ABC managing director Michelle Guthrie will present a high noon briefing to staff at the national broadcaster where she is expected to finally reveal where the axe will fall, with multiple job losses expected.

Guthrie will unveil her new strategy for the ABC this afternoon, with management roles expected to be slashed in a bid to save money and reinvest in content.

Staff have been told to tune-in at noon on Tuesday for the announcement, which will focus on how the ABC can best meet its charter of responsibilities.

In an all-staff memo, Guthrie described 2017 as a "year of action and change" for the national broadcaster.