is tax up every year under the Abbott government?
Tax on the rise
The bar chart below, Chart 1, reports the annual tax to GDP ratio from 2008-09 (the first Labor budget) to 2018-19 (last available projection). It must be noted upfront that data for 2014-15 and the two subsequent years are estimates, while data for 2017-18 and 2018-19 are projections.
If one takes 2014-15 as the reference for the first budget year of the Coalition government, then the evidence indicates that tax revenues in proportion of GDP are higher under the Abbott government than under the two previous Labor governments.
Furthermore, the tax-to-GDP ratio is expected to increase steadily over the next four years.
A few qualifications are necessary. First, being estimates, the data for 2014-15 and subsequent might be revised in the future (but I don’t expect these revisions to be significant, at least for 2014-15).
Second, the tax-to-GDP ratio of 21.9% observed in 2014-15 is not the highest ever. Supplementary Table 2 in the budget papers shows that in 2007-08 the ratio was 23.6%. The peak was reached under the Howard government in 2000-01, 2004-05 and 2005-06, when the ratio reached 24.2%. Over the period 1970-71/2014-15 the average ratio was 21.5%.
Third, the data above refer to cash receipts. Accrual receipts in 2014-15 amount to 23.9% of GDP, as shown Supplmentary Table 4 in the budget papers here shows. This is only slightly higher than the accrual receipts to GDP ratio in 2013-14 and 2012-13 (23.7% and 23.6% respectively), but still one to two percentage points higher than the ratio in the earlier years of the Labor governments.
https://theconversation.com/factcheck-is-tax-up-every-year-under-the-abbott-government-41966