NO ONE HAS IT HARDER THAN THEIR FATHER DID:

A notable problem with both the IRS income series and the Census Bureau's money income statistics is the omission of personal tax payments and noncash income items from the income measure. For example, neither income series includes food stamps, housing assistance to low-income families, or the free health benefits provided by companies to their employees and by the government to people enrolled in Medicare or Medicaid. The IRS income tabulation published by Piketty and Saez excludes all government transfer benefits, including cash as well as in-kind transfers.

An unfortunate side effect of these omissions is that an increasing percentage of the gross incomes received by Americans is excluded from the most commonly cited income measures.  At the same time, the two income series miss the effect of shifting tax policy on family tax burdens. The Congressional Budget Office has tried to remedy these deficiencies by including most of the missing income items in a more comprehensive income definition. In addition, it has adjusted the income statistics to reflect size differences among households. It seems plausible to think a single-person household can live more comfortably on $40,000 a year than a four-person family.  Household size has shrunk over time, so even if median household income has remained unchanged, the income available to support each household member has gone up.  Finally, the CBO has made adjustments in households' income to reflect the federal taxes they are expected to pay through social insurance contributions, personal and corporate income taxes, and excise taxes. (Unfortunately, the adjustments do not include the effects of state and local taxes.)

The CBO income measure is far from perfect, but it comes closer than the older income series to reflecting the spendable incomes of American families. If we define income to mean the annual resource flow available to a family to pay for its consumption, including health care, then the CBO income measure does a far better job than either the cash market income reported on families' income tax returns or the Census money income measure. Instead of showing that the incomes of low- and middle-income families barely budged after the late 1970s, the CBO tabulations suggest that Americans in the bottom one-fifth of the distribution saw their real net incomes climb by almost 50%.  Those in the middle fifth of the distribution saw their incomes grow 36%.  Their after-tax income gains are nowhere near as large as those enjoyed by the top 1%, who saw their after-tax incomes triple, but they reflect a sizeable improvement in household net incomes. The estimated gains are also more consistent with our aggregate statistics on the overall trend in disposable income.

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