Tax / VAT Calculator
Add or remove tax and VAT from an amount with a custom percentage rate.
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浏览器内运行这个工具能做什么
Add tax to a pre-tax amount or remove tax from a tax-inclusive total using a custom rate. Useful for VAT checks, receipts, quotes, and quick invoice math in the browser.
Use it when checking receipts, comparing quotes, or preparing a quick tax-inclusive estimate.
这个工具可以完成什么
Returns a 100 net amount and 20 tax before jurisdiction-specific rounding.
依赖结果前需要检查什么
- The tool does not determine taxability, jurisdiction, exemptions, filing treatment, or the legally required rate.
- Two-decimal display may differ from invoice-level rounding rules; this is not tax advice.
如何使用
- 1
Enter the amount and tax rate.
- 2
Choose whether to add tax or remove tax from the amount.
- 3
Review the tax amount and total or pre-tax value.
使用场景
Add a known tax rate to a net amount.
Recover the net amount and included tax from a gross value.
常见问题
When should I use Add Tax versus Remove Tax?
Use Add Tax when you have a pre-tax amount. Use Remove Tax when the amount already includes tax and you need the pre-tax value.
Does this know my local tax rate?
No. Enter the rate yourself because VAT and sales-tax rules vary by location, product type, and exemption.
Can I use this result as financial advice?
No. The result is an informational estimate based on the values you enter. Check the math, fees, taxes, and local rules before making financial decisions.
下一步常用工具
如果还需要校验、转换或复用结果，可以继续打开相近的浏览器本地工具。