From a completely voluntary survey:
"People with $75,000 to $100,000 in annual income were most likely (45%) to say they pay too much in taxes, followed by those making more than $100,000 (43%). Just 3% said they pay too little.
"About 84% of Americans said they use online tools, tax software or hire a professional to prepare their returns. Only 13% said they prepare their taxes by hand on paper.
"Still, the Internal Revenue Service said Americans spend about 1.6 billion hours preparing taxes each year."
Other survey data
"People with $75,000 to $100,000 in annual income were most likely (45%) to say they pay too much in taxes, followed by those making more than $100,000 (43%). Just 3% said they pay too little.
"About 84% of Americans said they use online tools, tax software or hire a professional to prepare their returns. Only 13% said they prepare their taxes by hand on paper.
"Still, the Internal Revenue Service said Americans spend about 1.6 billion hours preparing taxes each year."
Other survey data