AI 产品解读Chrome extension that bridges the Japanese e-Tax web application with a native Windows application and IC card reader for My Number card authentication and digital signing
Enables Japanese taxpayers to log into the government's e-Tax electronic tax filing system and digitally sign tax filings/applications using their My Number card and IC card reader through Chrome, which otherwise cannot directly access hardware card readers
User installs the extension and a companion native Windows app. When visiting e-Tax websites (login.e-tax.nta.go.jp, keisan.nta.go.jp, etc.), the content script injects hidden elements for communication. The web page dispatches custom events (NtaChromeLaunch) which the content script relays to the background script, which forwards messages to the native app via native messaging. The native app interfaces with the IC card reader to read the My Number card, perform authentication, and return signed data back through the chain.
Connect to native Windows app (nta.chrome.ext) via Chrome native messaging for IC card reader communicationEnable My Number card-based login to e-Tax (login.e-tax.nta.go.jp)Facilitate digital signing of tax filings and applications using electronic certificates on the cardSupport CSV file loading for tax application data preparationBridge communication between e-Tax web pages and the native card reader application
- 目标用户
- Japanese individual taxpayers filing taxes electronically via e-Tax / Japanese tax professionals and accountants / Businesses using e-Tax for corporate tax filings / Users with My Number cards and IC card readers
- Chrome Web Store detail was unavailable (API error), so no store description or rating info could be cross-referenced
- Cannot verify the native Windows companion app (nta.chrome.ext) as it is distributed separately by the National Tax Agency
- Cannot confirm whether the extension works without the native companion app installed
付费分析未识别到付费功能
This is an official free government extension from Japan's National Tax Agency (国税庁). No payment, subscription, license, premium, upgrade, or billing-related code was found in any source file. The e-Tax system is a free public service for Japanese taxpayers. The extension has no feature gating or paid tier.
- 置信度
- 98
- 支付平台
- --
- 来源
- AI / 高
- 需要登录
- 是
- 登录理由
- The extension is a bridge to Japan's e-Tax system (login.e-tax.nta.go.jp and related domains). Users must log in to e-Tax using a physical My Number card (マイナンバーカード) and IC card reader. The extension itself has no login UI or account system—it facilitates the connection between the e-Tax web app and a native Windows application that reads the card. The login is required at the destination service (e-Tax) to use the extension's core workflow.
