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The Office of the Accountant-General of the Federation is the Treasury of the Federal Republic of Nigeria. The Office is headed by the Accountant-General of the Federation who is the Chief Accounting Officer for the receipts and payments of the Federation. The Office is an Extra- Ministerial Department of the Federal Ministry of Finance. During the Military Administration in Nigeria, the re-organization of the Civil Service in 1988 created the Office under the Civil Service of the Federation.
The Constitution of the Federal Republic of Nigeria 1999 (as amended) further gave constitutional responsibility to the Accountant-General of the Federation to collate, prepare and publish the financial statements of the Federal Government and the Federation. The Office is responsible for the management of all Accounting functions relating to the receipts and payments of the Federal Government and the Funds of the Federation.