The biggest tax break in the country is for work-based health insurance, which will cost an estimated $760 billion over five years, according to CNN Money, which has published the top 10 largest tax breaks. Only one break in the top 10 is for corporations.
The second biggest group of tax breaks are those for retirement savings, such as 401(k)s, IRAs and pension plans. Those add up to $709 billion. Following this are breaks on capital gains and dividends, mortgages and child care. One tax break, the Earned Income Tax Credit, benefits low-income filers.