Here are a few options for the description of a WordPress post tag “business income tax” in Traditional Chinese, ranging from concise to slightly more descriptive:

**Option 1: Concise**

* **Traditional Chinese:** 商業所得稅
* **Pinyin:** Shāngyè suǒdé shuì
* **Translation:** Business Income Tax (same as title, good for search)

**Option 2: Slightly More Descriptive**

* **Traditional Chinese:** 討論有關公司、企業及其他商業實體的所得稅規範。
* **Pinyin:** Tǎolùn yǒuguān gōngsī, qǐyè jí qítā shāngyè shítǐ de suǒdé shuì guīfàn.
* **Translation:** Discussing regulations related to income tax for companies, businesses, and other commercial entities.

**Option 3: Focus on Taxpayer**

* **Traditional Chinese:** 針對商業活動所產生的收入應繳納的稅款。
* **Pinyin:** Zhēnduì shāngyè huódòng suǒ chǎnshēng de shōurù yīng jiǎonà de shuìkuǎn.
* **Translation:** Taxes payable on income generated from business activities.

**Option 4: Including Relevance**

* **Traditional Chinese:** 探討與商業所得稅相關的最新立法、申報流程、節稅策略及常見問題。
* **Pinyin:** Tàntǎo yǔ shāngyè suǒdé shuì xiāngguān de zuìxīn lìfǎ, shēnbào liúchéng, jiéshuì cèlüè jí chángjiàn wèntí.
* **Translation:** Exploring the latest legislation, filing procedures, tax saving strategies, and common issues related to business income tax.

**Choosing the Best Option:**

* **SEO (Search Engine Optimization):** Option 1 (Concise) is often best for the tag description itself as it includes the keyword clearly.
* **User Understanding:** Option 2 or 4 are better if you want to give the reader a quick overview of what the posts tagged with this will cover.
* **Practicality:** Keep it fairly short. WordPress will truncate descriptions if they get too long, so consider making sure it’s readable even when clipped.

Choose the option that best fits your site’s overall strategy and the types of posts you’ll be writing. Using the Pinyin is only helpful to you or other internal team members to cross-reference or ensure pronunciation accuracy.