The international community has pledged to spend some $25 billion on reconstruction and development in Afghanistan.
But, the report said, "just $15 billion in aid has so far been spent, of which it is estimated a staggering 40 percent has returned to donor countries in corporate profits and salaries".
While there are problems delivering development to Afghanistan due to poor security, government corruption and the ability of the country to absorb aid, major donors have fallen far behind on their pledges, ACBAR said.
The United States, by far the biggest donor, has paid out only half of the $10 billion it committed in aid to Afghanistan for the period 2002-2008, the Asia Development Bank and India only a third of their pledged assistance for the same period.
Two-thirds of international assistance to Afghanistan bypasses the Afghan government, undermining the rebuilding of its state institutions, the report said. International donors also do not coordinate well among themselves and with the Afghan government on where their money goes.
"The Afghan government says it does not have information on how one-third of all assistance since 2001 was spent - some $5 billion," the report said.
Norwegian diplomat Kai Eide is soon to arrive as the new U.N. envoy in Kabul with what U.N. officials called a "sharpened" role to increase coordination of international efforts in Afghanistan.
"The new UN envoy to Afghanistan has already highlighted the need for greater effectiveness of the international community effort in support of the government of Afghanistan," U.N. spokesman Aleem Siddique said.
"He has made clear that amongst his first priorities will be to listen to the needs and concerns of the Afghan government and reflect these concerns to Afghanistan's partners and donors in order to accelerate progress, improve coordination and overall effectiveness of the international community effort," he said.
ACBAR called on donors to increase spending on development and humanitarian aid in Afghanistan, fulfil their pledges of aid, coordinate spending more effectively and channel more funds through the Afghan government.
