Liberia's ex-President Gyude Bryant has been charged with embezzling more than $1m while in office.
Gyude Bryant led Liberia through a two-year peace process
Mr Bryant headed the country during a transitional phase after the end of the 14-year civil war in 2003.
His government is accused by regional body the Economic Community Of West African States, which oversaw the peace process, of stealing state funds.
President Ellen Johnson-Sirleaf came to power just over a year ago promising to crack down on corruption.
"The government of Liberia has formally charged the former chairman of the transition with theft," Information Minister Lawrence Bropleh said in a statement.
Mr Bryant was questioned by police over the corruption allegations twice last month.
At the time, Liberia's solicitor general said everyone named in the Ecowas report would be investigated as "million and millions of dollars" had gone missing.
Mr Bryant is a businessman and was appointed by regional peace brokers to lead Liberia's transitional administration when Charles Taylor went into exile in 2003.
After his initial appearance before the investigation board, he said he was disappointed by the process and did not expect his executive decisions to be probed.