Overall, Buffett donated U.S. $ 1.93 billion to five foundations during the year 2010. The rest was given to some of the foundations established in the name of Buffett's wife, Susan, and their three children.
Buffett, whose Berkshire Hathaway investment company, promised in 2006 to donate 99 percent of his wealth.
Donation this year is higher than the figure of U.S. $ 1.5 billion donated in 2009 as Berkshire Hathaway profit more.
Buffett is an administrator of the Gates Foundation which supports a variety of projects including polio eradication, the provision of small loans, and university scholarships. Gates Foundation employs 830 people and spend U.S. $ 3 billion years ago.
Susan Thompson Buffett Foundation provides scholarships for American high school students.
Buffett still has 43.9 trillion Berkshire shares, or 23.3 percent of the total, according to documents filed with the Security and Exchange Commission.
In 2006, Buffett did the largest charitable donation in the history of the United States, by providing U.S. $ 37 billion to the Gates Foundation.
In June, he and Gates called on the American billionaire to set aside half of their wealth to charity.
Following their donation, Buffett and Gates is now the richest man number two and number three in a row, behind the Mexican billionaire, Carlos Slim.
