Here’s the math behind that depressing calculation. Today’s top federal income tax rate is 35%. Almost all Democrats in Washington want to repeal the Bush tax cuts on those who make more than $250,000 and phase out certain deductions, so the effective income tax rate would rise to about 41.5%. The 3% millionaire surtax raises that rate to 44.5%…

But that’s not all. Several weeks ago, Mr. Obama raised the possibility of eliminating the income ceiling on the Social Security tax, now capped at $106,800 of earnings a year. (Never mind that the program was designed to operate as an insurance system, with each individual’s payment tied to the benefits paid out at retirement.) Subjecting all wage and salary income to Social Security taxes would add roughly 10.1 percentage points to the top tax rate. This takes the grand total tax rate on each additional dollar earned in America to about 58%.

Then we have to factor in state income taxes, which on average add after the deductions from the federal income tax roughly another four percentage points to the tax burden. So now on average we are at a tax rate of close to 62%.