A note on “AI”: in this area it mostly means automation, such as VAT-ID checks, invoice wording, and report generation. I flag where tools claim more.
Subtopic: the four obligations to map before you pick a tool
1. Income tax. Sources generally agree that a freelancer is taxed in their country of residence. The official Your Europe page adds a caveat: if you set up a fixed base or permanent establishment (an office or shop) in the country where you work, you may owe income tax there. Double tax treaties then decide whether the other country’s tax is credited or the income is exempt. Sources also say clients and platforms usually withhold nothing when you have no permanent establishment, though some countries differ.
2. Social security. Only one country’s system applies. For self-employed people working in several EU countries, sources describing Regulation 883/2004 give the same rule. If you do at least 25% of your activity in your country of residence, that country’s system covers all your work. Otherwise it’s the country where the substantial part of your activity takes place. If you work regularly in more than one country, an A1 certificate from your home social security authority documents which country covers you. One source says this applies when you work regularly, at least one day a month, in another country. Check it with your authority.
3. VAT on B2B work. For services to VAT-registered businesses in other EU countries, reverse charge applies: you invoice without VAT, show both VAT IDs and a reverse-charge note, and check the client’s VAT number in VIES. Sources add that you must also report it, in your VAT return and in an EC Sales List (recapitulative statement) filed monthly or quarterly depending on your country. One source warns of penalties for missing it even when no VAT is owed.
4. VAT on consumer sales. Digital services to consumers follow destination-country VAT, with OSS as the simplified filing route. See our OSS guide.
| Obligation | Who decides | Can software help? |
|---|---|---|
| Income tax residence and treaties | Tax authority and treaty | Records only, not decisions |
| Social security (A1) | Social security authority | No, apply directly |
| B2B reverse charge and EC Sales List | You, reporting to the tax authority | Yes |
| B2C VAT (OSS) | You, reporting to the tax authority | Yes |
The tools
Quaderno
Quaderno focuses on VAT: correct rates per country, location evidence, and OSS reports. One comparison says it can file OSS returns for you. See our OSS post for pricing and caveats.
Good for: Freelancers selling digital services to EU consumers.
Zoho Books and Xero
Both handle multi-currency accounting, and one source reports Zoho supports reverse-charge notes and VIES validation. Plan tiers and prices vary a lot between sources, so see our digital nomad accounting guide for details.
Good for: Freelancers with clients in several currencies.
Norman
Norman is Germany-focused and says it detects EU B2B clients from the VAT ID, adds the reverse-charge note, validates the counterparty VAT ID with the BZSt, and feeds your EC Sales List. That claim comes from Norman’s own blog, so verify it before relying on it.
Good for: German-based freelancers with EU B2B clients who want reverse-charge reporting automated.
Wise Business
Wise isn’t accounting software. By its own description, it holds and sends money in 40+ currencies and syncs with accounting tools.
Good for: Freelancers receiving payments in several currencies.
Quick comparison
| Tool | Covers | Doesn't cover | Notes |
|---|---|---|---|
| Quaderno | B2C VAT and OSS reports | Income tax, social security | Check pricing |
| Zoho Books / Xero | Multi-currency books, reverse-charge notes | OSS depth, residency | Plans vary |
| Norman | Reverse charge, EC Sales List (Germany) | Other countries | Vendor claims |
| Wise Business | Multi-currency banking | Accounting | Pair with accounting |
Prices and features change often, so confirm them on each provider’s site.
Which one should you choose?
- Mostly B2B clients: an accounting tool with VIES checks and reverse-charge notes, plus your country’s EC Sales List.
- Consumer digital sales: Quaderno or similar, plus OSS.
- Work in several EU countries regularly: ask your social security authority about an A1 certificate and your tax advisor about permanent establishment risk.
- Based in Germany: compare Norman with the tools in our German bookkeeping guide.
FAQ
Do I charge VAT to an EU business client?
Generally no. Reverse charge applies when the client has a valid VAT number, so verify it in VIES first.
Do I need an A1 certificate?
If you work regularly in more than one EU country, sources recommend applying to your home social security authority. Ask them, because rules differ.
Will my client withhold tax?
Usually not if you have no permanent establishment there, but some countries differ. Check treaty relief if tax is withheld.
Can one tool handle all of this?
No. Tools help with VAT and records. Residency, treaties, and social security need an advisor and the relevant authorities.
Sources: Your Europe: double taxation, CCSS Luxembourg: Article 13, GrensInfoPunten, Touring Artists, Lookuptax: recapitulative statement, Taxorio: foreign clients, Norman: EU B2B invoicing
Last updated: October 2026. This post is for informational purposes only and isn’t tax or legal advice. Rules differ by country, so consult a licensed tax advisor in your Member State.
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