The Times’s investigation, based on a vast trove of confidential tax returns and financial records, reveals that Mr. Trump received the equivalent today of at least $413 million from his father’s real estate empire, starting when he was a toddler and continuing to this day.

Much of this money came to Mr. Trump because he helped his parents dodge taxes. He and his siblings set up a sham corporation to disguise millions of dollars in gifts from their parents, records and interviews show. Records indicate that Mr. Trump helped his father take improper tax deductions worth millions more. He also helped formulate a strategy to undervalue his parents’ real estate holdings by hundreds of millions of dollars on tax returns, sharply reducing the tax bill when those properties were transferred to him and his siblings. ...

By age 3, Mr. Trump was earning $200,000 a year in today’s dollars from his father’s empire. He was a millionaire by age 8. By the time he was 17, his father had given him part ownership of a 52-unit apartment building. Soon after Mr. Trump graduated from college, he was receiving the equivalent of $1 million a year from his father. The money increased with the years, to more than $5 million annually in his 40s and 50s.