Balloon Loan Calculator
Find your fixed monthly payment and the final lump-sum balloon due at maturity. Adjust the loan amount, APR, amortization term, and balloon term to see how each input changes what you owe — both each month and at the end.
A balloon loan calculator estimates two numbers at once: a fixed monthly payment based on a long amortization schedule (often 15–30 years), and a lump-sum balloon payment due when the loan actually matures (typically 3–7 years). Because the monthly payment is sized for a much longer payoff than the loan's real term, the borrower keeps payments low — but is left with a large unpaid principal balance at the end. Balloon notes are common in commercial real estate, owner-financed home sales, and short-term auto financing.
bolt Quick Answer
A balloon loan calculator computes your monthly payment using the standard amortization formula over a long horizon (e.g. 15 years) but ends the loan early (e.g. 5 years) — leaving an unpaid balloon balance due in one final payment. On a $20,000 loan at 9% APR amortized over 15 years with a 3-year balloon, the monthly payment is about $203, and roughly $17,940 remains as a balloon at month 36. The math is identical to a regular installment loan; the only difference is that the term ends before the principal is fully paid off.
tips_and_updates Key Takeaways
- check_circle Monthly payments are calculated on the long amortization schedule, not the actual term — that's why they feel low.
- check_circle The balloon payment is the unpaid principal balance at the end of the shorter loan term.
- check_circle Total interest is far lower than a fully-amortizing loan only if you refinance or sell before the balloon comes due.
- check_circle If you can't refinance or pay the balloon, you risk default — many borrowers lock in a refinance plan up front.
- check_circle Balloon loans suit borrowers who expect a windfall, business sale, or property flip before the maturity date.
Estimate Your Monthly Payment & Balloon Balance
Drag the sliders to see exactly how loan amount, APR, amortization, and balloon term affect both the monthly figure and the final lump sum.
Estimated Monthly Payment
Loan Breakdown
Soft credit check — no impact to your score.
Why Run the Numbers Before Signing a Balloon Note?
Know the True Cost
The low monthly payment is only half the picture. The calculator surfaces the balloon balance — usually 60–90% of the original loan amount — so you can plan for it years in advance.
Pressure-Test Your Exit
Test refinance scenarios at higher rates. If a 2-point rate hike at maturity would break your budget, you'll know before you sign — not when the balloon is due.
No Credit Pull
All math runs in your browser. Nothing is submitted, no soft pull, no hard pull — just an instant view of monthly payments and the final balloon owed.
How a Balloon Loan Calculator Works
A balloon loan has two timelines that run side by side. The amortization schedule is the long horizon used to size your monthly payment — typically 15, 20, or 30 years. The balloon term is the short horizon when the loan actually ends — typically 3, 5, or 7 years. The calculator first solves the standard amortization formula M = P × r × (1+r)N / ((1+r)N−1) to find the fixed monthly payment, where P is the loan amount, r is the monthly rate (APR ÷ 12), and N is the amortization in months.
Then it tracks how the loan amortizes month-by-month. At the end of the balloon term, whatever principal remains becomes the balloon payment — a single lump sum due in one go. Mathematically, the balance after n months is B = P × (1+r)n − M × ((1+r)n−1) / r. Because the monthly payment is sized for a 15- or 30-year payoff but the loan ends in 3–7 years, very little principal is paid down — usually less than 15% of the original balance.
By the Numbers
On a typical $300,000 commercial balloon mortgage at 7.5% APR amortized over 25 years with a 5-year balloon, the borrower pays $2,217/month and still owes about $271,800 at the end of year five — roughly 91% of the original principal. The Federal Reserve H.15 release for January 2026 shows the average commercial mortgage rate at 7.51%, up 18 basis points YoY.
Where Balloon Loans Are Used
Balloon notes are most common in three settings: commercial real estate (5- and 7-year balloons on 25- or 30-year amortizations dominate the office and retail sectors), owner-financed home sales (sellers offer 5-year balloons to buyers who can't qualify for traditional mortgages), and specialty auto financing (high-end vehicles where the buyer expects to trade in or pay off early).
The federal Dodd-Frank Act significantly restricted balloon-payment residential mortgages after the 2008 housing crisis. Today, qualified-mortgage rules generally prohibit balloon features on owner-occupied home loans, with narrow exceptions for small creditors operating in rural or underserved areas. As a result, you'll mostly encounter balloon loans in the commercial, business, and seller-financed segments — not in mainstream consumer mortgages.
Sample Balloon Schedules at 9% APR (15-yr Amortization)
The table below shows how balloon balance grows as the balloon term shortens, holding the loan amount, APR, and amortization fixed. Notice how dramatically the balloon shrinks between a 5-year and a 10-year balloon — that's why borrowers planning to refinance often push the balloon term out as far as possible.
| Loan Amount | Balloon Term | Monthly Payment | Balloon Due | Total Interest |
|---|---|---|---|---|
| $20,000 | 3 years | $203 | $17,940 | $ 7,247 |
| $20,000 | 5 years | $203 | $15,790 | $ 8,000 |
| $20,000 | 7 years | $203 | $13,206 | $ 8,261 |
| $50,000 | 5 years | $507 | $39,476 | $19,886 |
| $100,000 | 5 years | $1,015 | $78,952 | $39,772 |
Calculations use standard monthly amortization at 9.00% APR over a 15-year amortization schedule. Figures are illustrative only; actual lender quotes vary by credit, collateral, and product type.
Three Strategies for Handling the Balloon
Most borrowers don't actually pay the balloon out of pocket. Instead, they plan one of three exit paths long before maturity. Choose the wrong one — or fail to qualify for the path you assumed — and a balloon loan can spiral into a forced sale or default.
- chevron_right Refinance into a fully-amortizing loan. The most common exit. The risk: rates may be higher in 5 years, or your credit/income may have weakened, leaving you unable to qualify for replacement financing.
- chevron_right Sell the asset before the balloon comes due. Standard for property flippers and small-business owners who plan to exit. Works only if the asset has appreciated enough to cover the unpaid balance plus closing costs.
- chevron_right Pay the balloon in cash from a planned windfall. Used by borrowers expecting an inheritance, business sale, retirement-account distribution, or insurance settlement. Tightly tied to a specific event — not flexible.
- chevron_right Negotiate a balloon extension or modification. Some lenders will roll the balloon into a new note for a fee. Less common, never guaranteed, and often comes with worse terms.
If any of these paths could fail, a fully-amortizing loan with the same monthly payment ceiling is almost always safer. Use the calculator above to find a traditional installment-loan term that produces a comparable monthly payment — many borrowers find a 20- or 25-year amortization gives them a similar monthly figure with no balloon risk.
Balloon Loan vs. Traditional Installment Loan
The two structures differ in three ways: monthly payment (lower with a balloon, because principal is barely touched), total interest (lower if you exit early, but potentially higher than a fully-amortizing loan if you refinance the balloon at higher rates), and risk profile (balloon = re-underwriting risk every few years; installment = fixed and final). For most consumer borrowers, the predictability of a fully-amortizing loan outweighs the modest monthly savings of a balloon. For business and commercial borrowers with predictable exit events, balloons remain a useful tool.
Balloon Loan Calculator FAQs
What is a balloon loan? expand_more
A balloon loan is a loan with low fixed monthly payments calculated on a long amortization schedule (often 15–30 years), but with a much shorter actual term (typically 3–7 years). At the end of the term, the borrower owes a single lump-sum 'balloon payment' equal to the unpaid principal balance — often 60–90% of the original loan amount.
How is the balloon payment calculated? expand_more
The balloon payment equals the loan's unpaid principal balance at the end of the balloon term. Mathematically: B = P × (1+r)^n − M × ((1+r)^n − 1) / r, where P is the original loan, r is the monthly interest rate (APR ÷ 12), n is the number of months in the balloon term, and M is the fixed monthly payment computed from the longer amortization schedule.
Are balloon mortgages still legal in 2026? expand_more
Balloon-payment residential mortgages on owner-occupied homes are heavily restricted under the Dodd-Frank Act and CFPB qualified-mortgage rules. They remain legal but mostly limited to small creditors in rural or underserved areas. Commercial real estate, business loans, owner-financed sales, and certain auto loans still routinely use balloon structures.
What happens if I can't pay the balloon? expand_more
If you can't pay the balloon at maturity and can't refinance, the lender can declare default, accelerate the loan, and pursue foreclosure (on real estate) or repossession (on auto/equipment loans). To avoid this, plan an exit strategy — refinance, asset sale, or planned windfall — at least 12–18 months before the balloon comes due.
Can I pay off a balloon loan early? expand_more
In most cases yes — but check your loan documents for prepayment penalties, which are more common on commercial balloon notes than on consumer loans. Paying down extra principal during the balloon term reduces the final balloon balance dollar-for-dollar and can shorten the effective payoff timeline.
How does a balloon loan compare to a 30-year mortgage? expand_more
A balloon loan and a 30-year fully-amortizing loan with the same amortization schedule produce identical monthly payments — but only the 30-year loan eliminates the balance over time. The balloon loan ends early with most of the principal still outstanding. Use the same monthly payment in a fully-amortizing loan whenever you can avoid the refinance/extension risk that comes with a balloon.
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