Here are a few options for the “稅額計算” post tag description, ranging in formality and detail:

**Option 1 (Concise & General):**

> 稅額計算 (Shuì’é jìsuàn)：詳解稅款的計算方式，助您了解應繳納的稅額。

* **Translation:** Tax Calculation: Explains the methods for calculating taxes, helping you understand the taxes you should pay.
* **Why this works:** Clear, concise, and provides a general understanding.

**Option 2 (Slightly More Informative):**

> 稅額計算 (Shuì’é jìsuàn)：涵蓋各種稅項的計算公式、稅率，以及相關的稅務知識，讓您輕鬆掌握稅務申報所需的資訊。

* **Translation:** Tax Calculation: Covers calculation formulas, tax rates for various tax items, and related tax knowledge, making it easy for you to grasp the information needed for tax filing.
* **Why this works:** More detailed, mentioning specific aspects like formulas and rates.

**Option 3 (Focusing on User Benefit):**

> 稅額計算 (Shuì’é jìsuàn)：提供針對個人所得稅、營業稅等常見稅項的計算工具和實用指南，幫助您精準預估及管理稅務支出。

* **Translation:** Tax Calculation: Provides calculation tools and practical guides for common tax items such as individual income tax and sales tax, helping you accurately estimate and manage your tax expenses.
* **Why this works:** Focuses on the practical benefits for the user, e.g., estimation, management.

**Option 4 (Most Formal & Legal-Tinged):**

> 稅額計算 (Shuì’é jìsuàn)：探討依據中華民國相關稅法，針對不同收入來源及經濟活動所產生的應納稅額之計算方法。包含稅基、稅率、扣除額等關鍵要素的分析。

* **Translation:** Tax Calculation: Discusses the methods for calculating payable taxes based on relevant laws and regulations of the Republic of China (Taiwan), regarding different income sources and economic activities. Includes an analysis of key elements such as tax base, tax rates, and deductions.
* **Why this works:** This is best if your content specifically deals with legal aspects and complex tax calculations.

**Which option to choose?**

The best option depends on the content you’re tagging. Consider:

* **Target Audience:** Who are you writing for? (general public, professionals, etc.)
* **Content Scope:** Does your content focus on the user benefits, the legal/technical aspects, or a general overview?
* **Keywords:** Ensure that your description includes relevant keywords that users might search for.

I recommend choosing the option that best reflects your post’s content and target audience. If you are unsure, start with a more general description (Option 1 or 2) and then adjust it as needed. Remember to use Traditional Chinese characters.