After claiming new financial disclosure rules did not apply to him, U.N. Secretary-General Kofi Annan has now agreed to fill out financial disclosure reports required of all U.N. staff in the wake of the multi-billion dollar oil-for-food scandal.

A spokesman for Annan, said he would "voluntarily" fill out the new disclosure form, reporting any gifts over $250. 

U.N. critics said Annan's prior position that he was exempt from the requirement was disheartening. "I think that certainly doesn't say much of a CEO of an organization who has to be coerced into making a financial disclosure," said John Fawcett, a human rights activist whose work helped lead to the U.N. investigation.

Last year's investigation of the U.N. found Annan's son had questionable ties to a company that received U.N. contracts, but there was no suggestion that Annan himself had benefited in any way.

Given these recent scandals, Fawcett said, the United Nations should have accountability from the top down.

"If Kofi Annan had wanted to set an example, he would have done this in the first three months of his term rather than the last three," says Fawcett. "So I think the individual himself is not setting a good example, and to some extent he's not doing so because there's no oversight over the U.N."

A U.N. spokesman tells ABC News the Secretary-General will fill out the form soon but is not subject to any deadline, and no date has been set.

Annan is scheduled to leave the post this December when his term expires.