Updated: August 2026 • Verified v1.2

VAT & Sales Tax Reverse Calculator

Finance & MathCalculators

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Add Tax: Gross = Net * (1 + Rate/100); Reverse Tax: Net = Gross / (1 + Rate/100)
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Understanding Your Results

Calculates Net (exclusive), Tax Amount, and Gross (inclusive) totals with single-click operation toggles and country rate presets.

Practical Guidance & Next Steps

Use 'Remove / Reverse VAT' when you have a gross receipt of $120 (at 20% VAT) to extract the true pre-tax net amount ($100.00) and tax paid ($20.00).

What is this?

A bi-directional tax calculator that computes sales tax additions (Net to Gross) and reverse VAT deductions (Gross to Net).

How does it work?

1. Select 'Add Tax' (Net to Gross) or 'Remove / Reverse VAT' (Gross to Net). 2. Enter the amount and choose your tax rate (or click a country preset like 5%, 8.25%, 20%). 3. Instantly see Net Amount, Tax Amount, and Gross Amount.

Why use it?

Simplifies invoicing, bookkeeping, tax filing, and expense reconciliation without complex manual algebra.

Technical Scope & Calculation Limitations

Applies standard flat percentage tax calculations. Compound or multi-tiered local sales taxes must be entered as a combined rate.

Frequently Asked Questions

To extract pre-tax net price from a gross total, divide the gross amount by (1 + Tax Rate / 100). For example, $120 with 20% VAT = $120 / 1.20 = $100.00 Net, with $20.00 VAT.
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