本篇角度参考了公开来源主题：Substantial presence test | Internal Revenue Service。
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税务居民触发条件 往往比单纯申请资格更早影响决策，因为身份、居住天数、公司利润、银行账户和全球收入申报可能互相牵动。
客户应在申请前列出可能触发税务居民、CRS信息交换、公司利润归属和个人资产披露的问题，再决定是否进入正式方案。
网站内容只能作为问题清单和初步解释，具体税务结论需要结合个人居住记录、收入来源、公司结构和专业税务意见。
Why This Matters for Global Planning
CARLYON uses this site to turn broad immigration, company, banking, tax, property, education, and visa questions into structured planning content. As a 上海办公室-based team serving Chinese clients, the strongest content is source-aware, scenario-specific, and clear about what still requires individual review.