He signed it during a ceremony at the White House.

The law was signed just a day after the Republican-controlled House of Representatives passed the bill.

The signing ceremony was held on the South Lawn during the July 4 celebration.

The signing enacted key parts of Trump's agenda, which included tax cuts, spending boosts for defence and the immigration crackdown.

According to media reports, the celebration this year included military flyovers and stealth bombers, and fighter jets that recently hit Iranian nuclear facilities.

“We made promises, and it’s really promises made, promises kept, and we’ve kept them. There’s a triumph of democracy on the birthday of democracy, and I have to say that the people are happy,” Trump was quoted as saying by CNN on the balcony of the South Lawn alongside first lady Melania Trump.

Apart from boosting funding for immigration enforcement and defence, the bill extended tax cuts that Trump had first approved in 2017.

Reacting to the passage of the Bill, White House wrote on official X handle: "VICTORY: The One Big Beautiful Bill Passes U.S. Congress, Heads to President Trump’s Desk."

Democratic National Committee Chair Ken Martin criticised the Trump administration over the bill and wrote on X: " Republicans sided with Trump and his billionaire friends against hardworking Americans." "Don’t forget it," he said.

Department of Homeland Security (DHS) Secretary Kristi Noem today released the following statement on President Donald J. Trump’s historic signing of the One Big Beautiful Bill (BBB) Act into law. The BBB secures a historic $165 billion in appropriations for DHS, which will help deliver on the President's mandate to arrest and deport criminal illegal aliens and make America safe again. 

“President Trump’s signing the One Big Beautiful Bill is a win for law and order and the safety and security of the American people,” said Secretary Kristi Noem. “This $165 billion in funding will help the Department of Homeland Security and our brave law enforcement further deliver on President Trump’s mandate to arrest and deport criminal illegal aliens and MAKE AMERICA SAFE AGAIN!”