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The Department of War received an anonymous donation of $130 million Thursday to go toward paying U.S. troops during the government shutdown — but Congress may need to get involved for it to actually get in the hands of service members due to legal limitations.

"On October 23, 2025, the Department of War accepted an anonymous donation of $130 million under its general gift acceptance authority," Pentagon spokesman Sean Parnell said in a statement to Fox News Digital Friday. "The donation was made on the condition that it be used to offset the cost of Service members' salaries and benefits. We are grateful for this donor's assistance after Democrats opted to withhold pay from troops."

But it’s unclear how the Trump administration can legally use the funds to pay troops without Congress’ involvement.

President Donald Trump and US Military Academy Superintendent Lt. Gen. Steven Gilland listen to the national anthem before Trump delivers the commencement address at the 2025 graduation ceremony at the US Military Academy West Point

The Department of War received an anonymous donation of $130 million Oct. 23, 2025, to go toward paying U.S. troops during the government shutdown.  (Charley Triballeau/Agence France-Presse)

While the government may accept general donations that go toward general funds available to the government, Congress must appropriate that money to go toward federal employees’ salaries, according to Romina Boccia, the director of budget and entitlement policy at the Cato Institute, a libertarian think tank in Washington.

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"The department is welcome to acknowledge this donor's intent but that does not change the legal restrictions on Congress needing to appropriate funds to pay military salaries," Boccia said in a Friday email to Fox News Digital. 

Boccia said that the military is only permitted to accept private donations to support institutions like military schools, libraries, and museums, or to support service members or civilian employees who are wounded or killed in the line of duty.

Altering current restrictions would also require congressional intervention, she said.

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Trump visits Selfridge Air National Guard Base

It’s unclear how the Trump administration can legally use the funds to pay troops without Congress’ involvement. (Scott Olson/Getty Images)

"The only way to get around this restriction is if Congress decided to recategorize troop pay as mandatory or direct spending," Boccia said.

Mandatory spending does not require annual approval from Congress and applies to programs like Social Security and Medicare, according to the Treasury.

Congress has the power of the purse, and Article I of the U.S. Constitution establishes that Congress is the branch of government with the authority to manage the federal budget.

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President Donald Trump

It’s unclear who the donor is, and President Donald Trump said he would not identify the individual unless he received permission to do so, noting he didn’t believe the individual wanted any recognition. (Brian Snyder/Reuters)

President Donald Trump announced Thursday that a "friend" of his had sent the government a $130 million check to go toward paying U.S. service members as their paychecks are on hold due to the budget stalemate.

"He called us the other day and said, 'I'd like to contribute any shortfall you have because of the Democrat shutdown. I’d like to contribute personally, because I love the military and I love the country,'" Trump said Thursday.

It’s unclear who the donor is, and Trump said he would not identify the individual unless he received permission to do so, noting he didn’t believe the individual wanted any recognition.

The White House referred Fox News Digital to the Department of War and the Department of the Treasury when asked for additional details.

The Hindustan Times speculated that Tesla CEO Elon Musk or Jared Isaacman, a commercial astronaut and the founder and CEO of payment processing company Shift4 Payments, could be the donor. 

Musk and Isaacman did not immediately respond to requests for comment from Fox News Digital. 

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The Treasury Department did not immediately respond to a request for comment from Fox News Digital.

Trump previously signed an order allowing active-duty troops to receive their paycheck earlier in October by funneling unused Pentagon funds originally allocated for research and development. However, Republicans have said the solution is only temporary.