Microfinance PAR Calculator
Calculate Portfolio at Risk ratio for a Nigerian microfinance bank
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About Microfinance PAR Calculator
Monitor Portfolio at Risk for Microfinance Lending
The Microfinance PAR Calculator computes the Portfolio at Risk ratio, the gold standard metric for measuring loan portfolio quality in microfinance institutions worldwide. PAR tells you what percentage of your outstanding loan portfolio is at risk of default by measuring loans with payments overdue beyond a specified number of days. For microfinance banks and lending institutions serving low-income borrowers in Nigeria, PAR is not just a metric; it is the single most important number that determines institutional viability.
What PAR Measures and Why It Matters
The PAR calculation takes the total outstanding balance of all loans with payments overdue by more than a specified number of days (commonly 30 or 90 days) and divides it by the total gross loan portfolio. Note that PAR uses the entire outstanding balance of delinquent loans, not just the overdue installment amounts. This is because experience shows that once a borrower falls significantly behind on payments, the entire remaining balance is at elevated risk of loss.
PAR30 (loans overdue by 30+ days) is the most commonly used threshold and serves as an early warning indicator. PAR90 captures more seriously delinquent loans and aligns with the standard NPL definition. A microfinance institution with PAR30 above 10% is generally considered to have serious portfolio quality problems that threaten sustainability.
Using the Calculator
Enter your gross loan portfolio value and the outstanding balance of loans with payments overdue by your chosen threshold (30, 60, or 90 days). The Microfinance PAR Calculator instantly computes the PAR ratio and provides benchmarks based on industry standards. You can calculate PAR at multiple aging thresholds simultaneously to see the full delinquency curve of your portfolio.
The tool also lets you include restructured or rescheduled loans in the at-risk calculation, which many experienced microfinance practitioners recommend since restructuring often masks rather than resolves underlying repayment problems. All calculations run in your browser with no data transmitted externally.
Who Depends on This Metric
Microfinance bank managers track PAR as their primary portfolio health indicator, often reviewing it weekly or even daily. Credit managers and loan officers use PAR trends to identify early signs of portfolio deterioration and trigger remedial actions. Board members and governance committees expect regular PAR reporting as part of their oversight responsibility.
Investors in microfinance, including social impact investors, development finance institutions, and commercial funders, evaluate PAR when making lending or equity investment decisions. Regulators including the CBN use PAR-equivalent metrics when examining microfinance bank health. Microfinance networks and industry associations collect PAR data for benchmarking and sector health monitoring.
PAR Benchmarks for Nigerian Microfinance
Industry standards suggest that well-managed microfinance institutions should maintain PAR30 below 5% and PAR90 below 3%. In practice, Nigerian MFBs face unique challenges including economic volatility, seasonal income patterns among agricultural borrowers, and the operational complexity of managing large numbers of small loans across dispersed geographies. These factors mean that PAR levels in the Nigerian microfinance sector often exceed global benchmarks.
Use the Microfinance PAR Calculator to track your PAR trend over time rather than fixating on a single snapshot. A deteriorating trend demands immediate attention even if the absolute level is still below benchmark thresholds.
Strategies for PAR Improvement
Prevention starts at origination. Strong credit assessment processes, appropriate loan sizing relative to borrower capacity, and group lending methodologies with social collateral all help keep delinquency low. Once delinquency occurs, early follow-up is critical. Microfinance experience worldwide shows that the probability of recovery drops sharply the longer a loan remains overdue. Establish clear collection escalation timelines and ensure loan officers prioritize follow-up on early delinquencies before they become entrenched defaults.