Micheál Collins of the Nevin Institute is out with a new paper looking at the burden of taxation by income decile by tax-type, and the results are very interesting. From the piece:
Using data from the most recent Household Budget Survey, this paper estimates both the direct and indirect taxation contributions of households. The paper examines, individually and collectively, the direct and indirect tax paid by households across the income deciles, alongside the overall average household contributions. The data is presented at the households and equivalised adult level.
This chart summarises the findings nicely.

Update: Micheál has responded to many of the main points raised in the thread here.