In 2022-23, an Australian resident individual receives assessable income of $80,000 from sources in Australia and $4,500 interest from the UK (net of 10% UK withholding tax), and has deductions of $2,000. The employer has deducted $4,500 PAYGW. This individual's total tax liability (including Medicare and tax offsets) in Australia, at the end of the 2023 income year, is?