T = 数量 × 单位税额

Specific Duty Calculator

Compute specific duty: T = quantity × unit duty amount.

📐 计算公式
从量税(本页代码口径):应纳税额 T=应税数量×单位税额(元);联动量:万元=T÷10⁴、月均=T÷12(元)、年化=T×12(元)、单位税额与数量之比=单位税额÷max(数量,10⁻⁹)。校验:无强校验,空值按 0 兜底。判据:无固定分级,税额与应税数量线性相关,年化口径仅在数量按月稳定时适用。

输入应税数量与单位税额,求从量税。

📅 Tax rules snapshot as of Oct 2026 (current PRC tax rules); after any reform, defer to the latest official announcements.

Formula & Standard References

Item Formula / Rule Source / Standard
Specific basis Duty = dutiable quantity × unit amount PRC Interim Regulations on Consumption Tax, Art. 5
Measurement basis Quantities are converted to statutory units such as litres, kilograms or sticks; refined oil uses litres PRC Interim Regulations on Consumption Tax, Annex
Combined with ad valorem Compound duty = quantity × unit amount + sales × ad valorem rate PRC Interim Regulations on Consumption Tax, Art. 5
📌 计算说明
  • 从量税按数量固定额度征收。
  • 100 件×5 元 → 500 元。

📚 深度解析:从量税(按数量定额)

💡 常见使用场景

数量 100、单位税额 5
从量税 T = 100 × 5 = 500 元;数量翻倍到 200 则税为 1000 元。
与从价对比
若同批货值 1 万、从价 10%,则从价税 1000 元、从量 500 元,低价品从量更轻。

❓ 常见问题(FAQ)

从量税的优点?
税额稳定、征管简单,且对低价劣质品相对加重负担,利于质量升级。
单位税额按什么计?
按税法规定的计量单位(吨、升、支等)定额,与商品标价无关。