Free Schedule Calculator
$0 runs in your browser
- Build complete amortization schedules
- Review totals, charts, and annual summaries
- Print the schedule and report
- Individual payment rows remain view-only
Amortization Software - $25 per license
Amortization Software for Accurate, Editable Loan Schedules
Amortization Pro is Windows amortization software for building detailed loan repayment schedules. Calculate principal and interest, review annual totals and payoff information, print complete reports, and edit individual payment dates, amounts, rates, and notes. Start online for free or purchase the full software for $25 per license.
Download the Windows evaluation · One-time license purchase. No subscription or recurring charge.
$25 per licenseNo subscription or recurring charge
Windows desktop softwareBuild and save schedules on your computer
Real support(608) 444-6575 · support@powerofinterest.com
Choose the right version
Start free, test the download, or unlock everything.
Each option uses the same practical approach to loan schedules, but the editing and saving capabilities differ.
Windows Evaluation
$0 five unrestricted uses
- Install and evaluate the desktop software
- Use full loan amounts for five schedule uses
- After five uses, principal is fixed at $60,000
- Register later without reinstalling
Amortization Pro
$25 per license
- Edit payment dates, amounts, rates, and notes
- Recalculate all later rows automatically
- Save and retrieve loan schedules
- Print annual totals and complete reports
- Use any loan principal amount
- Choose 1 license for $25 or 4 licenses for $100
See the software
Loan terms, totals, and charts in one clear workspace.
Enter the loan once
Set the principal, rate, dates, payment frequency, and calculation method, then build the full schedule.
Review the complete picture
See total interest, total paid, payoff date, remaining balance, and annual interest-versus-principal charts.
Practical product details
Simple software without a complicated subscription.
Local Windows application
The downloaded product is desktop software, not an HTML file or hosted account.
Installation-based registration
Open Register Software, copy the Installation ID, and request the one-time passcode for that installation.
Prompt support
Call or email with purchase, installation, download, or registration questions. We check messages often.
Customer feedback
Real reviews will be published as they are received.
We do not display invented ratings. Customers who have used Amortization Pro may send product-specific feedback for consideration on this page.
Used Amortization Pro?
Email your review, name or initials, and permission to publish it. Verified reviews can later be added visibly to the page and to the matching product schema.
Amortization guides
Understand common loan-schedule situations.
These practical guides explain how different payment structures affect principal, interest, timing, and payoff.
Amortization Schedules with Extra Payments
See how additional principal payments can change total interest and shorten the payoff period.
Read the extra-payment guideBalloon-Payment Amortization
Understand why a balloon balance remains and what to review before the final payment comes due.
Read the balloon-payment guideBiweekly Loan Amortization
Learn how payment frequency changes the timing of principal reduction and annual payment totals.
Read the biweekly guideChanging Interest Rates
Review how rate changes affect later payments, interest totals, and the remaining balance.
Read the changing-rate guideWindows Amortization Software
Compare the free online calculator, the downloaded evaluation, and the registered desktop version.
Read the Windows software guideBrowse All Guides
Use the guide library to learn about schedules, editing, payoff calculations, and software workflows.
Open the guide libraryQuestions
Frequently asked questions
What does Amortization Pro cost?
Amortization Pro is $25 per license. A 4-license pack is $100. Each purchase is a one-time charge with no subscription or recurring fee.
What is different about the free online version?
The free version builds and prints schedules, but individual payment-row dates, payment amounts, rates, and notes are view-only.
What is the downloaded evaluation?
It is the Windows desktop software. It allows five unrestricted schedule uses. After that, the principal is fixed at $60,000 until registration. Compare the free, evaluation, and registered versions.
How is the software registered?
After purchasing, open Register Software, copy the Installation ID, and send it with your payment information. We return the one-time passcode for that installation.
How do I get help?
Call (608) 444-6575 or email support@powerofinterest.com. We check messages often and respond quickly.
Build your first schedule now.
Use the free calculator immediately, or purchase one license for $25 or a 4-license pack for $100.