WASHINGTON — The Federal Communications Commission will double the amount of money it devotes to adding high-speed Internet connections in schools and libraries over the next two years, in an effort to meet President Obama’s promise to provide broadband service for an estimated 20 million American students in 15,000 schools, officials said Saturday.

Financing for the new spending will come from restructuring the $2.4 billion E-Rate program, which provides money for “advanced telecommunications and information services” using the proceeds of fees paid by telecommunications users. The proportion that goes to broadband service in schools and libraries will increase to $2 billion a year from $1 billion.

Mr. Obama referred to the changes during his State of the Union address last week. The changes will not require any additional taxes or assessments, according to an F.C.C. official who spoke on the condition of anonymity because a formal announcement was being planned for this week.

The E-Rate program is part of the Universal Service Fund, which also provides money to connect rural areas and low-income people to phone and Internet service using money raised through fees on consumers’ phone bills. The commission’s chairman, Tom Wheeler, is expected to announce details of the plan on Wednesday at an event for Digital Learning Day, which promotes the use of technology in education.