperlink directing you to a login page for our online services," Mr Foster said.
"In the lead up to tax time, we expect to see more of these malicious attempts to harvest identity details."
If you receive an email that looks suspicious, the best thing to do is delete it or report it to ScamWatch - don't click on any links, open attachments or reply to it.
If you're concerned about your personal information, you can visit the myGov site (by searching for it yourself on Google rather than clicking an email link) and changing your password.
If you're worried you have provided your bank account details to a scammer, contact your bank immediately.
If you're still concerned, call Services Australia's Scams and Identity Theft Helpdesk on 1800-941-126.