Calculate your monthly payment, total interest, and final balloon amount with full amortization breakdown.
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Enter your loan amount, annual interest rate, full amortization term, and the year when the balloon payment comes due. Optionally add an extra monthly payment to see how it reduces the balloon. Click Calculate Balloon Payment to instantly see your monthly payment, total interest paid, and the lump-sum balance owed at the balloon date.
Balloon payment loans are common in commercial real estate, auto financing, and certain mortgage products. They offer lower monthly payments because they're calculated over a longer amortization period (say, 30 years) but become fully due after a shorter term — often 5, 7, or 10 years.
Here's a concrete example: A $200,000 loan at 5.5% amortized over 30 years has a monthly payment of about $1,136. After 7 years, you've paid around $82,000 but only reduced your principal by roughly $20,000 — leaving a balloon payment close to $180,000 due all at once. That's a shock if you're not prepared.
Businesses use balloon loans to keep cash flow low during a growth phase, planning to refinance or sell before the balloon hits. Homebuyers sometimes accept them for lower initial rates. Either way, understanding the exact balloon amount years in advance is critical for financial planning. This tool gives you that clarity immediately.
The monthly payment is calculated using the standard amortization formula based on the full loan term:
M = P × [r(1+r)^n] / [(1+r)^n − 1]
Where P = principal, r = monthly interest rate (annual rate ÷ 12), and n = total months in amortization period. The loan is then amortized month-by-month for the balloon period. Each month, interest accrues on the remaining balance, the rest of the payment reduces principal. After the balloon period, whatever balance remains is your balloon payment — due in full.
If you can't pay the balloon, you risk default and potential foreclosure or repossession. Most borrowers plan to either refinance into a new loan or sell the asset before the balloon comes due. Speak with your lender well in advance — many will negotiate an extension or refinance.
No. An interest-only loan requires only interest payments, so the full principal is due at the end. A balloon loan amortizes over a longer period, so each payment reduces principal slightly — the remaining balance at the balloon date is less than the original amount, but still a large lump sum.
Yes — and most borrowers do. Use this calculator's balloon amount as the new loan principal when estimating what your refinanced payments will be. Check for prepayment penalties in your original loan agreement before refinancing.
Because payments are calculated as if the loan will be repaid over a longer period (e.g., 30 years), even though the full balance is actually due in 7 years. The math spreads repayment over more time, reducing each monthly payment — but the tradeoff is a massive lump sum at the end.