Bond Cost Calculator
Payment and performance bond premium from contract value.
Inputs
Results
Total Bond Premium ($)
$8,500.00
≈ 9 smartphones
How to Use This Calculator
- Enter the total contract value in dollars — this is the amount the bond must cover.
- Select the bond type: 0 for payment and performance combined, 1 for performance only, or 2 for payment only.
- Enter a credit/risk adjustment percentage — positive values increase the premium for higher-risk contractors, negative values apply preferred-contractor discounts.
- Enter the expected project duration in months; projects exceeding 12 months incur a duration surcharge.
- Read the base premium, adjusted premium, duration surcharge, total bond premium, and effective rate as a percentage of contract value.
How the result changes with Contract Value ($)
| Contract Value ($) | Total Bond Premium ($) |
|---|---|
| 100,000,000 | $524,750.00 |
| 350,000,000 | $1,774,750.00 |
| 650,000,000 | $3,274,750.00 |
| 900,000,000 | $4,524,750.00 |
What each input means
- Contract Value ($)
- Total contract value the bond must cover.
- Bond Type
- 0 = Payment & Performance combined, 1 = Performance only, 2 = Payment only.
- Credit / Risk Adjustment (%)
- Positive = higher risk (poor credit), negative = preferred contractor discount.
- Project Duration (months)
- Expected project length. Bonds over 12 months incur a duration surcharge.
What each result means
- Base Premium ($)
- Premium before bond type and credit adjustments.
- Adjusted Premium ($)
- Premium after bond type multiplier and credit modifier.
- Duration Surcharge ($)
- Extra charge for projects exceeding 12 months.
- Total Bond Premium ($)
- Final premium including all adjustments.
- Effective Rate (%)
- Bond premium as a percentage of contract value.
- Monthly Premium Cost ($)
- Total premium divided by project duration.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersContract Value ($) = 500000, Bond Type = 0, Credit / Risk Adjustment (%) = 0, Project Duration (months) = 12 = 4 input(s) provided
- Calculate Total Bond PremiumTotal Bond Premium = adjustedPremium + durationSurcharge8500 = $8,500
- Calculate Base PremiumBase Premium8500 = $8,500
- Calculate Adjusted PremiumAdjusted Premium = basePremium * typeMultiplier8500 = $8,500
Engine last updated . Checked against 2 independently-derived tests — how we verify calculators.
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