This study aims to analyze the effect of age, marital status, education, and income on women's decisions to work in the formal and informal sectors. The population in this study are women working in the formal and informal sectors in West Nusa Tenggara Province in 2021. The data used is secondary data, namely SAKERNAS data taken from the Central Statistics Agency (BPS) of West Nusa Tenggara Province. The data analysis method uses logistic regression through the Stata 16 program. The results of this study indicate that the variable marital status has a positive and significant effect on the decision of women to work in the formal and informal sectors while the variables age, education, and income have a negative and significant effect on the decision of women to work in the formal sector. formal and informal. These findings indicate that the older the age of the female workforce, the less likely to work in the formal sector, the more likely the married female workforce is to work in the formal sector, the more likely they are to have an education to work in the formal sector, and the more likely to be female workers who have an increased income. working in the formal sector decreased.