Financing exam concept
Amortized loan vs. balloon loan
A small monthly payment does not tell you how much will be due at the end. To compare these loans, check two dates: the maturity date in the note and the end of the payment-calculation schedule. Then ask whether the regular payments will actually retire the principal by maturity.
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The short answer
A fully amortized loan reaches a zero balance through its scheduled payments by maturity. A balloon loan requires a much larger final payment because the regular payments do not retire the debt during the actual term. It may pay some principal each month, so a balloon loan can be partially amortized. Interest-only payments leave principal unchanged during that period; they do not always mean the entire balance is due when the period ends. Negative amortization increases principal when unpaid interest is added to the balance.
This national Financing topic is part of the June 24, 2026 PSI broker outline. Financing as a whole accounts for about 10 of 100 scored national questions, not 10 questions on these loan structures. The calculations below use stated, simplified monthly assumptions. They are teaching examples, not quotes or approval of a loan product.
Compare the payment schedule with the maturity date
- Find the actual term. A five-year maturity means the remaining debt is due in five years unless a binding agreement provides otherwise. A payment calculated over 30 years does not promise 30 years to repay the loan.
- Trace principal separately from the total bill. Interest pays for the use of borrowed money. Only the principal portion reduces principal. Tax and insurance escrow deposits do not amortize the debt, even when collected with the same monthly payment.
- Check the ending balance. Fully amortizing payments retire the scheduled debt by maturity. Partially amortizing payments reduce principal but leave a balance due when the shorter term ends. Equal monthly payments alone do not distinguish the two.
- Read what follows an interest-only period. The principal generally stays level while all current interest is paid and no principal payments are made. Afterward, the contract may require higher amortizing payments or a lump-sum payoff. The end of the interest-only phase is not automatically the maturity date.
- Identify capitalized unpaid interest. If the stated payment is below accrued interest and the loan adds the shortfall to principal, the balance grows. That is negative amortization. Ordinary interest-only payments cover current interest and do not create that shortfall.
- Verify the repayment plan and disclosures. A future refinance depends on then-current value, income, credit, rates and lender approval. It is not an automatic extension. Read the note, schedule and applicable Loan Estimate or Closing Disclosure for the balloon amount and timing; a mathematical example does not establish that every loan structure is legally available.
| Structure | Regular payment | Principal trend | End of the period |
|---|---|---|---|
| Fully amortized | Interest and enough scheduled principal | Falls to zero by maturity | Ordinary final scheduled payment, with possible small rounding adjustment. |
| Partially amortized balloon | Interest and some principal | Falls, but not to zero by maturity | Remaining balance is due under the maturity terms. |
| Interest-only phase | Current interest, no scheduled principal | Stays level if no extra principal or capitalized charges | May switch to amortizing payments or end in a lump sum; read the note. |
| Negative amortization | Less than accrued interest, with shortfall capitalized | Rises | Later payments or payoff can be larger; the contract controls. |
Work through the facts
Fully amortized structure
A $300,000 fixed-rate loan has a 30-year term, and its 360 scheduled principal-and-interest payments are calculated to reduce the balance to zero.
- The term and amortization period are both 30 years.
- Every scheduled payment includes interest and principal.
- No unpaid balance remains after the final scheduled payment.
Answer: This is a fully amortized loan with no scheduled balloon.
Five-year maturity, 30-year payment calculation
A $200,000 loan has a 6% fixed annual rate and payments based on a 30-year amortization schedule, but a five-year maturity. For this example, 60 monthly principal-and-interest payments of $1,199.10 have already been credited. Use 0.5% monthly interest without rounding intermediate interest; assume no extra payments, fees or escrow in the calculation.
- The monthly payment is approximately the amount needed to amortize over 360 months.
- After the stated 60 payments, the remaining principal is about $186,109, rounded to the nearest dollar.
- The five-year term does not permit another 25 years automatically. The note determines the final amount and payment timing. If the 60th regular payment has not been credited, do not quote this after-payment balance as the entire amount due.
Answer: The loan is partially amortized and still has a substantial maturity balance.
First-payment allocation
A simplified monthly calculation gives a $240,000 unpaid balance, a 6% annual rate and a $1,600 principal-and-interest payment. A further $350 for escrow is collected with the bill.
- Use the monthly rate: 6% ÷ 12 = 0.5%. Interest is $240,000 × 0.005 = $1,200.
- Principal paid is $1,600 − $1,200 = $400. The $350 escrow deposit does not reduce principal.
- The new principal is $239,600. With the same assumptions, the next month's interest is $1,198 and its principal portion is $402.
Answer: The first payment reduces principal by $400, not by the full payment or escrow-inclusive bill.
Straight interest-only structure
A $180,000 three-year note requires monthly interest payments and makes the entire principal due at maturity.
- This example expressly makes all principal due at maturity.
- The stated periodic payments cover interest and do not reduce principal.
- Absent extra principal payments or other adjustments, the $180,000 remains due.
Answer: This is a straight or interest-only loan with a $180,000 principal balloon.
Negative amortization
A monthly payment is $1,050, but $1,320 of interest accrues and the note permits the unpaid amount to be added to principal.
- $1,320 minus $1,050 leaves $270 of unpaid interest.
- The deferred $270 is added to principal under the stated terms.
- The borrower owes more after making the payment.
Answer: The loan negatively amortizes by $270 for that month.
Balloon refinance assumption
A buyer accepts a seven-year balloon because the buyer expects to refinance, but the note contains no extension commitment.
- The unpaid balance is contractually due at seven-year maturity.
- A refinance will require future property, credit, income, rate, and lender approval conditions.
- Expectation does not amend the maturity obligation.
Answer: The buyer bears refinance and maturity risk unless a binding agreement provides otherwise.
Mistakes to avoid
- Calling every installment loan fully amortized. Regular payments can reduce principal yet still leave a balloon at maturity.
- Assuming equal payments mean no balloon. Compare the amortization period with the shorter loan term and resulting maturity balance.
- Calling all balloon loans interest-only. A partially amortized balloon loan pays some principal before maturity.
- Calling interest-only negative amortization. Interest-only covers current interest; negative amortization leaves some interest unpaid and increases principal.
- Including escrow in principal reduction. Property-tax and insurance deposits do not reduce the loan balance.
- Computing interest on original principal forever. Ordinary amortization interest is calculated from the current unpaid balance for the stated period.
- Calling every final payment a balloon. The ordinary last scheduled payment of a fully amortized loan is not a substantial balloon balance.
- Assuming extra principal automatically lowers next month's payment. Extra principal can reduce interest and payoff time, but payment recasting depends on loan terms and servicer action.
- Treating planned refinance as guaranteed. Future credit, income, value, rates, market conditions, and product availability can prevent refinancing.
- Ignoring disclosure definitions. Federal disclosure rules can define a balloon by its comparison with regular payments for a specific requirement.
- Assuming the end of an interest-only period is always a balloon date. The note may instead require amortizing payments over the remaining term. Check the next phase and actual maturity.
Check your understanding
These are original teaching questions, not recalled or predicted PSI questions. Answer first, then explain why the other choices fail.
1. A note requires level monthly payments for five years, calculated using a 30-year amortization schedule, with the remaining principal due at five years. Which description fits?
- An automatic 30-year loan regardless of maturity wording
- Interest-free because the payments are level
- Partially amortized with a balloon maturity balance
- Fully amortized over the five-year actual term
Show answer and explanation
Answer: C. Partially amortized with a balloon maturity balance
The payment calculation pays some principal but is not sized to retire all debt in five years. A level payment does not prove full amortization, eliminate interest or override the stated maturity. The remaining balance is due under the note.
2. A loan has an initial interest-only phase followed, under the note, by amortizing payments for the rest of its term. What follows from the end of that initial phase?
- The borrower begins the stated principal-and-interest payments; phase end alone does not establish a balloon
- The loan necessarily had negative amortization
- All principal must always be paid in a single sum that day
- The principal has already fallen to zero
Show answer and explanation
Answer: A. The borrower begins the stated principal-and-interest payments; phase end alone does not establish a balloon
The facts expressly provide a later amortizing phase. Interest-only payments do not reduce principal, but paying all accrued interest does not cause negative amortization either. The contract determines whether a phase change or an actual maturity payoff occurs.
3. Assume monthly interest is annual rate divided by 12. A $240,000 balance at 6% has a $1,600 principal-and-interest payment plus $350 escrow. How much principal does the payment reduce?
- $750
- $1,600
- $1,950
- $400
Show answer and explanation
Answer: D. $400
Interest is $240,000 × 0.06 ÷ 12 = $1,200. Subtract that from $1,600 to get $400 principal. The $350 tax/insurance escrow deposit does not reduce the mortgage principal; using the whole bill would overstate amortization.
4. After that $400 principal reduction, the balance is $239,600. At the same 6% rate and monthly method, what is the next month's interest?
- $1,200, because interest is always based on original principal
- $1,600, because the scheduled payment is fixed
- $1,198, because the current balance is multiplied by 0.5%
- $402, because interest equals the principal portion
Show answer and explanation
Answer: C. $1,198, because the current balance is multiplied by 0.5%
$239,600 × 0.005 = $1,198. With the same $1,600 principal-and-interest payment, principal reduction would then be $402. Level principal-and-interest payments can change their interest/principal split as the balance falls.
5. A $1,050 monthly payment is made when $1,320 interest accrues. The note adds the unpaid interest to principal. What happens to principal for that month, ignoring other charges or payments?
- It stays level because a payment was made
- It falls by $1,050
- It falls by $1,320
- It rises by $270
Show answer and explanation
Answer: D. It rises by $270
The payment leaves $1,320 − $1,050 = $270 interest unpaid. Capitalizing that shortfall increases principal by $270. Paying something does not guarantee principal reduction, and interest-only would require covering all current interest.
6. A borrower plans to refinance a five-year balloon loan but has no binding renewal or extension commitment. Which statement is accurate?
- The amortization period guarantees refinancing
- Property appreciation is guaranteed to cover the balance
- The balloon remains due at maturity, and future refinancing may be unavailable
- The loan becomes fully amortized if the borrower keeps making the old monthly amount
Show answer and explanation
Answer: C. The balloon remains due at maturity, and future refinancing may be unavailable
A plan to refinance does not change the note's maturity. Future underwriting, income, credit, rates and property value can prevent a replacement loan. Neither ongoing old payments nor a longer amortization calculation guarantees an extension or appreciation.
Common questions
What is an amortized loan?
An amortized loan uses scheduled payments to reduce principal over time while paying interest. In a fully amortized loan, the scheduled principal-and-interest payments reduce the balance to zero at the end of the loan term. In a partially amortized loan, payments reduce the balance but leave an unpaid amount due at maturity.
What is a balloon loan?
A balloon loan requires a final payment substantially larger than its regular periodic payments. A common structure uses monthly payments calculated over a long amortization period but makes the remaining balance due after a shorter loan term. The final lump sum is the balloon payment.
What is the difference between loan term and amortization period?
The loan term is the time until the unpaid debt becomes due. The amortization period is the period used to calculate payments that would retire principal. If both periods are 30 years, a fully amortized schedule can end at zero. If payments are calculated over 30 years but the term is five years, a balance remains due at five-year maturity.
Does every balloon loan have interest-only payments?
No. A partially amortized balloon loan pays interest and some principal, leaving a reduced balance at maturity. An interest-only structure may leave the original principal due if the note matures then. But an interest-only phase can instead be followed by amortizing payments. Read the full schedule rather than treating all interest-only phase endings as balloon maturities.
What is a straight or term loan?
In traditional exam vocabulary, a straight or term loan calls for periodic interest payments with the entire principal due at maturity. Because principal is not reduced by the regular interest payments, the maturity payment includes the full original principal. Modern documents and rules control actual products, so identify the stated payment pattern rather than relying only on the label. In modern lending, term loan can also describe amortizing credit, so the label alone is not a reliable interest-only test.
What is negative amortization?
Negative amortization occurs when a payment does not cover accrued interest and the unpaid interest is added to principal under the loan terms. The balance therefore grows despite the payment. An interest-only payment covers current interest and leaves principal level if no other principal payments or adjustments occur. Do not confuse these two patterns.
Does a fixed monthly payment mean a loan is fully amortized?
No. A partially amortized balloon loan can have equal monthly payments, and an interest-only loan can also have level payments while its rate remains unchanged. Compare the payment calculation with the actual maturity date and review whether the schedule reduces principal to zero.
Why is a balloon payment risky?
The borrower must have enough cash, sell the property, or qualify for replacement financing at maturity. Property value, income, credit, interest rates, lender standards, and market liquidity can change before then. A planned refinance is a strategy, not a guaranteed repayment source.
How do principal and interest change during amortization?
With a typical level-payment fixed-rate loan, the total scheduled principal-and-interest payment stays constant. Early payments contain more interest because the outstanding balance is higher. As principal falls, monthly interest falls and a larger share of each payment goes to principal. Principal repayment reduces debt; it does not guarantee that property value or total equity increases.
Does paying taxes and insurance with the mortgage reduce principal?
No. Tax and insurance escrow amounts are collected for those expenses. They do not reduce the mortgage principal. Separate the principal-and-interest amount from the total bill before allocating a payment. Even with a fixed principal-and-interest amount, the overall bill can change when taxes, insurance or other collected amounts change.
Where should a borrower look for a balloon feature?
Read the note and payment schedule. For transactions using the applicable Loan Estimate and Closing Disclosure, the Loan Terms section identifies the balloon feature, amount and timing. Section 1026.37(b)(5) uses a more-than-twice-a-regular-payment test for that specific disclosure, with special rules and interpretations. It is not a universal definition for every loan or legal purpose. Section 1026.18 has a different disclosure scope; do not use it as the only rule for a typical integrated-disclosure mortgage.
Are all balloon loans prohibited?
No. Legal availability depends on the transaction, creditor, product and applicable rules. CFPB explains that balloon payments generally are not allowed in Qualified Mortgages, with limited exceptions. The fact that a payment schedule can be calculated does not show that a particular creditor may offer it or that a borrower qualifies. This page compares structures rather than recommends a loan.
Is the balance in an amortization schedule the exact payoff amount?
Not necessarily. A schedule projects principal and interest under stated assumptions. A lender or servicer's date-specific payoff can include additional accrued interest and permitted unpaid charges. Check whether a quoted balance is before or after the final regular payment; otherwise that payment could be omitted or counted twice.
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Official sources and scope
Reviewed October 24, 2026 against the cited CFPB explanations, current Regulation Z provisions and PSI outline. The original monthly examples were recalculated separately. The five-year balance example assumes 60 regular payments have already been credited and rounds only the final displayed balance. Actual payment timing, posting, interest method, rounding and permitted charges can change a payoff. These are original study questions, not PSI questions or loan advice.
- PSI Illinois Candidate Information Booklet dated June 24, 2026
- Consumer Financial Protection Bureau, current mortgage amortization explanation
- Consumer Financial Protection Bureau, current monthly-payment and balloon-loan guidance
- CFPB: interest-only phases and what can follow, reviewed September 11, 2024
- CFPB: unpaid interest added to principal, reviewed September 11, 2024
- CFPB: balloon payments, maturity risk and Qualified Mortgage limitations
- Regulation Z Section 1026.37(b)(5): Loan Estimate balloon disclosure and interpretations
- Regulation Z Section 1026.38(b): Closing Disclosure loan terms
- Regulation Z Section 1026.18(s): distinct interest/payment disclosure scope
- CFPB: date-specific payoff versus balance, reviewed August 28, 2026
This is exam preparation, not advice for a specific transaction. State law and the applicable facts control. Our editorial and corrections process explains how to report an issue.