Add / Remove VAT Calculator
Add VAT to a net price or extract VAT from a gross price — instant net ↔ gross with any VAT rate.
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Updated for 2026
Free VAT & tax calculators for Europe
Add or remove VAT in seconds — type an amount, enter any rate, and see the net, VAT and gross instantly. No signup, free forever.
Calculators
All 9 tools →
VAT tools
Pick your country. Every tool generates a correct invoice with the legal wording your tax authority expects.
Germany Reverse Charge VAT Calculator
0%-VAT invoices for intra-EU B2B and §13b UStG transactions, with the correct legal note.
Open calculator →France B2B Reverse Charge VAT Calculator
TVA autoliquidation invoices with VAT-number validation and art. 259-1 CGI wording.
Open calculator →Spain Reverse Charge VAT (IVA) Calculator
Inversión del sujeto pasivo — find out whether to charge IVA, reverse it, or exempt it.
Open calculator →Portugal Reverse Charge VAT Invoice Calculator
Autoliquidação vs 23% IVA decision tool with declaration obligations.
Open calculator →Sweden Reverse Charge VAT (Moms) Calculator
Omvänd skattskyldighet for intra-EU B2B and construction (byggmoms).
Open calculator →Spain Autónomo Invoice Calculator (IVA + IRPF)
Build facturas with the right IVA rate and IRPF retención (15%, 7% or 0%).
Open calculator →Portugal Recibo Verde Invoice Calculator
Green receipts with IVA and IRS withholding (retenção na fonte) done right.
Open calculator →UK VAT Calculator & Invoice
20%/5%/0% VAT rates with an HMRC-compliant VAT invoice generator.
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Learn
Latest guides
Plain-English explanations of the VAT rules behind the tools.
- 01What Is Reverse Charge VAT in the EU?The mechanism, explained simply — and when it applies to you.→
- 02Germany Reverse Charge VAT: §13b UStG ExplainedWhich transactions qualify and what your invoice must say.→
- 03France TVA Autoliquidation: A Practical GuideB2B rules, VAT numbers, and the 2026 e-invoicing mandate.→
- 04Spain's Inversión del Sujeto Pasivo ExplainedWhen the buyer — not you — accounts for the IVA.→
- 05How to Verify an EU VAT Number with VIESStep-by-step check before you issue a 0%-VAT invoice.→
- 06Portugal Reverse Charge VAT (Autoliquidação) GuideArt. 6 CIVA rules and your declaration duties.→
- 07Sweden's Omvänd Skattskyldighet ExplainedReverse charge for EU trade and construction services.→
- 08Spain Autónomo Invoices: IVA + IRPF GuideRetención rates and when 7% applies instead of 15%.→
- 09Portugal Recibo Verde Invoices: A Freelancer's GuideArt. 53 exemption, 25% withholding, and invoice wording.→
- 10Reverse Charge Invoice Wording ExamplesCopy-ready legal notes for DE, FR, ES, PT and SE invoices.→
Why VatVolt
Built for people who invoice across borders
No fluff, no paywalls — just tools that get the legal details right.
100% freeEvery calculator and guide is free, with no paywalls.
No signupUse the tools instantly — no account, no email required.
Updated September 2026Rates and rules checked against 2026 sources for each country.
Invoicing an EU client this week?
Generate a legally correct reverse-charge invoice in under a minute — free, no signup.
Try a calculatorFrequently asked questions
Is VatVolt free?
Yes. Every calculator and guide on VatVolt is free, with no signup and no limits.
Do I need an account or does VatVolt store my data?
No. There are no accounts. All calculations happen in your browser — nothing you type into a calculator is sent to our servers.
What is reverse charge VAT?
Reverse charge flips who pays the VAT: instead of the seller charging it, the buyer accounts for it in their own VAT return. It applies to cross-border B2B supplies in the EU where the customer has a valid VAT number. See our full guide.
Which countries do the tools cover?
Germany, France, Spain, Portugal, Sweden and the UK, plus a universal add/remove VAT calculator that works with any rate.
Are the invoices legally valid?
The tools generate invoices with the wording each country's tax authority expects (for example §13b UStG for Germany or "autoliquidation" for France). They are built to the legal requirements, but they are not professional tax advice — when in doubt, check with a qualified accountant.
How current are the rates?
Rates are checked against current sources and stamped with their last-update date on each tool page.
Can I print or save the invoices?
Yes — every invoice tool prints as a clean one-page A4 document you can save as PDF or print directly.