Choose the workflow, not just the calculator
The basic per-diem calculation
Simple daily interest is commonly calculated as principal times annual rate divided by the day-count basis. The applicable denominator and date-count rule must come from the governing agreement or rule, not from the software.
What a payoff worksheet adds
A payoff worksheet brings the inputs and result together: borrower, balance as of a stated date, annual rate, per-diem interest, number of days, accrued interest, and total payoff through a target date. That makes the calculation easier to review later.
Why saving the calculation matters
If payoff dates move or the borrower calls back, reopening a saved calculation is faster than re-entering every field. It also reduces the chance of using a different balance or rate on a later version.
When you need a different tool
If the starting balance itself is uncertain because of irregular historical payments, reconcile the loan first. Daily-interest payoff software assumes you are starting from a balance and method you have already established.
Questions buyers ask
What is the current price?
Daily Interest & Payoff Calculator Pro is $25 as a one-time Windows software purchase.
Can it print or create a PDF?
The product page describes Print Preview, printing, and PDF output for the payoff worksheet.
Can I evaluate it before buying?
Yes. A free Windows evaluation is available.