Warren Buffett has warned shareholders his time is nearly up, talked up his successor, and taken steps to protect Berkshire Hathaway and his legacy.

In this year’s letter, Buffett addressed the U.S. government while touching upon Berkshire Hathaway’s sizable tax payments. The company paid the IRS a staggering $26.9 billion last year—about 5 percent of what all of corporate America paid, noted the executive.

Warren Buffett is celebrating the successes of Berkshire Hathaway’s companies last year and in the 60 years since he took over a struggling New England textile company and began converting it into a massive conglomerate.