How the US payoff estimate is calculated
For each scheduled interval, the model calculates interest on the remaining balance using the nominal note rate divided by the selected payment frequency. It subtracts the payment from principal and interest, then repeats until the balance reaches zero. In the extra-payment scenario, the lump sum reduces principal at the start and the recurring extra is added to every scheduled payment.
The interest difference is the estimated interest saved before the charge. The calculator also reports the difference in payment counts. If a recurring extra or lump sum is entered, the single quoted charge is subtracted to show net estimated savings. A negative result means the entered charge is larger than modeled interest savings.
Worked example: $50,000 balance
Assume a $50,000 commercial loan balance at a 9% annual note rate, a $1,037.92 monthly payment, and 60 months remaining. Under the stated nominal-rate convention, the scheduled scenario estimates $12,275.03 in interest over 60 payments, with a final payment of $1,037.75.
If you add $250 to each payment and enter a $150 flat charge, the model estimates $9,317.46 in interest and payoff in 47 payments, including a final payment of $73.14. That is $2,957.57 less interest and 13 fewer payments; after the entered charge, estimated net savings are $2,807.57. These are hypothetical results and can differ from the lender's payoff amount.
Contract terms can change the payoff amount
Commercial notes may use daily simple interest, a 360-day or 365-day convention, payment dates that do not fall at equal intervals, minimum interest, yield maintenance, defeasance, or a step-down prepayment fee. The calculator does not determine those amounts. It models one flat charge supplied by you and assumes every extra payment immediately reduces principal.
Check whether your note permits additional principal payments, whether you must give notice, when a charge applies, and whether the lender applies an extra amount to principal or advances the next due date. Request an official payoff statement for a specific date. This tool is for planning only and does not predict approval or replace legal or accounting advice.
Payoff planning versus refinancing
A payoff comparison holds your current note rate and scheduled payment constant. If you are considering replacing the loan, compare the current debt with a new offer using a commercial refinance calculator, including new fees and the new term.
Inputs for the commercial loan payoff calculator
Current outstanding balance
Enter the remaining principal from your statement, not the original loan amount. Exclude fees unless they are already included in your current principal balance.
Note rate
Enter the annual interest rate on the note. This calculator divides the nominal annual rate by 12 for monthly payments or 52 for weekly payments; actual lender accrual conventions may differ.
Payment frequency and current payment
Choose monthly or weekly, then enter the required payment for that interval. The regular payment must cover interest and reduce principal.
Extra payment and lump sum
The recurring extra is added to every scheduled payment. A one-time lump sum is applied to principal before the modelled payment schedule begins.
Quoted prepayment charge
Enter a single flat charge only if the loan agreement or lender quote specifies one for the scenario. This field does not calculate yield maintenance, step-down penalties, or other contract-specific charges.
Maximum remaining term
This is the maximum horizon for the two schedules. A scenario that does not fully repay within this term returns an input message instead of an estimated savings result.
CALCULATOR QUESTIONS
Commercial Loan Payoff Calculator questions
Can I use this for a weekly commercial loan payment?
Yes. Choose weekly and enter the required weekly payment and weekly extra. The calculation uses 52 equal periods per year, which may differ from daily-interest schedules and exact calendar dates.
Does the calculator know my prepayment penalty?
No. Enter a flat charge from your own loan documents or lender quote. The tool does not calculate yield maintenance, defeasance, step-down schedules, or date-specific charges.
Does an extra payment automatically go to principal?
The model assumes it does. Your lender may require a principal-only instruction, apply the amount differently, or limit extra payments. Confirm the procedure in your note or with the servicer.
Why is net savings lower than interest saved?
Net savings subtracts the single prepayment charge you entered from modeled interest saved. If the charge is larger, the net result can be below zero.