增值税与消费税正反向核算器
价税分离 • 含税价转不含税价 • 税额独立拆分
🧾 增值税与消费税核算器
税额
$20.00
税后金额 (含税)
$120.00
🛡️ 100% 浏览器本地离线隐私保护
所有财务与换算计算全部在您本地浏览器 JavaScript 引擎中执行，绝不向任何云端服务器发送财务隐私数据。
⚡ 零网络延迟即时反馈
基于浏览器原生高性能浮点计算，输入数值瞬间呈现结果，无加载等待。
数学算法模型与常见问题
How do I reverse calculate tax from a gross total?
Net Amount = Gross / (1 + Tax Rate / 100), and Tax Due = Gross - Net.
What is the standard formula for forward sales tax?
Gross = Net * (1 + Tax Rate / 100), and Tax Due = Net * (Tax Rate / 100).
Can custom tax rates be entered?
Yes, any percentage (e.g. 7.5%, 19%, 20%, 21%) can be entered with instant computation.