企业所得税计算器

Corporate Income Tax Calculator

Compute corporate income tax: T = taxable income × corporate rate.

📐 计算公式
企业所得税(单一比例税率、无累进档):应纳税额 = 应纳税所得额 × (税率r ÷ 100);税后利润 = 应纳税所得额 × (1 − r÷100);利润÷税额倍数 = 应纳税所得额 ÷ (税额 或 1)。校验:无强校验,非数输入按 0 兜底。判据:无固定分级,税额与税率线性联动,税后利润与税额之和恒等于应纳税所得额。

由应纳税所得额与适用税率求企业所得税。

📅 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
Standard rate Tax = taxable income × 25%, reduced to 15% for qualified high-tech enterprises Enterprise Income Tax Law of the PRC, Art. 4 and Art. 28
Taxable income Gross revenue minus non-taxable and exempt income, deductions and carry-forward losses Enterprise Income Tax Law of the PRC, Art. 5
Loss carry-forward Losses carry forward five years, extended to ten for high-tech and tech SME firms Enterprise Income Tax Law of the PRC, Art. 18
📌 计算说明
  • 100 万、25% → 税额 25 万。
  • 小型微利企业有优惠税率。

📚 深度解析:企业所得税

💡 常见使用场景

利润 100 万、税率 25%
企业所得税 = 1,000,000 × 0.25 = 250,000 元;税后利润 = 750,000 元。
优惠税率 15%
若符合高新企业优惠(15%),税 = 150,000 元,税后利润 850,000 元,比 25% 多留 10 万。

❓ 常见问题(FAQ)

应纳税所得额等于会计利润吗?
不一定,需按税法做纳税调整(如业务招待费限额、加计扣除等),两者常存在差异。
小微企业有何优惠?
符合条件的小微企业通常适用更低的实际税负或分段优惠,应以当年政策为准。