Trump has often boasted that he built a multi-billion dollar real estate empire from a USD 1 million loan from his father.
New York: US President Donald Trump on Wednesday shrugged off a New York Times investigation that concluded he made his fortune with the help of more than USD 400 million from his parents, partly through tax schemes, as a boring, rehashed "hit piece."
Trump has often boasted that he built a multi-billion dollar real estate empire from a USD 1 million loan from his father, Fred, himself a prominent New York builder.
But the Times reviewed more than 100,000 documents including confidential tax returns and financial records that it said showed he actually received at least USD 413 million in today's money, in part through schemes to avoid taxes.
"They used the concept of 'time value of money' in doing a very old, boring and often told hit piece on me," he tweeted.
"Added up, this means that 97 per cent of their stories on me are bad. Never recovered from bad election call!"
Forbes magazine, meanwhile, estimated Trump's fortune at USD 3.1 billion -- the same as last year, but a third smaller than it was in 2015. Forbes ranked Trump's fortune at 259 in the world, down from 248 the year he was elected president.
The Times story said that from the time Trump was a toddler, his father funnelled millions of dollars to his four children through a sham corporation to avoid gift taxes.
The Times said the records also indicate that Trump helped his father take millions more in improper tax deductions.
- Father's favourite -
And he helped devise a scheme that undervalued his parents' real estate holdings by hundreds of millions of dollars, sharply reducing taxes on those properties when they were transferred to their children, according to the paper.
A lawyer for Trump, Charles Harder, called the account "100 per cent false, and highly defamatory."
"There was no fraud or tax evasion by anyone. The facts upon which The Times bases its false allegations are extremely inaccurate," he added.
"President Trump had virtually no involvement whatsoever with these matters."
Addressing a press conference, White House spokeswoman Sarah Sanders criticized the article's main claims, but said it was right in one important aspect: Trump's business acumen.
"I will say one thing the article did get right was that it showed that the president's father had a great deal of confidence in him.
"The president brought his father into a lot of deals and they made a lot of money together. His father went on to say that everything he touched turned to gold."
- Wealthy toddler -
The paper's contention that Trump was earning as much as USD 200,000 a year in today's money by the time he was three years old, and was the equivalent of a millionaire by the age of eight, drew considerable attention.
The assertion was pounced on by several late night talk show hosts, including comedian Stephen Colbert, the host of "The Late Show" on CBS.
"So, let me get this straight: At one point, Donald Trump was an extraordinarily wealthy toddler. And today? He is still that," he said.
Not everything, however, was a laughing matter: The Times said Trump's tax-hating father used various methods to funnel his wealth to his children and shield it from the Internal Revenue Service, some of which tax experts said were improper or possibly illegal.
Following the article's publication, the New York State Department of Taxation and Finance announced it was "reviewing the allegations in the NYT article and is vigorously pursuing all appropriate avenues of investigation."
Democratic Senator Ron Wyden called for federal tax authorities to investigate as well.
"It's critical that IRS fully investigate these allegations and prosecute any violations to the fullest extent of the law," Wyden wrote on Twitter.
Speculation about the source of Trump's wealth has mounted since 2015, when he declared his candidacy for the nation's highest office but broke with long-standing tradition by refusing to release his tax returns.
He has been repeatedly rebuked over ethics violations for refusing to divest his assets in the Trump Organization, instead turning over control of the entity to his sons, Donald Jr and Eric.
The president also continues to stay or make use of hotels and golf clubs he owns, leading to conflict of interest allegations and multiple lawsuits.
In July, a federal judge allowed a suit to proceed accusing Trump of violating the constitution by maintaining his interest in a hotel that does business with foreign governments.
It marked the first time a court interpreted the anti-corruption clause in the constitution, known as the emoluments clause, and applied it to a sitting president.