Income tax calculator for Australian resident individuals for the year ending 30 June 2018.
Online tax calculator – limitations and notes for use
- Calculation formulae are strictly in accordance with the official tax scale, however this is a basic calculator for generating a quick tax estimate. Results should be treated with caution: There may be any number of reasons why the results differ from your official tax assessment. All results have been rounded.
- If applicable, medicare levy (with a top up rate including the surcharge if applicable) must be manually selected. Medicare low income threshold calculations are not included. See here for further information on estimating medicare.
- Formulae for HELP loans, backpacker tax, part-year or non-residence etc have NOT been included.
- An automatic LITO (“Low Income Tax Offset”) calculation is included but beware that it does not necessarily apply in all circumstances.
- To estimate a refund or estimated final tax position, the “scratch pad” area can be used to enter values for tax instalments (withholdings) credits or other tax offsets.
- For a free spreadsheet version of the calculator go here.
Create a tax estimate
- To create an estimate, firstly enter taxable income in the blue area, next to the heading “Enter your income”
- (if applicable) select a medicare rate: Click the Y/N box, then select a percentage rate. The standard medicare rate for 2017-18 is 2% (excluding low income reduction or surcharge).
- (Optionally) enter offset values and tax instalment (withholdings) in the scratch pad area, in the column headed “Offsets and credits”.
- Special note for smart phones: We’re working on improving the display – in the mean time you may find that holding the phone in landscape view works best.
This page was last modified on 27 June 2017