EU Sovereignty Score
EU sovereignERP & FinanceHeadquarters: HU

Számlázz.hu: sovereignty score and 8 European alternatives

Számlázz.hu is an online invoicing and receipt service, offered in Hungarian, for issuing invoices, receipts and related accounting documents through a web browser. It is delivered as a cloud service, so users create, send and archive invoices without installing software. The service is operated by KBOSS.hu Kft., a Hungarian company with its registered seat in Budapest. The former domain kboss.hu now redirects to the Számlázz.hu site.

The sources consulted do not name an owner for KBOSS.hu Kft., so its ownership structure is not confirmed. The company's privacy notice states that customer data for the invoicing service is stored in the AWS Frankfurt region and that the infrastructure operates within the EU and/or EEA. Some sub-processors used for marketing and customer support, such as Mailchimp, Intercom and HubSpot, are US companies, and the notice relies on the EU-US Data Privacy Framework for those transfers. The software is not open source. For a European organisation, the main points to assess are these sub-processor transfers and the Hungarian-language contract terms.

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Sovereignty score
71 / 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-360
    Key management with a European vendor
  • Freedom from lock-in SOV-640
    Closed source: switching requires data migration
  • Source & runtime sovereignty SOV-4 · SOV-655
    Closed source, runtime with the vendor

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 10, 2026
Headquarters
HU (EU)Verified by hand
Sovereignty model
Vendor-hosted (EU)Verified by hand
Data hosting
EUVerified by hand
Open-source
NoVerified by hand
GDPR-compliant
YesVendor-stated
Category
ERP & Finance
Type
Product
Website
szamlazz.hu ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Számlázz.hu

The European alternatives to Számlázz.hu come from our knowledge base of over 7,800 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 Számlázz.hu

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

Data is hosted exclusively in the EU, so Számlázz.hu scores best on data residency.

Számlázz.hu is closed source and hosted by the vendor. The encryption keys and the runtime sit with the vendor and switching requires data migration. Ask about bring-your-own-key, export options and open standards.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Számlázz.hu 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 Számlázz.hu?

It depends on your use case. Strong EU alternatives to Számlázz.hu 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 Számlázz.hu?

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

Is Számlázz.hu GDPR-compliant and where is the data hosted?

Számlázz.hu is headquartered in HU (EU) and hosts data in EU. That makes Számlázz.hu 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 10, 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 Számlázz.hu — GDPR-compliant & EU-hosted · EU Sovereignty Score