NEW in 2018:

STINMOD+ online allows you to estimate the tax liability and the welfare payment you or your family could be eligible for given your personal circumstances. The model comprehensively covers the tax and transfer system in Australia. In order to keep the questionnaire concise, we have only identified the most important family characteristics. Certain aspects of your personal circumstances, such as salary sacrifices and remote allowances, are not taken into account. If you or your organisation need the complete version for more in-depth analyses, please contact us to access the advanced model.

The Model

STINMOD+ is a microsimulation model that calculates the effects of tax and transfer policy on disposable incomes. It comprehensively models the tax and transfer system in Australia and includes all personal taxations and federally administered welfare payments other than the National Disability Insurance Scheme (NDIS). The model replicates the implementation of the programs in real life, incorporating elements such as income testing and asset testing. STINMOD+ is also used as a platform for advanced economic modelling and can be linked with other economic and behavioural models. It can provide estimates of poverty and inequality, cost of the reforms and the distributional impact of changes to the tax and transfer policies. The model can also be used as a tool to understand the work incentives of household members and any implied intra-household redistribution.

STINMOD+ is the successor of the original STINMOD model, a pioneering modelling system since the mid-1990s, widely used by various Commonwealth Government agencies. The latest model STINMOD+ has incorporated many new modelling techniques and has greatly improved the efficiency and the maintainability of the original code. The overhaul also makes it easier for other models we are developing to interact with STINMOD+ for future research. This has been a significant upgrade to the original STINMOD model, and will allow NATSEM to continue as one of the leading independent economic modellers in Australia.  

STINMOD+ is one of the very few comprehensive and working tax/transfer microsimulation models in Australia, and plays an important role in conducting independent modelling of Tax/Transfer policies in Australia. NATSEM is proud to be part of the international microsimulation community, contributing to and learning from the international literature in this field.

Statement of Independence

NATSEM has not received any funding for the modelling of the 2018 budget presented on this website. All modelling conducted by NATSEM for the budget 2018 has been funded internally by the University of Canberra as a service to the Australian community. NATSEM has no affiliation with any political party.


For more information about STINMOD+, please contact Dr Jinjing Li on (02) 6201 2776 or by email


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