In this article
The key points in 30 seconds
- Adding VAT: gross price = net × (1 + rate).
- Removing it: net = gross ÷ (1 + rate), not gross × rate.
- VAT is not your revenue, so calculate margins and profit on the net price.
- Rates differ by country and product type, so always check the official rate.
Many countries apply value added tax (VAT) to goods and services, and online store owners deal with it every day: in pricing, invoices and profit calculations. The math is simple, but mistakes are common and costly. In this article we apply each formula to a worked example.
What is VAT?
It is an indirect tax paid by the final consumer as part of the product price. The seller collects it and pays it to the tax authority after deducting the VAT they paid on their own taxable purchases. In other words, the seller is an intermediary collecting the tax; it is not part of their revenue.
Adding VAT to a price
Example 1: a product priced 200 before tax, at a 15% rate
- VAT amount = 200 × 0.15 = 30
- Price including VAT = 200 × 1.15 = 230
Removing VAT from a gross price
This is where the most common mistake happens.
Example 2: a gross price of 230 at 15%
- Net price = 230 ÷ 1.15 = 200
- VAT amount = 230 − 200 = 30
Multiplying 230 by 15% directly gives 34.5, which is 4.5 more than the real tax. On one invoice the difference looks small, but on monthly sales of 50,000 the error reaches about 978 on your tax return.
Choose add or remove, enter your country’s official rate and get the net amount, VAT and total instantly.
Try the VAT calculator →VAT and profit margin: an example that shows the difference
Example 3: gross price 115, cost 60, rate 15%
- If you calculate the margin on the gross price: (115 − 60) ÷ 115 = 47.8% (wrong)
- Net price = 115 ÷ 1.15 = 100
- Correct margin: (100 − 60) ÷ 100 = 40%
The gap is almost 8 percentage points, enough to make the wrong pricing and advertising decisions. See also how to calculate profit margin accurately.
An invoice with three items
| Item | Qty | Unit price (net) | Net total | VAT 15% | Gross total |
|---|---|---|---|---|---|
| Printed coloring book | 2 | 40 | 80 | 12 | 92 |
| Box of colored pencils | 1 | 25 | 25 | 3.75 | 28.75 |
| Gift wrapping | 1 | 5 | 5 | 0.75 | 5.75 |
| Total | 110 | 16.50 | 126.50 |
Note that your actual revenue from this invoice is 110, not 126.50; the 16.50 is money you hold to pay to the tax authority.
Common mistakes in online stores
1. Counting VAT as revenue
If you sell 11,500 including 15% VAT, your real revenue is only 10,000. Treating the whole amount as revenue overstates your profit and may lead you to spend the tax money.
2. Unclear prices for customers
Consumer protection laws in many countries require prices to be shown including tax or clearly stated otherwise. A price that suddenly changes at checkout increases cart abandonment.
3. Mixing up rates between countries and products
The rate may vary by the buyer’s country and the product type, and reduced rates exist for some categories. Digital products in particular follow special rules in many countries, where tax is often charged based on the buyer’s country.
4. Ignoring what platforms collect on your behalf
In many cases platforms such as Etsy collect VAT from buyers in certain regions, such as the European Union and the United Kingdom, and pay it themselves. Check the tax reports in your account so you don’t count the same tax twice or treat amounts you never received as revenue.
A simple monthly system for VAT
- Keep a sheet that separates, for each month, net sales, VAT collected and VAT paid on purchases.
- File your purchase invoices carefully: the VAT paid on them may be deductible depending on your country’s rules.
- Move the VAT amount to a separate account as soon as you collect it.
- Review platform reports to see what they collected and paid on your behalf.
- Check with a qualified accountant before filing deadlines.
Frequently asked questions
How do I quickly remove VAT from any gross price?
Divide the gross price by (1 + rate) to get the net, then subtract it from the gross. Or use the calculator to avoid mistakes.
Should my prices include VAT?
It depends on your country’s laws and your customers. When selling to consumers, showing prices including VAT is usually preferable to avoid surprises at checkout.
Is this article tax advice?
No, it is general information. Laws and rates differ between countries and change over time, so consult an accountant or your tax authority.
Summary
Add VAT by multiplying and remove it by dividing, always calculate margins and revenue on the net price, and keep tax money separate from your own from day one. These simple rules protect you from costly pricing and filing mistakes.
