[6] She was born in present-day Luuka District, in Busoga sub-region, in the Eastern Region of Uganda, on 27 April 1971.

From November 1999 until 2002, she worked as an accounts assistant at Lonrho Motors Uganda Limited, a private automobile dealership in Kampala.

From February 2008 until December 2010, she worked as a financial controller at Cooper Motor Corporation Uganda.

[5][9] In the 2021 Uganda presidential and parliamentary elections, Mbayon won another term of office(2021-2026)[10][11] She concurrently serves as the Chairperson of the district Women's League in the ruling National Resistance Movement political party and as Secretary of Busoga Women Leader’s Association.

[7] In November 2020, she lost her only son Ian Mawanda who died of heart complications after rigorous body work outs at the gym.