EU Sovereignty Score
Self-hosted / open sourceERP & FinanceHeadquarters: CZ

Money S3: sovereignty score and 8 European alternatives

Money S3 is a Czech accounting program for businesses and sole traders. It covers double-entry bookkeeping, invoicing, cash register and tax records, payroll and personnel administration, a vehicle logbook and an address book. Connectors for online shops and an API are offered. The software is sold under licence and installed on the customer's own computers or on servers that the customer arranges.

Seyfor, a. s., the publisher of Money S3, has its registered seat in Brno, Czech Republic. Because the program runs on the customer's infrastructure, the customer decides where the accounting data is stored. Seyfor states that the backups it keeps for support are held on Microsoft Azure and do not leave the European Union. For a European organisation this makes Money S3 a self-hosted option, with one vendor-side copy to check against its own data policy: the support backups on Azure.

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Sovereignty score
80 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-2100
    Headquartered in the EU: European law applies
  • Data residency SOV-3100
    EU-only hosting
  • Cryptographic key sovereignty SOV-380
    Closed source, but self-hostable: encryption keys and runtime under your own control
  • Freedom from lock-in SOV-640
    Closed source: switching requires data migration
  • Source & runtime sovereignty SOV-4 · SOV-680
    Closed source, but self-hostable on your own infrastructure

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked October 12, 2026
Headquarters
CZ (EU)Verified by hand
Data hosting
Self-hosted, e.g. in EU (your choice)Verified by hand
Open-source
NoVerified by hand
GDPR-compliant
YesVendor-stated
Category
ERP & Finance
Type
Product
Website
money.cz ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Money S3

The European alternatives to Money S3 come from our knowledge base of over 8,000 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.

Score per alternative: 0 = high exposure, 100 = sovereign

176 European ERP & Finance vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

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Why digital sovereignty matters with Money S3

Money S3 is headquartered in CZ and therefore falls under European law: the GDPR, NIS2 and the Data Act. No foreign legislation can compel access to your data.

Money S3 runs on infrastructure you choose and control yourself. You decide where the data lives, including fully within the EU if you want — this is not a fixed hosting choice made by the vendor.

Money S3 is closed source, but you run the software yourself on your own infrastructure. The encryption keys and the runtime therefore stay under your own control, though you cannot audit or modify the source code. Ask about export options and open standards to limit software-level lock-in.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Money S3 together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to Money S3?

It depends on your use case. Strong EU alternatives to Money S3 include 24SevenOffice, A3ERP and Abacus. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Money S3?

Our list of EU alternatives to Money S3 is mostly commercial options. Browse the category on the map for open-source choices.

Is Money S3 GDPR-compliant and where is the data hosted?

Money S3 is headquartered in CZ (EU) and hosts data in EU. That makes Money S3 an EU-sovereign choice in its own right; the EU alternatives on this page are comparable European tools.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on October 12, 2026.

Sources

Public sources used in the latest check of this record.

Compliance evidence

The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".

No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction

Digital sovereignty in ERP & Finance

ERP & Finance: Enterprise resource planning, accounting, financial software. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.

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8 European alternatives to Money S3 — GDPR-compliant & EU-hosted · EU Sovereignty Score