台灣股票利潤計算 - 快速計算台股交易成本

LD Technology Co., Ltd.

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About this app

In the ever-changing Taiwan stock market, accurate cost and profit calculations are key to success. "Taiwan Stock Profit Calculator" is tailor-made for Taiwanese stock investors, abandoning the cumbersome operation and rigid interface of traditional computers. With a futuristic "trading terminal" visual style, it brings you an unprecedentedly smooth calculation experience.

Whether you are a long-term investor seeking stable dividends, a day trader who prefers short-term trading, or a large investor with substantial capital, this application can analyze the most accurate net profit, transaction fees, securities transaction tax, and break-even point for you in milliseconds.

🚀 【Three Core Functions, Comprehensive Coverage of Investment Scenarios】

I. 📊 Profit and Loss Cut-off Calculation (Supports Taiwan Stocks / ETFs / Day Trading) Don't let hidden transaction costs eat up your profits! We offer the most detailed customized parameter settings:

One-click switching between multiple tax modes: Perfectly corresponds to the securities transaction tax rates for general Taiwan stocks (0.3%), ETFs (0.1%), and day trading of spot stocks (0.15%).

Precise commission discounts: Supports stepless brokerage commission discount input from 1.1% to 10.0%.

Minimum NT$20 threshold mechanism: Built-in brokerage deduction logic of "commissions less than NT$20 are charged as NT$20", ensuring that the calculation result matches your settlement account amount 100%.

🎯 Exclusive "Target Profit Reverse Calculation" engine: Simply enter your desired net profit, and the system will automatically use an algorithm to instantly calculate a "suggested sell order price" covering all taxes and fees, so you no longer rely on gut feeling when setting profit targets!

Visualized Cost Pie Chart: Purchase fees, sales fees, securities transaction taxes, and net profit are all clearly displayed through a cool, dynamic pie chart.

II. ⚖️ Averaging Down Calculator (Essential for Unlocking Losses and Amplifying Profits)
When facing paper losses on your holdings, or when you want to buy more strong stocks on dips, precise capital management is crucial:

Intuitive Dual-Column Input: Enter the cost price and number of shares for both "Existing Loss-Making Stocks" and "Buying More on Dips."

Instant Average Cost Recalculation: With a single click, the system immediately calculates the "Latest Average Cost Price."

Overall Capital Management: Simultaneously displays your "Total Invested Capital" and "Total Number of Shares Held," helping you remain calm when adding to your positions, avoiding excessive pressure, and developing the safest strategies for unlocking losses or aggressive buying.

III. 💰 Ex-Dividend and Dividend Yield Calculation (A Perfect Partner for Stockholders)
During the annual ex-dividend season in the Taiwan stock market, how much dividend do you actually receive? Have you had any supplementary National Health Insurance premiums deducted? Let the system calculate it for you:

Estimated Actual Deposit Amount: Enter your purchase price, cash dividend per share, and number of shares held, and the system will instantly calculate the "actual amount" deposited into your bank account.

Automatic Second-Generation National Health Insurance Premium Deduction Detection: The system incorporates the latest regulatory logic. When a single dividend payment reaches a certain threshold (NT$20,000 or more), a 2.11% supplementary National Health Insurance premium will be automatically deducted, ensuring you don't miss out on your expectations.

Accurate Yield Display: Automatically calculates the actual yield on your current purchase cost, helping you assess whether the stock has long-term investment value.

✨ 【Exceptional UI/UX Interface Experience】

Cyberpunk Tech Terminal Style: Featuring an obsidian deep blue gradient background, neon glowing borders, and smooth dynamic animations, every click exudes a professional trading experience.

Localized Data Memory Function: Built-in local preference settings (SharedPreferences) automatically remember your preferred "commission discounts," "trading modes," and "NT$20 minimum return settings." No need to re-enter them the next time you open the app, saving time and effort.

One-Click Sharing of Professional Reports: After calculating profit and loss, simply click the share button to send a "professional analysis report" containing buy and sell prices, profits, ROI, and break-even points as plain text to LINE, Telegram, or note-taking apps for easy recording and discussion.

💡 【Target Audience】

Stock Market Newbies: Confused about how to calculate commissions and securities transaction taxes? This app is for you, guaranteeing you won't lose money.

Stock Market Investing Experts: Calculate dividend yields and second-generation health insurance annually to plan your passive income blueprint.

Daily/Next-Day Trading Masters: Carefully calculate every tick of profit, quickly calculate break-even points, and seize market opportunities. 🔒 【Privacy and Performance Guarantee】 All calculations in this application are performed locally on your mobile device (offline). Your input data, trading parameters, and financial calculation results will never be uploaded to any cloud server. Lightweight and low-memory, it opens extremely quickly, making it an indispensable tool besides your stock trading software.

Download 【Taiwan Stock Profit Calculator Pro】 now to build your own investment arsenal, let the data speak for itself, and let profits run!

(Disclaimer: All calculation results provided in this application are for reference only. Actual transaction fees and taxes may have slight errors (usually within ±1~2 NT dollars) due to differences in decimal rounding logic among different brokerages. This app does not constitute any investment advice, and users should bear their own investment risks when trading.)