The Government has heeded calls from the industry to provide capital gains tax (CGT) rollover relief for merging superannuation funds, effective from 1 July 2012 to 1 July 2017.
The mandatory transfer of default members' balances to a MySuper product in another complying fund will also be eligible for the tax relief, as of 1 July 2013 to 1 July 2017.
A Financial Services Council (FSC) statement said the existing tax laws required losses during the global financial crisis to be crystallised when two funds chose to merge.
"Trustees could not - in accordance with their legislative duty to act in the best interest of members - go ahead with a merger under those circumstances," said the FSC.
Association of Superannuation Funds of Australia (ASFA) chief executive Pauline Vamos also welcomed the change, which comes after intense lobbying by ASFA.
"Super funds are currently carrying deferred tax assets equivalent to between 1 and 3 per cent of member account balances," Vamos said.
"Without the CGT rollover relief, the fund member would bear the brunt of the outcome, as efficiency gains from a merger would not be realised," she said.
MLC and NAB Wealth Group executive Steve Tucker also welcomed the announcement.
"The extension of this relief for merging superannuation funds will result in a better outcome for members' retirement benefits," Tucker said.
Self-managed superannuation funds will be excluded from the tax loss relief "because the MySuper requirements do not apply to them", according to the Government.
A major super fund has defended its use of private markets in a submission to ASIC, asserting that appropriate governance and information-sharing practices are present in both public and private markets.
A member body representing some prominent wealth managers is concerned super funds’ dominance is sidelining small companies in capital markets.
Earlier this month, several Australian superannuation funds fell victim to credential stuffing attacks, which saw a small number of members lose more than $500,000.
Small- to medium-sized funds have become collateral damage in an "imperfect" model for super industry levies, a financial institution has said.