참택스(ChamTax)

What it does

ChamTax is a free calculator showing how much of a Powerball or Mega Millions jackpot you'd actually take home after taxes — compared across 21 countries of residency (US nonresident withholding + your home country's rules, lump sum or annuity). It's a static site, zero backend, built on GitHub Pages — no server cost. The tax-rate dataset is open (CC0) on GitHub/Kaggle. Would love feedback, especially on any country's tax treatment I got wrong.

Calculate your take-home pay after tax on a US Powerball or Mega Millions jackpot — including the $1.04 billion Powerball win, the 8th-largest ever. Covers tax rules for 51 countries of residence plus US nonresident withholding, all in one calculator.

US 미국 거주자 계산 시 적용할 주(State) (주세율이 0%~10.9% 로 크게 달라요 · 연방세는 별도로 합산돼요) 💬 복권 당첨금처럼 큰 금액에서는 싱글/기혼 여부와 상관없이 결과가 거의 동일해요 (구간 차이가 전체 금액의 0.1% 미만이라서요) 💡 한국 거주자는 어느 주(State)에서 당첨되든 미국 비거주자 원천징수(30%)가 동일하게 적용돼요 — 주세는 따로 계산하지 않아도 돼요. 일시불과 달리 연금은 발표된 잭팟 총액을 그대로 29년에 걸쳐 30번 나눠 받아요 (첫 회 이후 매년 5%씩 증액). 한 해에 몰리지 않아 세금 부담도 분산돼요. ※ 세금은 총액이 아니라 1인당 나눠 받은 금액 기준으로 다시 계산돼요 — 누진세를 쓰는 나라는 총액 기준보다 유리할 수 있어요. 실제 공동 당첨 시엔 지분을 명확히 정해두는 게 안전해요. ※ 연 7% 복리(S&P500 지수의 장기 평균 명목 수익률로 흔히 인용되는 값, 배당 재투자·인플레이션 미반영)로 단순 가정한 참고용 시뮬레이션이에요. 실제 투자수익률을 예측하거나 보장하지 않고, 원금 손실 위험도 있어요. ("OOO원 당첨 기준 · 거주자")도 삭제함 — 겹쳐 보인다길래 문구부터 손보려다가, styles.css:1049에 `#home-final-basis{ display:none; }`라는 무조건 숨김 규칙이 있어서 이 문단은 를 열어도 사용자 눈에 실제로 보인 적이…from chamtax.com

• 
  PowerballTax.comJun 2026 · powerballtax.com · ▲5

  Free, ad-free 2026 US lottery tax & payout calculator.

• 
  DebtMeltProApr 2026 · debtmeltpro.com · ▲107

  Compare debt payoff strategies and become debt-free faster

• 
  CalcMyTaxJun 2026 · calcmytax.org · ▲2

  Fast, transparent & easy tax calculations for modern pros 💰

• 
  TaxDebtWealthSuite — Free Financial ToolJul 2026 · taxdebtwealthsuite.com · ▲2

  Professional-grade financial calculators for US, UK, CA & AU

• 
  Pick Your Lucky Numbers2024 · apps.apple.com · ▲10

  Your ultimate lottery number picker!

• 
  Wealth Calculator 2025Nov 2025 · rich-calculator-2025.netlify.app · ▲5

  Visualize your path to $1M with DCA & Compound interest.

• 
  /dev/null▲487

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

• 
  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 28d ago · github.com

• 
  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 26d ago · github.com

• 
  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 23d ago · openbot.run

• 
  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 21d ago · talanoa.email

• 
  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 28d ago · corespeed.io

• TL
  The load-bearing vocabulary of Claude▲710

  Life & fun · Aug 2026 · louisabraham.github.io

• 
  Hey Noah▲656

  A proactive AI executive assistant for founders

  AI · Aug 2026 · heynoah.io

• 
  Clipto MCP▲655

  Hey HN, We recently built Clipto. It’s a tool that lets you search over terabytes of video, audio, and images on your computer, without relying on the cloud. Motivation: we probably all had this similar experience, we know a moment exists in a video or audio, but finding it takes hours scrubbing the timeline. You can send all the media to process in the cloud, but it’s slow, expensive and raises privacy concerns. So we decided to build our own on-device media search engine. How it works (high level): 1. We ingest video, audio, image; normalize formats via ffmpeg; run content analysis to…

  Work · Aug 2026 · clipto.com

• 
  Simple algorithm and color space to generate diverse skin tones▲627

  Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…

  Life & fun · Aug 2026 · toneyalexander.github.io

• 
  AdAnt AI▲620

  Claude for viral, high-converting social ads

  AI · Aug 2026 · adant.ai

• 
  Astute▲606

  Automate your B2B brand going viral, with new media creators

  AI · Aug 2026 · company-app.joinastute.com