---
title: "Medicare Income Tax Calculator"
type: "article"
slug: "medicare-income-tax-calculator"
url: "http://localhost/article/medicare-income-tax-calculator/"
markdown_url: "http://localhost/article/medicare-income-tax-calculator.md"
published_at: "2026-03-15T00:40:27+00:00"
modified_at: "2026-03-15T00:40:28+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "TS1000 BASIC program (approximately 2K) that calculates the Medicare catastrophic illness income surtax enacted for tax years 1989-1993. Supports all filing statuses (1-5), handles both-spouses Medicare eligibility and living-together scenarios, and computes taxes for each year based on legislated rate schedule (e.g., $800 ceiling in 1989, rising to $1050 by 1993). Displays a year-by-year table…"
category:
  - name: "Timelinez"
    slug: "timelinez"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/timelinez/"
post_tag:
  - name: "BASIC (programming language)"
    slug: "basic-programming-language"
    taxonomy: "post_tag"
    url: "http://localhost/tag/basic-programming-language/"
  - name: "TS 1000"
    slug: "ts1000"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ts1000/"
  - name: "Type-in program"
    slug: "type-in-program"
    taxonomy: "post_tag"
    url: "http://localhost/tag/type-in-program/"
model:
  - name: "Timex/Sinclair 1000"
    slug: "ts-1000"
    taxonomy: "model"
    url: "http://localhost/model/ts-1000/"
indiv:
  - name: "Herb Bowers"
    slug: "bowers-herb"
    taxonomy: "indiv"
    url: "http://localhost/indiv/bowers-herb/"
publication_r:
  id: 21571
  title: "Timelinez"
  type: "periodical"
  url: "http://localhost/periodical/timelinez/"
authors_r:
  - name: "Herb Bowers"
    slug: "bowers-herb"
    taxonomy: "indiv"
    url: "http://localhost/indiv/bowers-herb/"
volume: "7"
issue: "12"
issues_articles:
  - id: 38873
    title: "Timelinez v7 n7-12"
    type: "issue"
    url: "http://localhost/issue/timelinez-v7-n7-12/"
pages: "11"
pubdate: "July-December 1989"
archive_link: false
---

TS1000 BASIC program (approximately 2K) that calculates the Medicare catastrophic illness income surtax enacted for tax years 1989-1993. Supports all filing statuses (1-5), handles both-spouses Medicare eligibility and living-together scenarios, and computes taxes for each year based on legislated rate schedule (e.g., $800 ceiling in 1989, rising to $1050 by 1993). Displays a year-by-year table and includes a COPY option. Submitted as public domain.