Reverse Sales Tax Calculator

What is a Reverse Sales Tax Calculator?

A Reverse Sales Tax Calculator helps you determine the original pre-tax price and the sales tax amount when you only know the total price.

Unlike a normal sales tax calculator (which adds tax to the base price), this tool works backwards to reveal:

• How much of your payment was product cost

• How much was the sales tax

This is especially useful for:

• Shoppers analyzing receipts

• Accountants preparing financial reports

• Business owners handling invoices

How to Calculate Reverse Sales Tax (Step-by-Step)

Find the total price and the sales tax percentage.

Convert the tax % into a decimal → divide by 100.

• Example: 7.25 ÷ 100 = 0.0725

• Add 1 to the tax rate → 1 + 0.0725 = 1.0725

• Divide the total price by this factor.

• Example: $858 ÷ 1.0725 = $800 (pre-tax price)

• Multiply the pre-tax price × tax rate to find the tax amount.

• Example: $800 × 0.0725 = $58

✅ Final Result: Pre-Tax Price = $800, Tax Paid = $58

Reverse Sales Tax Formulas

• Sales Tax Rate (decimal) = Tax % ÷ 100

• Price Before Tax = Total Price ÷ (1 + Tax Rate)

• Sales Tax Amount = Price Before Tax × Tax Rate

🌎 These formulas work in any country worldwide — just adjust the local tax rate.

Supported Countries & Locations

Our Reverse Sales Tax Calculator works globally, supporting:

• 🇺🇸 USA → State sales taxes (NJ, NY, TX, CA, etc.)

• 🇨🇦 Canada → HST, PST, GST (Ontario, Quebec, BC, Alberta)

• 🇬🇧 United Kingdom → VAT (20%)

• 🇪🇺 European Union → VAT (ranges 17%–27% depending on country)

• 🇮🇳 India → GST (0%–28% depending on category)

• 🇯🇵 Japan → Consumption Tax (10%)

• 🇦🇺 Australia → GST (10%)

• 🇸🇬 Singapore → GST (9%)

• 🌍 …and more covering all continents.

State, Province & Country Examples

• 🇺🇸 New Jersey (USA) → 6.625% sales tax → $106.63 total = $100 net + $6.63 tax

• 🇺🇸 Texas (USA) → 6.25% base rate (adjustable with locals)

• 🇨🇦 Ontario (Canada) → 13% HST → $113 total = $100 net + $13 tax

• 🇨🇦 Quebec (Canada) → 9.975% QST + GST → handled instantly

• 🇬🇧 UK → 20% VAT → £120 total = £100 net + £20 VAT

• 🇩🇪 Germany (EU) → 19% VAT → €119 total = €100 net + €19 tax

• 🇮🇳 India → 18% GST → ₹118 total = ₹100 net + ₹18 tax

• 🇯🇵 Japan → 10% Consumption Tax → ¥1100 total = ¥1000 net + ¥100 tax

• …and more covering all continents.

Why Use This Reverse Sales Tax Calculator?

✅ Fast & accurate – get results instantly

✅ Works worldwide – supports global VAT, GST, PST, HST

✅ 20 major currencies supported

✅ Mobile-friendly, easy to use

✅ Perfect for accountants, businesses, and shoppers

🔹 Frequently Asked Questions (FAQ)

Q1: What is a reverse sales tax calculator used for?
It helps find the pre-tax price and tax amount when only the total price is known.

Q2: Does this calculator work worldwide?
Yes – it supports the USA, Canada, UK, EU, Asia, Middle East, Australia, and more.

Q3: Which currencies are supported?
All major currencies worldwide (USD, EUR, GBP, CAD, AUD, INR, JPY, CNY, SAR, AED, and more).

Q4: How do I calculate reverse sales tax manually?
Use the formula:

• Pre-Tax Price = Total ÷ (1 + Tax Rate as Decimal)

• Tax Amount = Pre-Tax Price × Tax Rate