π Balloon Payment Calculator
Small payments now, one big payment later.
Lump sum owed at the end of the term
Estimates for planning only, not financial advice.
A balloon loan pairs a short term with a long amortization: payments sized for 25 years, everything due in 5. On $250,000 at 7 percent with a 5-year term and 25-year amortization, the payment is $1,766.95 a month, but month 60 brings a $227,905 balloon. Only $22,095 of principal is repaid in 5 years; the rest of the payments were mostly interest. The product is honest about the trade, low payments for a hard deadline, and borrowers must be equally honest about their exit.
How to Use This Calculator
Enter the loan amount, interest rate, the actual loan term (when the balloon hits), and the amortization period the payments are based on. The calculator shows the monthly payment, the balloon amount, total paid over the term, and how the balloon compares to the original loan.
Enter loan amount and rate, then the term in years: this is the balloon date, not the payment schedule.
Enter the amortization period. Longer amortization means smaller payments and a bigger balloon; the calculator shows both sides.
Read the balloon and start exit planning 12 to 18 months early: refinance quotes, sale timeline, or extension talks. For refinancing math, use our refinance break-even calculator.
The Math
The payment formula uses the long schedule; the balloon is whatever is left after the short term's payments. Because early payments are interest-heavy, the balloon stays close to the original principal: in our example, 91 percent of the loan is still owed after 5 years. Extending amortization from 25 to 30 years would cut the payment to $1,663 but push the balloon to $231,600; the trade is always payment comfort today versus lump sum tomorrow.
Worked Example: $250,000 at 7 Percent
Loan: $250,000. Rate: 7 percent. Term: 5 years (60 payments). Amortization: 25 years (300 payments). Monthly payment: $1,766.95. After 60 payments the balance, the balloon, is $227,905. Total paid over the term: 60 x $1,766.95 + $227,905 = $333,922, of which $83,922 is interest and only $22,095 reduced principal.
Compare a fully amortizing 5-year loan at the same rate: payment $4,950.30, total interest about $47,018, balloon zero. The balloon loan's payments are $3,183 lower each month, but it costs about $36,900 more in interest and leaves $227,905 still owed. That is the real price of the low payment, and it is worth paying only when the exit (sale, refinance) is genuinely planned.
Where Balloon Loans Appear
| Loan type | Typical structure | Standard exit |
|---|---|---|
| Commercial real estate | 5-10 yr term, 20-25 yr amort | Refinance or sale |
| Land loans | 3-5 yr term, interest-only or amortizing | Develop and sell, or refinance |
| Bridge loans | 6-24 months, interest-only | Sale or permanent financing |
| Some auto loans | 5-6 yr term, 8+ yr amort | Refinance or trade-in |
Residential balloons are rare now, but commercial borrowers live with them constantly. The underwriting question is always the exit: lenders size balloons against the property's stabilized value and the borrower's refinance capacity, not against hope.
Surviving the Balloon
Three rules. First, calendar the maturity 18 months out and start the refinance or sale process then; appraisals, credit repair, and buyer searches all take longer than expected. Second, make extra principal payments during the term if cash flow allows: each extra dollar directly shrinks the balloon, and $200 a month extra cuts about $13,700 off our example's balloon. Third, keep a relationship with the lender: extension options are negotiated, not automatic, and a borrower with a plan gets better terms than one with a surprise.
If rates at maturity are much higher than at origination, model the refinance payment before committing to anything: our loan amortization calculator shows the new payment schedule, and the business loan calculator prices commercial alternatives. A balloon is a bet that the future will cooperate; hedge it with preparation, not optimism.
Managing Balloon Risk
A balloon mortgage is a bet that you will refinance or sell before the due date, so underwrite the bet explicitly. Model the worst case: rates 3 points higher at maturity, your home value flat, and your income unchanged. If you could not refinance or sell in that world, the balloon is too big a risk. Lenders know this, which is why balloon qualification often uses the fully amortized payment, but the risk still lands on you.
Three hedges reduce the danger. Make extra principal payments during the term so the balloon shrinks even if plans change. Keep the loan-to-value low enough that refinancing stays available if prices dip: 70 percent LTV survives a 20 percent price fall that kills an 85 percent LTV refinance. And calendar the maturity 12 months out to start the refinance or sale process early; scrambling in the final 90 days surrenders all negotiating power. A balloon is a tool, not a plan; the plan is the exit.
Estimates for planning only, not financial advice.
Frequently Asked Questions
What is a balloon payment?
A balloon payment is a large lump sum due at the end of a loan whose monthly payments were calculated as if the loan lasted longer. A $250,000 loan at 7% with a 5-year term but 25-year amortization has payments of $1,766.95 and a $227,905 balloon due in month 60. The small payments come with a big ending.
How is a balloon payment calculated?
Compute the monthly payment using the long amortization schedule, then find the remaining balance after the short term's payments: that balance is the balloon. Payment = P x r(1+r)^n / ((1+r)^n - 1) with n = amortization months; balloon = balance after term months. This calculator does both steps.
Why do loans have balloon payments?
To offer lower payments than a fully amortizing loan of the same term, usually in commercial real estate and some auto loans. The lender gets a shorter commitment, the borrower gets manageable payments, and both assume a refinance or sale before the balloon hits. It works when the exit is real and dangerous when it is assumed.
What happens if I cannot pay the balloon?
You must refinance, sell the asset, or negotiate an extension, all from a weak position if rates rose or the property fell in value. Defaulting triggers the lender's remedies against the collateral. The time to solve a balloon is 12 to 18 months before it hits, not the month it is due.
Balloon vs fully amortizing loan: which costs more?
The balloon loan usually shows lower payments but similar or higher total cost: you pay interest on a barely-shrinking balance for years, then still owe nearly the original principal. Compare total interest plus the balloon against the fully amortizing alternative; the payment difference is marketing, the total cost is math.
Are balloon mortgages common for homes?
Rare for primary residences since qualified-mortgage rules pushed lenders away from them; common in commercial property, land loans, and some portfolio lending. If a residential offer includes a balloon, read it as a commercial-style loan and plan the exit (sale or refinance) as the actual repayment strategy.
Can I refinance a balloon loan?
Yes, and that is the standard exit: refinance into a fully amortizing loan before the balloon matures. Start 12 to 18 months early in case appraisals disappoint or credit needs work. The risk is refinancing in a high-rate environment, which is why balloon borrowers should track rates from day one.
How do extra payments affect the balloon?
Dollar for dollar in the good direction: extra principal reduces the balance the balloon is computed from. On our $250,000 example, $200 extra a month for 5 years cuts the balloon by about $13,700 (plus interest effects). If you cannot fully amortize, partial prepayment still shrinks the landing.
What is a bullet loan vs a balloon loan?
A bullet loan pays interest only with the entire principal due at maturity (balloon = full principal). A balloon loan amortizes partially, so the balloon is smaller than the original principal. Bullets are common in bridge and construction lending; balloons in term commercial loans.
Should I take a balloon loan?
Only with a dated, realistic exit: a property sale under contract timeline, a refinance you already qualify for, or cash flow that will cover the balloon. "We'll figure it out in 5 years" is not an exit plan. If the balloon payment would ruin you and no exit is certain, take the higher payments of the amortizing loan.