He was Member of Parliament for Asante Akim North Constituency from January 1997 until his death on 24 September 2008.
Prior to becoming a member of Parliament, he was a partner in Asante Wiredu and Associates, an accounting firm.
[5] Baah-Wiredu began his political career in 1997 as Member of Parliament for Asante Akim following his victory at the 1996 Ghanaian General Election.
He was one of the campaigners against the Union government (UNIGOV) concept promoted by General Acheampong's Supreme Military Council in 1978.
He held the portfolios of Local Government and Rural Development (2001–2003) and Education, Youth and Sports (2003–2005).He became the Minister for Finance and Economic Planning in 2005.
[6][7][8] In the year 2000, Baah-Wiredu won the general elections as the member of parliament for the Asante Akim North constituency of the Ashanti Region of Ghana.
He was elected over Kofi Opoku Manu of the National Democratic Congress, Kwabena Anafi of the Convention People's Party, James K. Baah of the People's National Convention, Emmanuel K. Adade of the New Reformed Party and Joseph B Frimpong of the United Ghana Movement.
[17] On 24 September 2008, Baah-Wiredu died in South Africa where he had been receiving medical treatment for a short illness.