Here are a few options for a description for a WordPress post tag titled “GST” (增值稅 in Traditional Chinese), ranging from shorter and simpler to more detailed:

**Option 1: Short & Simple**

* **Description:** 增值稅 (Zēngzhíshuì) – 商品及服務稅。
* **Translation:** GST (Goods and Services Tax).

**Option 2: Slightly More Descriptive**

* **Description:** 增值稅 (Zēngzhíshuì) – 商品及服務稅，為一種消費稅，在商品或服務的每個環節所增值的價值上徵收。
* **Translation:** GST (Zengzhishui) – Goods and Services Tax, a consumption tax levied on the added value at each stage of the production or service process.

**Option 3: Focused on Relevance (Assuming a Business/Financial Context)**

* **Description:** 增值稅 (Zēngzhíshuì) – 香港及其他地區的商品及服務稅相關資訊、法規與計算方法。適用於企業及個人。
* **Translation:** GST (Zengzhishui) – Information, regulations, and calculation methods related to Goods and Services Tax in Hong Kong and other regions. Applicable to businesses and individuals.

**Option 4: Broader and Welcoming**

* **Description:** 有關增值稅 (Zēngzhíshuì) 的討論、新聞、資源與攻略。包含商品及服務稅的基本概念、相關法規變動及實用技巧。 歡迎所有對增值稅感興趣的人士!
* **Translation:** Discussions, news, resources, and guides related to GST (Zengzhishui). Includes basic concepts of Goods and Services Tax, changes in relevant regulations, and practical tips. Welcome to all interested in GST!

**Key Considerations when choosing:**

* **Your Target Audience:** Who are you writing for? A general audience, businesses, or tax professionals?
* **The Context of Your Website:** Is it a business blog, news website, or a tax-focused resource?
* **Purpose of the Tag:** What kind of posts will be tagged with “GST”?
* **SEO:** Consider including relevant keywords (like “增值稅,” “商品及服務稅,” and potentially location-specific terms if applicable).

Choose the description that best fits your needs and the overall theme of your website. Don’t forget to add it in the tag section within your WordPress post editing area. You may need to go to the “tags” section in your WordPress back-end and modify the existing “GST” tag entry.