Irish Calculators
Loans & mortgages

Balloon Loan Payment and Final Balance Calculator

Model the regular payment and additional balance due at a loan's stated maturity. The balloon is a contract input or financing scenario, not a guaranteed future vehicle value.

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Your numbers

€
Use the principal owed before the next interest period.
%
Monthly interest is the annual nominal rate divided by 12. This is not a fee-inclusive APR.
Your figures stay on this device.

How the calculation works

A balloon loan leaves an agreed amount to be cleared at maturity. This tool can find the regular payment from a known balloon, find the balloon from a known payment, or use a longer amortization term to calculate payments before an earlier maturity.

For a known balloon, solve the annuity with a discounted final balance. For an unknown balloon, accrue interest and subtract the regular payment each month until maturity. A longer amortization term first supplies that regular payment.

  1. Set the payment schedule

    The rate is nominal annually and is divided by 12. A known balloon is discounted along with the regular payments to match the opening principal.

  2. Track the residual principal

    When solving for the balloon, interest is added and the selected payment is deducted each month. Longer-amortization mode first calculates the regular payment over that longer term.

  3. Read the maturity payment

    The final cash payment includes both the last regular instalment and the remaining balloon. Total paid includes every regular instalment plus the additional residual.

Worked example: Interest-free balloon

Sample inputs demonstrate the method. They are not a forecast or product offer.

The example starts with €1,200 at zero interest, ten payments and a €200 balloon. The regular payments must clear €1,000, giving €100 each. The final date therefore requires €100 plus €200, or €300; total paid is €1,200.

Calculate
Monthly payment from a known balloon
Loan balance (€)
1200
Annual nominal interest rate (%)
0
Balloon due after (months)
10
Final additional balloon
200

Expected result

Regular monthly payment
€100.00
Final payment including last regular payment
€300.00
Total paid
€1,200.00
Worked example: Single period with a residual

Sample inputs demonstrate the method. They are not a forecast or product offer.

Calculate
Monthly payment from a known balloon
Loan balance (€)
1000
Annual nominal interest rate (%)
12
Balloon due after (months)
1
Final additional balloon
500

Expected result

Regular monthly payment
€510.00
Final payment including last regular payment
€1,010.00
Total interest
€10.00

Understanding your result

A low regular payment can leave a substantial final obligation. If it is below interest, unpaid interest can increase the residual under this mathematical scenario.

No future sale price, refinancing approval or lender permission is assumed. A scenario that clears the balance before the requested balloon date is rejected rather than displaying a negative balloon.

Questions you might have

Does the balloon replace the final regular payment?

Here it is additional to it. Both the residual after the last regular payment and the complete final payment are shown.

Can I use a long repayment schedule with an earlier maturity?

Yes. Select the longer-amortization mode and enter both periods. The loan balance after the last regular payment at the shorter maturity is the balloon.

Choosing the right inputs

Calculate
Select the quantity you actually need. Only the inputs relevant to that mode are used, so an inactive payment or balloon field does not alter the result.
Balloon due after (months)
Enter the number of monthly payments before maturity. In longer-amortization mode, the amortization term must be at least this long.
Final additional balloon
The balloon is additional to the final regular payment. Enter the residual principal after that payment, not the complete amount due on the last date.

Common mistakes to avoid

  • Do not count the last regular payment twice when entering a quoted maturity amount.
  • A vehicle residual is not automatically a guaranteed trade-in value.

Assumptions to check

  • Equal monthly periods and fixed nominal interest. The final lump sum is contractual or a scenario; it is not a guaranteed future vehicle value.

Sources and method

Read our calculation and testing approach.