Under the plan, which will be announced in the next few days by the Treasury Department, the seven companies that received the most assistance will have to cut the annual salaries of their 25 best-paid executives by an average of about 90 percent from last year. Their total compensation — including bonuses and retirement contributions — will drop, on average, by about 50 percent. The companies are Citigroup , Bank of America , American International Group , General Motors, Chrysler and the financing arms of the two automakers. (The cuts are for 2009 only, a source told CNBC, and 2010 decisions will be made next year).

At the financial products division of the insurance giant, A.I.G., the locus of problems that plagued the large insurer and forced its rescue with more than $180 billion in taxpayer assistance, no top executive will receive more than $200,000 in total compensation, a stunning decline from previous years in which the unit produced many wealthy executives and traders.

In contrast to previous years, an official said, executives in the financial products division will receive no other compensation, such as stocks or stock options.

And at all of the companies, any executive seeking more than $25,000 in special perks — such as country club memberships, private planes, limousines or company issued cars — will have to apply to the government for permission. The administration will also warn A.I.G. that it must fulfill a commitment it made to significantly reduce the $198 million in bonuses promised to employees in the financial products division.