The IFRS accounting standards became mandatory in 2007, requiring companies to recognise the market value of assets such as property and financial instruments in their financial statements, sparking disquiet among corporates who claimed they exaggerated the global downturn in 2008.
The watchdog wants to promote meaningful communication of financial information, reduce the chance of misleading results, and offer greater clarity on the disclosure of irregular measures.
The overriding message in the draft guidance is that alternative performance measures not be misleading and aren't used to remove or disguise bad news.
The FMA began talks with market participants in November, holding discussions with small groups of chief financial officers, independent directors and audit firms.
Submissions close on June 29, and a final guidance note will be issued by the end of August.