On Tuesday, the Parliamentary Budget Office released their long-awaited costing and distributional analysis of the tax measures implemented since the Harper government has been in power. In essence, they asked what is the cost of these tax cuts, who benefits, and to what degree.

The price tag of the tax cuts

The total cost of the tax cuts implemented by this government is $30.4 billion in 2014 ($17.1B on the income tax side and $13.3B from the GST/HST cuts). This is in addition to the cuts to the federal corporate income tax, which the PBO report did not look at but Jim Stanford has estimated to cost around $13 billion in annual revenue.

For comparison, reducing post-secondary tuition fees to 1992 levels (as proposed by this year's Alternative Federal Budget) would cost $2.8 billion and eliminating all university fees in Canada would cost $5.9 billion a year. (Based on 2014-15 projected average weighted tuition fees by province from CCPA's Degrees of Uncertainty report and enrollment by province from CANSIM 477-0019, projected forward at the average 5-year enrolment growth rate.) Or for less than the tax cuts, we could implement a national pharmacare program and a national affordable child-care program, which would cost $4.5 billion and $6 billion respectively once fully implemented, as proposed by the CCPA.

Although some on the right of the political spectrum might think $43.4 billion in annual tax cuts is something to be celebrated, the end result has been missed opportunities and undermined government capacity.

Additionally, consider the fact these tax cuts were all either implemented or allowed to continue during the period of deficits in recent years -- the fact that the government has given away such a large amount in tax cuts while running deficits balances, undermines this government's supposed "financial responsibility" credentials. As CCPA economist Armine Yalnizyan said at the launch of the 2014 AFB: "Canada doesn't have a deficit problem. Canada has a revenue problem."

Who really benefits from the tax cuts?

One of the most interesting things about the PBO report is a distributive analysis that determines who benefits from the measures across the income distribution and to what degree.

You may have heard some talking points or chatter on the twittersphere that these tax cuts mostly benefit "low- and middle-income" people. The reality is that it depends on how you define "benefits."

The PBO provided two ways to look at the distributive effect of the tax cuts: as a percentage of after-tax income and in a raw dollar value, by after tax decile.

Looking at the tax cuts by decile compared to average income, people in the third poorest decile received the largest benefit at 4 per cent of their income, with benefits relative to income declining from there. The higher up the income spectrum you go from there, the less benefit of a proportion of income you get.

However, just because lower-income households get a higher benefit as a percentage of their income does not mean that most of the benefits go to lower-income individuals. This is because 4 per cent of $26,905 (the average after tax income in the third decile) is far less than 2.3 per cent of $122,146 (the average in the ninth decile).

If every household in the country just got the same amount of this $30.4 billion, each household would get $1,939. However, for the tax cuts since 2005, the bottom 50 per cent of Canadian households don't even get that much -- with an average benefit of only $1,130 across the bottom 50 per cent.

On the flipside, those on the top get more than this basic equality. The more astute might ask why we're sending tax breaks to Canada's richest whose income has gone up substantially anyway due to income inequality. In fact the richest 5 per cent of Canadian households received on average $4,170 in tax breaks, despite this group capturing an ever-bigger share of income at the expense of the bottom 90 per cent of Canadians.

The question everyone should be asking is: of the $30.4 billion price tag for these tax cuts, how much goes to which group of people?

The answer*:

The top 20 per cent, whose incomes are at least $109,000 per year, receive more than the entire bottom half put together. And nearly half of the total spending on these tax cuts -- $14.9 billion -- goes to those in the top three income deciles.

In short, it would be inaccurate to say that most of the benefits of the Conservatives' $30.4 billion in tax cuts went to the middle class, as it is now being spun on social media.

Yes, the lower and middle class did slightly better than others relative to their lower levels of income, however in raw terms the greatest beneficiaries were those in the upper income ranges.

Kayle Hatt is a Research Associate with the Canadian Centre for Policy Alternatives' National Office and was the CCPA's 2013 Andrew Jackson Progressive Economics Intern.

*Calculated based on the benefits of the GST cut details in PBO Figure 14-2, the summary of personal income tax measures detailed in PBO Figure 2-3, and the costs of the total tax measures detailed in PBO Figure 1-2.