Tax Calculator
Calculate tax amount and total using a simple percentage rate, or reverse-calculate the pre-tax amount from a tax-inclusive total.
Tax Calculator tool
| Metric | Value |
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Add-tax mode: total = amount × (1 + rate). Extract mode: pre-tax = total ÷ (1 + rate).
Informational only. This is a simple percentage tax calculator and does not replace official tax rules or filing calculations.
In Add tax mode, the calculator applies a tax percentage to a base amount and shows the tax amount plus final total.
In Extract pre-tax mode, the calculator starts from a tax-inclusive total and works backward to estimate the original pre-tax amount and the tax portion.
Examples
- $100 with 10% tax → $10 tax, $110 total
- $110 tax-inclusive total at 10% → $100 pre-tax and $10 tax
- Useful for sales tax, VAT-style examples, and simple tax planning
FAQ
- What does this tax calculator do?
It calculates tax amount, after-tax total, and pre-tax amount using a simple percentage-based tax model.
- Can I calculate both tax added and tax removed?
Yes. You can choose whether tax is added to a base amount or removed from a tax-inclusive total.
- Is this a full tax filing calculator?
No. This is a simple rate-based calculator. It does not handle brackets, exemptions, deductions, or local filing rules.
- Can I use this for sales tax or VAT-style calculations?
Yes. It works for many simple percentage tax cases, including sales tax or VAT-style calculations.
- Are my amounts stored?
No. All calculations run locally in your browser and are not stored or transmitted.