New York State tax authorities are reviewing allegations in a New York Times investigation that reported decades of tax evasion by President Donald Trump and his family.

The Times reported that President Trump received $413 million from his father Fred Trump over the span of decades, mostly through tax dodges that may have been illegal. The story, which TIME has not been able to independently verify, contradicts Trump’s claim that he is a self-made billionaire who built his real-estate empire from a $1 million loan from his father that he paid back with interest.

“The Tax Department is reviewing the allegations in the New York Times article and is vigorously pursuing all appropriate avenues of investigation.” James Gazzale, spokesman for Department of Taxation and Finance, told Bloomberg.

President Trump’s lawyer Charles Harder called the Times‘ story “100% false.”

“There was no fraud or tax evasion by anyone,” Harder said in a statement. “The facts upon which the Times bases its false allegations are extremely inaccurate. All estate matters were handled by licensed attorneys, licensed CPAs and licensed real estate appraisers who followed all laws and rules strictly. All matters were filed with the IRS and New York taxing authorities. The returns and tax positions that the Times now attacks were examined in real time by the relevant taxing authorities.

President Trump criticized the report on Wednesday morning on twitter, calling the story “a very old, boring and often told hit piece.”

The 15,000-word Times report details years of “tax schemes, including instances of outright fraud that greatly increased the fortune (Trump) received from his parents.” The story claims that Trump and his siblings helped set up sham corporations to disguise millions of dollars in gifts from their parents and that Trump helped formulate a plan to undervalue his parents real estate holdings by hundreds of millions of dollars.

All in all, the report concluded, Fred and Mary Trump transferred over $1 billion of wealth to their children, which should have produced a $550 million tax bill under the 55% tax rate. But, the report says, the Trumps only paid a total of $52.2 million, which is only 5%.

The Times said Trump is not likely to be criminally prosecuted for the reported tax evasion because of the statute of limitations but that there is no time limit on civil fines or tax fraud.

Get The Brief. Sign up to receive the top stories you need to know right now. Please enter a valid email address. Sign Up Now Check the box if you do not wish to receive promotional offers via email from TIME. You can unsubscribe at any time. By signing up you are agreeing to our Terms of Use and Privacy Policy . This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Thank you! For your security, we've sent a confirmation email to the address you entered. Click the link to confirm your subscription and begin receiving our newsletters. If you don't get the confirmation within 10 minutes, please check your spam folder.

Write to Gina Martinez at gina.martinez@time.com.