Embattled education and skills trainer Vocation Limited has slumped to a $273 million loss for the six months to December.

The loss was largely driven by a $241 million write-down on the value of its Victorian business, which was stripped last year of nearly $20 million in Victorian Government contracts.

Excluding such one-off items, Vocation reported a net loss after tax of $7 million.

"Despite difficult trading conditions and substantial reputational damage to parts of the vocational education business, the higher education business consisting of Endeavour and the Australian School of Management have performed to expectations and carry momentum into the current half," said Vocation chief executive Mark Hutchinson.

In January, Mr Hutchinson announced his intention to resign once a replacement was found.

The company and its corporate advisers are working on a program to sell parts of the business and improve its balance sheet, which it expects to completed by April or May this year.

Last week Vocation received a writ in the Supreme Court of Victoria on behalf of a class action group, alleging misleading or deceptive conduct and breaches of the Australian Securities Exchange's continuous disclosure rules.

Vocation denies the claims and said they "lack any proper foundation".

Vocation shares were trading down 5.5 per cent on the ASX by 11:30am (AEDT).