An NBER working paper cited by Treasury to support its resource rent tax recommendation has been updated by the authors.

The original (2009) paper split the effective tax rates paid by domestic firms and multinationals (see Peter Martin). The new paper pools domestic and multinationals, and the results are striking.  The effective tax rate paid by mining companies in Australia is estimated by the authors to be 8 per cent, compared with an average across countries of 11 per cent.

They also find that the overall effective tax rate for companies in Australia is 17 per cent, below the effective rates in the UK (18%) and the US (20%).