Use this when the entered amount is the net price. The calculator adds tax to find the gross total.
Finance Utility
VAT Calculator
Calculate tax-exclusive totals or split a tax-inclusive amount into net amount and tax.
Tax-exclusive calculation
Treat the entered amount as the net amount and add VAT or sales tax.
Tax-inclusive calculation
Split the final price into net amount and tax.
Custom tax rate
Use common presets or enter the rate your region requires.
VAT Calculator
Ready
Tax details
Enter amount, tax rate and calculation basis. Results update instantly.
Result
Waiting
Calculation Result
Net amount
-
Tax
-
Gross total
-
Enter an amount to show a calculation summary.
Guide
Calculation Basis Guide
The result changes depending on whether your input is before tax or already includes tax.
Use this when the entered amount is the final price. The calculator separates net amount and tax.
VAT Calculator
Add a chosen VAT rate to a net amount or extract tax from a tax-inclusive total. Compare the net amount, tax and gross amount with transparent rounding.
Who this helps
- Users checking a quote’s tax arithmetic
- Readers separating tax from a paid total
When to use this tool
- Add tax
- Extract included tax
From input to a checked result
- 1
Choose tax-exclusive or tax-inclusive input.
- 2
Enter a whole amount from 0 to 1 trillion.
- 3
Set the applicable rate from 0 to 100%.
- 4
Calculate and review net, tax and gross values.
- 5
Record the result and check the invoice rounding policy.
Add tax
- Input
- Net 1,000; rate 10%
- Result
- Tax 100; gross 1,100
The entered amount is the tax-exclusive base.
Extract included tax
- Input
- Gross 110; rate 10%
- Result
- Net 100; tax 10
Divide by 1.1; do not simply deduct 10% of the gross.
How it works
Exclusive: tax = amount × rate/100, gross = amount + tax. Inclusive: net = amount / (1 + rate/100), tax = amount − net. Calculations retain fractional values but display each amount rounded to a whole currency unit.
Limitations
- The chosen rate is an assumption, not automatic jurisdiction or transaction classification.
- Exemptions, reduced regimes, input-tax credits and filing rules are not assessed.
- Whole-unit rounding may differ from invoices using cents or truncation.
- Negative values, decimals and amounts above 1 trillion are rejected instead of silently rewritten.
Your data
Amounts and rates are processed in the browser without tool storage or uploads.
References
Related tools
- Discount and Final Price Calculator
Estimate the checkout total from a sale percentage, fixed discount, coupon, points, shipping and an optional tax rate. Use whole currency units and compare the breakdown with the seller's checkout.
- Percentage calculator
Calculate a percentage of a value, a share, percentage change, increases, decreases and the original whole. Review and copy both the result and its formula.
Frequently asked questions
Is 10% appropriate everywhere?
No. It is a useful example and Korea’s general VAT rate, but the applicable rate depends on the transaction and jurisdiction.
Why do rounded parts sometimes differ from the total?
Net and tax are rounded separately for display. Check the original invoice and its rounding method.
Can I prepare a VAT return here?
No. This is a single-amount arithmetic calculator, not a filing or tax-credit system.