The ATO has begun issuing determinations to people who exceeded their concessional superannuation contributions cap for the 2017–2018 financial year. These determinations will also trigger amended income tax assessments and additional tax liabilities. Individuals can elect for the ATO to withdraw their excess contributions from their super fund to pay any additional personal tax liability.
You have 60 days from receiving an ECC determination to elect to release up to 85% of your excess concessional contributions from your super fund to pay your amended tax bill. Otherwise, you will need to fund the payment using non-superannuation money.