(Recasts first paragraph, updates throughout with more details from IMF report)
NEW YORK/LONDON, Feb 1 (Reuters) - The International Monetary Fund said Argentina is committed to accumulating international reserves and stemming a central bank financing of government debt under the latest review of its $44 billion loan program, as the global lender backed a set of reforms proposed by President Javier Milei's new administration.
The IMF called Milei's stabilization plan for Argentina's embattled economy "bold" and "far more ambitious" than those put forth by his predecessors in the South American country, citing the reform mandate of his landslide election victory late last year as a positive given the challenges of its implementation.
"The authorities' strong ownership and electoral mandate to eliminate fiscal deficits and long-standing impediments to growth (many benefiting vested interests) mitigate implementation risks," the IMF said in a staff report on Argentina published on Thursday.
Yet the IMF acknowledged that risks to the program's success are high, given the "very difficult inheritance" from failed policies and a "complex political and social backdrop, with a fragmented Congress, falling real wages, and high poverty."
Milei, a right-wing libertarian who became a lightning rod for voter anger last year as Argentina faced its worst economic crisis in decades, faces a major challenge to push an omnibus reform bill through Congress, with his coalition having only a minority in both chambers.
His government yanked a divisive fiscal section from the bill last week to boost support.
The IMF review set new central bank reserve accumulation targets, moving to a target of $6.0 billion by the end of March from a previous one of $4.3 billion; the end-June target rose to $9.2 billion from $7.3 billion and the goal for the end of September was set at $7.6 billion.
The global lender extended the duration of its $44 billion program by three months to allow for time to implement the government's current stabilization plan and build out reserves, with the program now running through Dec. 31, from an earlier Sept. 24 cut-off.
The remaining program reviews, as previously reported by Reuters, have been delayed to May, August and November of this year. (Reporting by Rodrigo Campos and Jorgelina do Rosario; Editing by Paul Simao)
