Tax extension after myGov disruption

Tardy tax lodgers have an extra day to put in their return after some taxpayers experienced slowness logging onto the myGov website.

A 10-minute delay on the myGov website has held up many taxpayers trying to lodge their returns by the October 31 deadline, but the ATO says returns can still be lodged on Tuesday.

Services run by the Department of Human Services, including myGov, were "affected by a short 10 minute disruption" on Monday afternoon, general manager Hank Jongen said in a statement.

"After which services were restored. We apologise to any customers who were inconvenienced," he said.

Many people took to Twitter on Monday, the last day to lodge their tax returns, to complain about the myGov website crashing.

However, the Australian Taxation Office says returns can still be lodged on Tuesday.

"People don't need to worry: penalties won't apply for anyone who lodges their tax return tomorrow," a spokeswoman said in a statement on Monday night.