Kreskin, that's a very good question.
I do not know what percent of ALL INCOME reported
does the top 50 percent make.
That's certainly one part of the missing picture here.
And so here it is :
http://www.canadiancontent.net/forums/posting.php?mode=editpost&p=214207
Statistics Canada link
c. Share of total income of the 3 groups
Income group % of total income
..........................................1990......... 2002
50% with lowest incomes .............19.0%....... 16.9%
40% with intermediate incomes...... 49.3%.......47.4%
10% with highest incomes............. 31.7%...... 35.7%
All Canadian taxfilers................ 100.0%..... 100.0%
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b. Effective federal personal income tax rates paid by the 3 groups Income group Federal tax as % of income
................................................1990..... 2002
50% with lowest incomes.................. 4.30%..... 2.89%
40% with intermediate incomes..........11.75%....10.14%
10% with highest incomes................ 17.79%....16.47%
All Canadian taxfilers..................... 12.25%... 11.18%
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CANADA
Income group % of federal personalincome taxes paid
.........................................1990..........2002
50% with lowest incomes..............6.7%.........4.4%
40% with intermediate incomes.....47.3%........43.0%
10% with highest incomes............46.0%........52.6%
UNITED STATES
For Tax Year 2003
Percent Ranked by Adusted Gross Income -------column 1
AGI Threshold on Percentiles ---------------------column 2
Percent of all Federal Income Tax recieved------column 3
Top 1% ..........$295,495...............34.27
Top 5%...........$130,080...............54.36
Top 10%..........$94,891................65.84
Top 25%..........$57,343................83.88
Top 50%..........$29,019................96.54
Bottom 50%...... $29,019............... 3.46