The report comes from an anonymous source familiar with a Justice Department tax investigation of Joe Biden’s son.
The breadth of the subpoena, issued Tuesday, underscores the wide scope prosecutors are taking as they examine the younger Biden’s finances and international business ventures.
Hunter Biden’s ties to Burisma in particular have long dogged the policy work and political aspirations of his father, Joe Biden.
It’s unclear whether Hunter Biden’s work at the Ukrainian company is a central part of the federal investigation or whether prosecutors are simply seeking information about all his sources of income in recent years.
A lawyer for the younger Biden, George Mesires, did not immediately return a phone message seeking comment for this story and a spokesman for the Biden transition team declined to comment.
Hunter Biden confirmed Wednesday that his taxes are under federal investigation.
The revelation comes at a delicate time for Biden, who is building his Cabinet and will soon decide on his nominee to run the Justice Department, the same department overseeing the investigation into his son.
In addition to the Burisma-related request, the subpoena issued last week also seeks information on Hunter Biden’s Chinese business dealings and other financial transactions.
The probe was launched in 2018, the year before his father announced his candidacy for president.
At one point in the investigation, federal prosecutors were also examining potential money laundering offenses, two people familiar with the matter told the AP.
Hunter Biden said he only learned of the investigation on Tuesday.
The younger Biden joined the board of Burisma in 2014, around the time his father, then vice president, was helping conduct the Obama administration’s foreign policy with Ukraine.
President Donald Trump and his allies have long argued that Hunter Biden’s work in Ukraine influenced the Obama administration’s policies toward the Eastern European nation.
Senate Republicans said in a report earlier this year that the appointment may have posed a conflict of interest but did not provide evidence that any policies were directly affected by Hunter Biden’s work.
The former vice president is not believed to be a focus of the investigation. He has not weighed in on the merits of the investigation, saying only to reporters on Friday that he was “proud of my son.”
For months, the U.S. attorney’s office in Pittsburgh has also been collecting information from Trump’s attorney, Rudy Giuliani, and others as part of the Justice Department’s process to receive and analyze information related to Ukraine, including documents Giuliani wanted to present to prosecutors that he had been gathering in Ukraine about Joe and Hunter Biden.
In announcing that process in February, Barr cautioned that the department had to be careful about any information coming from Ukraine, saying: “There are a lot of agendas in the Ukraine, a lot of cross currents. And we can’t take anything we received from Ukraine at face value.”
Adapted from reporting by the Associated Press.