Amortization Calculator Balloon Mortgage

Professional amortization schedule for short-term financing with final lump-sum payments.

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Loan Parameters

Length used to set monthly payment.
When the full balance is due.

Understanding Balloon Mortgage Amortization

A balloon mortgage is a type of short-term loan that is structured like a traditional long-term mortgage (e.g., 30 years), but requires the remaining balance to be paid in full at a much earlier date (e.g., 5, 7, or 10 years). This final lump sum is the "balloon."

Calculation Methodology

The monthly payment is calculated using the standard annuity formula based on the full amortization term:

$$M = P \frac{r(1+r)^n}{(1+r)^n - 1}$$

  • P = Loan amount
  • r = Monthly interest rate (Annual rate / 12)
  • n = Total number of months (Amortization term × 12)

Numerical Example

If you borrow $200,000 at 6% interest for a 30-year amortization with a 5-year balloon:

  1. Monthly payment is calculated for 30 years (~$1,199).
  2. For 60 months (5 years), you pay this amount.
  3. At month 60, the remaining balance (approx. $184,000) becomes due immediately.

Frequently Asked Questions

They are often used by borrowers who plan to sell the property or refinance before the balloon term expires.

The risk is "reset risk"—if interest rates rise or home values drop, you may be unable to refinance or pay the large lump sum.

It is the remaining principal balance of the loan at the end of the specified balloon period.
Statutory Warning: Use these calculations as an informatory basis only. Do not take any financial, legal, or investment decisions based on the results of this calculator. Consult with a qualified professional before entering into any mortgage agreement.