---
title: "Pay Off That Debt! Loan Amortization Program"
type: "article"
slug: "pay-off-that-debt-loan-amortization-program"
url: "http://localhost/article/pay-off-that-debt-loan-amortization-program/"
markdown_url: "http://localhost/article/pay-off-that-debt-loan-amortization-program.md"
published_at: "2026-03-13T23:50:59+00:00"
modified_at: "2026-03-13T23:51:00+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "TS2068 BASIC program that calculates monthly loan payments and generates a complete amortization table. User inputs loan amount (PV), number of months (N), and interest rate (I); the program computes the monthly payment using the standard annuity formula and displays a month-by-month table of principal paid, cumulative interest, and remaining balance. Sample output shows a…"
category:
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    url: "http://localhost/tag/ts2068/"
  - name: "Type-in program"
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model:
  - name: "Timex/Sinclair 2068"
    slug: "ts-2068"
    taxonomy: "model"
    url: "http://localhost/model/ts-2068/"
indiv:
  - name: "Walt Gaby"
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    taxonomy: "indiv"
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publication_r:
  id: 21571
  title: "Timelinez"
  type: "periodical"
  url: "http://localhost/periodical/timelinez/"
authors_r:
  - name: "Walt Gaby"
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    url: "http://localhost/indiv/walt-gaby/"
volume: "2"
issue: "11"
issues_articles:
  - id: 38811
    title: "Timelinez v2 n11"
    type: "issue"
    url: "http://localhost/issue/timelinez-v2-n11/"
pages: "1"
pubdate: "November 1984"
archive_link: false
---

# Pay Off That Debt! Loan Amortization Program

TS2068 BASIC program that calculates monthly loan payments and generates a complete amortization table. User inputs loan amount (PV), number of months (N), and interest rate (I); the program computes the monthly payment using the standard annuity formula and displays a month-by-month table of principal paid, cumulative interest, and remaining balance. Sample output shows a $2500 loan at 14.75% over 11 months computing to $244.38/month. Based on a routine by J.C. Giarratano from a TS1000 guidebook.