Commercial & Investor Real Estate

Balloon Payment Calculator

Calculate monthly amortized payments and the final lump-sum balloon payment due at loan maturity.

Balloon Mortgage Parameters

$
%
$
Balloon due in84 months
Original Loan Amount$300,000

Regular Monthly Payment

$1,995.91/mo

Based on full amortization term

Final Lump-Sum Balloon Payment

$273,442

due at 84 months

Total Interest Paid Prior to Maturity

$141,098

Cumulative interest over balloon term

Principal Amortized Prior to Maturity

$26,558

Principal reduction before balloon

Principal Reduction Over Time

Shows how the loan balance decreases with each monthly payment until the balloon payment is due.

How a Balloon Mortgage Works

1

Monthly Payments

You make monthly payments calculated as if the loan amortizes over the full term (e.g. 30 years). These payments are lower than a short-term loan.

2

Principal Reduction

Each payment reduces your principal slightly, but because the payment is based on a long term, most of each payment goes toward interest early on.

3

Balloon Payoff

At the end of the balloon term, the remaining balance is due as a single lump-sum payment. You must pay it off, refinance, or sell the property.

Understanding Balloon Loan Structure and Refinancing Exposure

Amortization Schedule vs. Maturity

The extended timeframe used to calculate lower monthly payments versus the shorter date when the remaining debt must be paid in full.

Lump-Sum Balloon Obligation

The single large payment required at the end of the loan term to extinguish the unamortized balance.

Refinancing Risk

The exposure to higher market interest rates or stricter lending standards when replacing the balloon balance at maturity.

Sinking Fund Strategy

Accumulating reserve capital periodically during the draw term to offset or pay down the final lump-sum requirement.

Frequently Asked Questions

Loan Structure Comparison Matrix

Loan TypeCommon Amortization / Term SplitTypical Exit Strategy
Commercial Balloon Mortgage30 yr amort / 5-7 yr balloonRefinance at maturity
Investor Bridge Loan30 yr amort / 1-3 yr balloonSell or refinance after rehab
Owner-Financed Land20 yr amort / 3-5 yr balloonCash payoff or conventional refinance

3 Common Balloon Loan Mistakes

1

Assuming seamless refinancing at maturity without stress testing against potential interest rate spikes.

2

Neglecting property value fluctuations that could reduce equity and impede new loan qualification.

3

Miscalculating total interest costs by treating monthly payments as fully amortizing debt.

Balloon Payment Mathematical Formulas

PMT = P x [ (r/12)(1 + r/12)^N_amort / ((1 + r/12)^N_amort - 1) ]
Balloon Balance_m = P(1 + r/12)^m - PMT x [ ((1 + r/12)^m - 1) / (r/12) ]
Total Interest_m = (m x PMT) - (P - Balloon Balance_m)

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