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VAT Calculator | Reverse-Calculate Net, Gross, and 10% VAT
Calculate 10% VAT from net price or reverse-calculate it from gross total, with selectable whole-unit rounding for invoices and settlements.
Enter a non-negative whole-unit amount.
Uses a fixed 10% VAT rate. For gross-total calculations, net price is rounded first and VAT is the remaining amount so the total always matches.
VAT calculator for net-to-gross and gross-to-net checks
This free VAT calculator calculates VAT and gross total from a net price, or reverse-calculates net price and VAT from a VAT-inclusive gross total. Select round, floor, or ceil for whole-unit handling when checking invoices, quotes, and settlement amounts.
Supported modes
- Net-based: net price → VAT + gross total
- Gross-based: gross total → net price + VAT
- Whole-unit handling: round, floor, or ceil
- Copy results: copy a summary of net price, VAT, and gross total
How to use
1. Choose the calculation basis
Select net-based mode when you know the pre-tax amount, or gross-based mode when you know the VAT-inclusive total.
2. Enter the amount
Enter a whole number of zero or more. Results update automatically.
3. Choose rounding and review the result
Choose round, floor, or ceil to match your settlement policy, then review the net price, VAT, and gross total. In gross-based mode, the calculator handles the net price first and assigns the remaining difference to VAT so the entered total stays unchanged.
Typical use cases
- Invoice and quotation drafting
- Payment reconciliation
- Sharing clear tax breakdown with partners
Related tools
- Check the percentage itself: Percent Calculator
- Compare selling price and margin: Profit Margin Calculator
- Verify a discounted price: Discount Calculator
FAQ
What is the difference between net-based and gross-based calculation?
The starting amount is different. Confirm whether you are entering a pre-tax net price or a VAT-inclusive gross total.
Can I calculate a VAT rate other than 10%?
This page calculates only the fixed 10% rate commonly used for standard taxable transactions. Check the applicable tax rules and documents separately for zero-rated, exempt, or different-rate transactions.
How are fractional amounts handled?
Choose round, floor, or ceil to match your settlement policy. Before issuing an invoice or signing a contract, confirm the counterparty’s rounding rule and final amount.
Summary
Use the VAT calculator to split net price, VAT, and gross total quickly, compare whole-unit rounding methods, and reduce amount errors in invoices and settlements.