The introduction of microfinance institutions is viewed as the best alternative source of financial services for low-income earners as a means to raise their income and reduce poverty. However, empirical research has indicated that the majority of microfinance institutions' borrowers are over-indebted. Overindebtedness has negative consequences for debtors, creditors, and for the economy as a whole. Since over-indebtedness is a context-specific phenomenon, it lacks universally accepted indicators. This study aims to validate indicators of overindebtedness and examine the situation of over-indebtedness among microborrowers in the context of Tanzania. A survey of 535 micro-borrowers was conducted using a semi-structured questionnaire. Descriptive, thematic, and logistic regression techniques were employed for data analysis. Findings show that debt-toincome ratio, multiple borrowing, and delinquency have a positive and significant effect on over-indebtedness. Further, findings indicate that over-indebted microborrowers in Tanzania spend 75% or more of monthly income on servicing debts; are in the state of delinquency; are unable to meet basic needs due to loan repayment expenditure, have three or more credit commitments, and are in delinquency. To reduce over-indebtedness and hence poverty among micro-borrowers,