Bracket Creep Disproportionately Impacts Minimum Wage and High Earners
New analysis reveals how inflation-driven tax hikes affect specific income brackets in Australia.
1Taxation Mechanism Explained
Bracket creep occurs when inflation pushes nominal incomes into higher tax brackets without corresponding adjustments to threshold levels. This results in individuals paying a larger proportion of their income in taxes over time. The phenomenon effectively increases the government's tax take without requiring an explicit legislative change to tax rates.
2Hardest Hit Income Groups
Research by the e61 Institute identifies workers earning approximately $45,000 and $190,000 as the most penalized groups. These individuals sit on the cusp of higher tax brackets, making them particularly vulnerable to inflation-driven shifts. Over a decade, these earners face significant increases in their average tax rates compared to other cohorts.
3Projected Tax Rate Hikes
Projections suggest that a person currently earning $45,000 could face an average tax rate increase exceeding five percentage points over the next decade. Similarly, those earning $190,000 would see a four-percentage-point rise. For both groups, more than half of their real income growth would be consumed by these automatic tax increases.
4Budgetary Impact and Projections
The Parliamentary Budget Office indicates that without bracket creep, the federal budget would face a deficit of 0.7 percent of GDP by the end of the decade. Official projections currently claim a 1 percent surplus, relying heavily on the revenue generated by this unindexed tax system to balance long-term fiscal accounts.
5Opposition Policy Proposal
The federal opposition has pledged to index tax brackets to inflation starting in 2028, phased over two years. This plan involves returning bracket creep revenue to taxpayers as a lump sum annually. Funding for this initiative would come from cutting climate and housing policies, industry subsidies, and removing specific wage earner offsets.
6Fiscal Sustainability Concerns
Economist Saul Eslake expressed skepticism regarding the opposition's ability to fund these tax cuts through spending reductions. He noted that government spending is structurally higher due to rising costs in aged care, disability services, health, and defense. Additionally, higher interest payments on national debt limit the government's fiscal flexibility for tax reform.
7Structural Spending Pressures
Approximately 67 percent of federal spending is tied to essential areas like pensions, benefits, and health services, which are difficult to reduce. Eslake argues that governments have avoided honest public conversations about the necessity of higher taxes to fund these services, instead relying on the hidden revenue generated by bracket creep.
8Need for Tax Reform
Researchers argue that bracket creep is an inequitable and non-credible long-term funding strategy. They suggest that fiscal sustainability requires deliberate moderation in public spending growth and comprehensive tax reform. Relying on automatic tax hikes distorts the economy and fails to provide a transparent or sustainable framework for national revenue collection.