• Last Updated: 1st Apr 2019

Policy Reform Model

The STINMOD+ Policy Reform Model allows you to design and modify the entire Australian tax and transfer system, and estimate the impact of your proposal for the entire population and hypothetical households. Users also have the ability to select a range of the population datasets calibrated for STINMOD+ use.


An example of the policy reform model use

Common Model Use

  • Policy Proposal Estimates
  • Inequality analysis
  • Poverty analysis


What policy changes are supported?

The thresholds and the benefit amount of the following policies can be modified


  • Income tax
  • Medicare Levy and Medicare Levy Surcharge
  • Temporary Levy such as flood levy and budget repair levy
  • Tax Offsets such as low income tax offset, beneficiary tax offset, seniors and pensioners tax offset
  • Private health insurance rebate
  • Education tax refund
  • Superannuation concessional contribution tax
  • Superannuational excess concessional contribution charge
  • Very high income contribution tax (Division 293 tax)
  • Government super co-contribution
  • Low income superannuationa tax offset


  • Age Pension
  • Austudy
  • Bereavement Allowance
  • Carer Allowance
  • Carer Payment
  • Carer Supplement
  • Child Care benefit and Child Care Rebate
  • Childcare Subsidy
  • Dad and Partner Pay
  • DVA Pension
  • Disability Support Pension
  • Energy Supplement
  • Family Tax Benefit A and related benefits
  • Family Tax Benefit B and related benefits
  • Farm Household Allowance
  • Newstart Allowance (incl. participation supplement)
  • Parental Leave Pay
  • Parenting Payment (single and partnered)
  • Partner Allowance
  • Pensioner Education Supplement
  • Remote Area Allowance
  • Sickness Allowance
  • Special Benefit
  • Widow Allowance
  • Widow B Pension
  • Wife Pension
  • Youth Allowance
  • and others.


The model can be accessed here.

Change Log


  • Updated base dataset to 2019
  • Add more detailed winner/lose information
  • Add distribution impact by wealth in the analysis
  • Add extra decile information and tables
  • Updated policy parameters and bug fix


  • Use household instead of income unit for poverty calculation


  • Bug fixing in the base dataset
  • Include budget impact estimates in the report


  • Update one-off payment
  • Update indexation


  • Add Winer/Loser summary table by income level
  • Improve model robustness with certain extreme values


  • Initial Release

  1. Note this policy might not be supported in all dataset due to its small population coverage.