A balloon payment is a large one-time amount due near the end of a loan because the earlier scheduled payments did not fully pay down the principal.
A loan can use a long amortization schedule to set the monthly payment but require payoff after a shorter term. The unpaid principal then becomes due at the balloon date. The CFPB warns borrowers not to assume they will be able to refinance when that date arrives.
How balloon payment works
Calculate the scheduled principal-and-interest payment from the amortization period, apply each payment through the balloon month, and treat the remaining principal balance as the modeled balloon. The contractual payoff can also include accrued interest, fees, or other amounts, so a calculator is not a payoff statement.
Formula: balloon balance = original principal grown at the monthly rate through the balloon month − scheduled payment × annuity accumulation factor
Worked example
A $300,000 loan amortized over 30 years but due after 5 years has 60 scheduled monthly payments followed by the remaining principal. At 6% interest, the modeled payment is about $1,798.65 and the balance after payment 60 is about $279,163. The signed note controls the real due amount and date.
Common mistakes and review checks
Treat the result or document as one input to a decision. Verify the current source document, definitions, dates, and transaction facts before relying on it.
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Confusing a five-year loan term with a five-year amortization schedule.
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Budgeting only for monthly payments and treating a future refinance as guaranteed.
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Using the amortized balance as the final payoff without checking accrued interest, fees, and the payoff date.
This is general educational information, not legal or tax advice. Rules vary by state and locality and change over time — check your local law and confirm specifics with a qualified professional.
Related tools & guides
Editorial ownership
Written and maintained by the Aptoria editorial team
Content updated August 3, 2026. Editorial method reviewed July 28, 2026. Aptoria reviews scope, source fit, examples, limitations, links, and publication gates. This record does not claim attorney, CPA, lender, appraiser, or other independent professional sign-off.
Professional review is not claimed. Verify current law, tax treatment, loan terms, valuation inputs, and property-specific facts with the appropriate qualified professional before acting.
Primary and authoritative sources
CFPB: What is a balloon payment? ↗
Definition, end-of-term payment risk, and the warning that refinancing is not guaranteed (reviewed January 2, 2025).
CFPB Regulation Z: Loan Estimate disclosures ↗
The federal Loan Estimate disclosure definition of a balloon payment and where the balloon feature is disclosed.
Related terms
Financing
Interest-only loan
A loan on which you pay only the interest for a set period, so the balance does not shrink until principal payments begin.
Investing metrics
Amortization
The schedule by which a loan is paid off over time, with each payment split between interest and principal.
Financing
Mortgage refinance
Replacing an existing mortgage with a new loan, usually to lower the rate, change the term, or pull out built-up equity as cash.
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