The Albanese Government relies on high immigration to boost income tax revenue, with new Treasury papers illustrating the addiction of both sides of politics to strong overseas population growth. Collections from personal income taxes were $3.4 billion stronger in the Final Budget Outcome compared with predictions made in the pre-election March Budget. Monday’s Treasury update showed receipts from income tax levied on individuals added up to $338.3 billion. Treasurer Jim Chalmers said the boost from personal income taxes was a reflection on a strong labour market, with unemployment near historic lows at 4.2 per cent. “The economy’s much bigger because of high immigration, which has all sorts of benefits: more spending in the economy, more income in the economy, more people employed and that, of course, leads to more tax collection whether it’s income tax or GST.