Here are a few options for a WordPress post tag description for “年所得 (nián suǒ dé)” – “Annual Income”, in Traditional Chinese, ranging from simple to slightly more descriptive:

**Option 1: Simple & Direct**

* **Description:** 每年您的總收入。 (Měi nián nín de zǒng shōurù.) – Your total annual income.

**Option 2: Slightly More Descriptive**

* **Description:** 標記與您每年收入相關的內容，包含薪資、投資收益等。 (Biāo jì yǔ nín měi nián shōurù xiāng guān de nèiróng, bāohán xīnzī, tóuzī shōuyì děng.) – Tags content related to your annual income, including salary, investment returns, etc.

**Option 3: Emphasizing Tax or Financial Planning**

* **Description:** 關於年所得的資訊，以及稅務、財務規劃等相關內容。 (Guānyú nián suǒ dé de zīxùn, yǐjí shuìwù, cáiwù guīhuà děng xiāngguān nèiróng.) – Information about annual income, and related content like taxes and financial planning.

**Option 4: Relevant to Finance & Economics** (Suitable if your site focuses on finance)

* **Description:** 解釋年所得，以及它在個人理財、經濟分析、稅務申報等方面的重要性和應用。 (Jiěshì nián suǒ dé, yǐjí tā zài gèrén lǐcái, jīngjì fēnxī, shuìwù shēnbào děng fāngmiàn de zhòngyào xìng hé yìngyòng.) – Explains annual income and its importance and application in personal finance, economic analysis, tax filing, etc.

**Choosing the Right Option:**

* Consider your target audience and the general tone of your blog.
* If your site is very formal, choose a more descriptive option.
* If you are just tagging basic posts, keep it simple.

Remember to choose the description that best fits the overall topic and feel of your blog and content!