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美国关税叠加计算器

免费美国关税叠加计算器:输入货值和 MFN 税率,勾选适用的 301 清单、232 钢铁铝、122 附加税,自动算出每层关税和总税额。税率默认 2026 年 10 月数据、可手动调整,结果仅供参考,正式报关请以报关行为准。

◈ Local Processing · Inputs Are Not Uploaded

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This workspace processes data in the current browser; input is not saved upon refresh.

Results workbench

Fill in the details, then click Generate Results.

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How to use 美国关税叠加计算器

  1. Enter 海关货值(美元) and adjust the options as needed.
  2. Run the tool and inspect its results, evidence and limitations.
  3. Copy or download the result, then verify it against the actual website, source data or business records.

Try a concrete example

MFN + 301 + 232 + 122,一层一层算清楚。

How to interpret results

默认税率截至 2026 年 10 月;IEEPA 关税已失效,不在本工具内。正式报关请以报关行为准。

Frequently asked questions

301、232、122 关税是什么关系?能叠加吗?

三者依据不同法律,可以叠加在同一票货上:301 针对中国特定清单商品,232 针对全球钢铁铝及衍生品,122 是 2026 年 2 月起的临时附加税(最长 150 天)。本工具把每层单独列出再加总。注意 2026 年 7 月的 301 强迫劳动附加税(12.5%)与 232 有互斥条款,具体适用请让报关行书面确认。

IEEPA 的对等关税和芬太尼关税呢?

不在本工具内。2026 年 2 月 20 日美国最高法院裁定 IEEPA 无权征收关税,对等关税和芬太尼关税已失效,CBP 于 2 月 24 日停止征收。如果你之前的成本模型里还含 IEEPA,需要重算。

MFN 税率去哪里查?

用站内的「HS 编码查询(美国 HTS)」工具,输入商品英文名或编码,税则里的普通税率(General)列就是 MFN 税率。查到后填到本工具的 MFN 一栏。

怎么确定我的产品在 301 哪个清单?

301 按 HTS 编码锁定,USTR 公布了四个清单共约 3805 个税号。清单 4B(笔记本、手机等)目前暂停。最稳妥的是拿 HTS 编码去 USTR 清单文本里精确匹配,或让报关行出书面意见。

计算结果能直接用来报关吗?

不能。关税涉及归类、原产地、豁免清单等多重判断,税率也经常调整。本工具帮你快速估算成本结构、做报价决策,正式申报以持证报关行的计算为准。

我填的货值和税率会上传吗?

不会。全部计算在你的浏览器本地完成,页面不保存也不上传你输入的任何数据。

US Tariff Stack Calculator practical guide and common questions

What does an US Tariff Stack Calculator do?

Tariff stacking adds the MFN base rate to Section 301, 232 and 122 surcharges layer by layer for the true landed duty; each layer is independently editable.

Who is this for, and when is it useful?

Trade staff pricing US imports; use when quoting.

How do I use this US Tariff Stack Calculator?

Enter customs value and MFN rate, tick applicable Section 301/232 layers, adjust each rate, review the breakdown and effective rate.

How should I interpret the results?

Rates are October 2026 data and policy moves fast; IEEPA is void and excluded. Confirm with CBP notices and your broker before filing.

Where is the work performed, and which services receive data?

Tariff layering runs locally in your browser; entered values and rates are never uploaded.