利息所得税计算器

Interest Income Tax Calculator

Compute tax on interest income: T = interest × rate.

📐 计算公式
利息所得税:税额 = 利息 × (税率% ÷ 100)(元,税率按百分数输入、内部转小数参与运算);联动量:税后利息 = 利息 × (1−税率÷100)(元)、利息/税额倍数 = 利息 ÷ ((利息×税率÷100)||1)(税额为 0 时分母按 1 兜底)。校验:无强校验,空值按 0 兜底。判据:无固定分级,税额与利息、税率均线性相关;例 利息 5000、20% → 税 1000 元。

由利息所得与适用税率计算代扣税。

📅 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
Computation Tax = interest × 20%, treated as interest, dividend and bonus income Individual Income Tax Law of the PRC, Art. 3
Exempt cases Savings deposit interest has been exempt since 9 October 2008, and treasury bond interest is exempt Individual Income Tax Law of the PRC, Art. 4
Withholding The paying institution withholds per payment, so no separate filing is needed Individual Income Tax Law of the PRC, Art. 9
📌 计算说明
  • 利息 5000、20% → 税 1000。
  • 部分国债利息免税。

📚 深度解析:利息所得税

💡 常见使用场景

利息 5000、税率 20%
利息所得税 = 5000 × 0.20 = 1,000 元;税后利息 = 5000 − 1000 = 4,000 元。
免税情形
若利息来自免税品种(税率 0),则所得税 0、税后利息全额 5000 元。

❓ 常见问题(FAQ)

哪些利息可能免税?
国债、地方债等特定品种利息常免征所得税,具体以现行税法为准。
税率用小数还是百分数?
r 输入百分数(如 20 代表 20%),内部按 0.20 计算。