Mr. Trump’s administration is considered the most wealthy in American history, with members of his senior staff and cabinet worth an estimated $12 billion, according to a tally by Bloomberg. The Friday filings will add voluminous detail to that top-line figure. The White house chief of staff, Reince Priebus, for example, earned at least $1.18 million — nearly half of which came from the Republican National Committee, which he formerly led. His assets totaled between $604,008 and at least $1.26 million.

“I think one of the really interesting things that people are going to see today — and I think it’s something that should be celebrated — is that the president has brought a lot of people into this administration, and this White House in particular, who have been very blessed and very successful,” said Sean Spicer, the White House press secretary. The officials “have given up a lot to come into government by setting aside a lot of assets,” he said.

Until January, Mr. Kushner was the chief executive of Kushner Companies, a family-run real estate investment firm with holdings across the country. It is a growing business that has taken part in at least $7 billion of acquisitions over the past decade.

Late Friday, the White House released details of the plan devised by his advisers to avoid conflicts of interest between Mr. Kushner’s government role and the wide-ranging business empire he ran with his father. That business depends on foreign investment from undisclosed sources, as well as billions of dollars in loans from the world’s biggest financial services firms.

Although Mr. Kushner has stepped down from his management positions at the more than 200 entities that operated aspects of the family real estate business, he will remain a beneficiary of a vast majority of the business he ran for the past decade, through a series of trusts that already owned the various real estate companies.

The plan laid out on Friday “is not sufficient,” said Larry Noble, a former general counsel and chief ethics officer for the Federal Election Commission. “While removing himself from the management of the businesses is an important step, he is still financially benefiting from how the businesses do. This presents potential for a conflict of interest. Given his level in the White House and broad portfolio, it’s hard to see how he will recuse himself from everything that may impact his financial interest.”

While the filing discloses Mr. Kushner’s personal lenders, it does not provide information on his business partners or lenders to his projects.