Abbreviated as NOM
Net Overseas Migration (NOM) is the gap between people who come to live in Australia and people who leave to live elsewhere. The ABS measures NOM using a "12/16 month rule." If a person was in the country for 12 out of 16 months, they count as having moved here. If away for the same time, they count as having left.
NOM data comes from official travel records. The first release uses modelled data. Figures get better over time as more records come in. Final NOM figures need about two years of data.
NOM feeds into the estimated resident population that the ABS calculates and shares. Place Forecast uses those estimates as the base for all its figures. NOM does not appear as a separate input in Place Forecast. Its effect shows up in the population estimates to the left of (and including) the jump-off year on charts.