Mollie vs Square
Mollie is a European alternative to Square: same payments & finance use case, headquartered in Netherlands and governed by EU GDPR, while Square (Block) is based in the United States.
By the EU Alternatives team Last updated
Online and in-person payments for European SMEs: iDEAL, SEPA, cards, and recurring billing through one clean API.
- Jurisdiction
- EU / EEA
- Primary privacy law
- EU GDPR
- US CLOUD Act exposure
- No
- Open source
- No
- Free tier
- No
Card payments in minutes, with free POS software, a reader you can buy off the shelf and same-day onboarding that small merchants rarely find elsewhere. In-person cards cost 2.6% plus 15 cents, online 3.3% plus 30 cents, with no monthly software fee. Square belongs to Block, Inc., whose executive office is in Oakland, California.
- Jurisdiction
- United States
- GDPR by default
- Requires DPA + TIA
- US CLOUD Act exposure
- Yes
Mollie vs Square at a glance
| Mollie | Square | |
|---|---|---|
| Headquarters | Netherlands | United States |
| Data jurisdiction | EU / EEA | United States |
| Primary privacy law | EU GDPR | Requires DPA + transfer assessment |
| US CLOUD Act exposure | No | Yes |
| Best for | Teams that need payments & finance built for European data-protection requirements | Teams already invested in the Block ecosystem |
Choose Mollie if…
- You want a provider governed by a European privacy regime
- GDPR or public-sector data-protection requirements apply to you
- You'd rather back the European tech ecosystem
Stick with Square if…
- You depend on integrations only available in the Block ecosystem
- Your organisation has no EU data-residency constraints
- Migration costs outweigh the jurisdiction benefits for now
About Mollie
Mollie is a European payment service provider making it straightforward for businesses of every size to accept payments online and in person. It consolidates cards, SEPA transfers, iDEAL, PayPal, and dozens of local European methods behind a single clean API. Pricing is transparent and per-transaction, with no hidden fees.
Beyond standard checkout, Mollie supports subscription and recurring billing, payment links, embeddable invoicing, and Tap to Pay on iPhone. Over 250,000 businesses use Mollie's unified dashboard to manage transactions, reconcile accounting, and access embedded financing through Mollie Capital.
Key benefits:
- 30+ payment methods including iDEAL, SEPA, Bancontact, and international cards
- Recurring billing for subscriptions and usage-based charging
- Payment links and invoicing for quick, no-checkout payment collection
- Fraud prevention with acceptance optimisation built in
- Embedded financing through Mollie Capital for eligible merchants
- Unified dashboard for transactions, insights, and accounting reconciliation
Mollie is headquartered in Amsterdam, Netherlands, founded in 2004, and regulated as a licensed Payment Institution under Dutch and EU financial law. It operates under GDPR and stores data within EU infrastructure, giving European merchants full compliance without extra configuration.
Why choose Mollie over Square?
The decisive argument is data jurisdiction. Square is headquartered in the United States, which means personal data processed through it can be subject to non-EU legal regimes: the US CLOUD Act, FISA 702, or similar laws depending on the provider. After the 2020 Schrems II ruling, EU organisations must carry out a transfer impact assessment for every such data flow.
Mollie removes that overhead. As a Netherlands-based provider, it operates under EU GDPR, and data stays inside the EU/EEA by default. For regulated sectors such as health, public administration, and finance, that's not a nice-to-have but a requirement. For everyone else, it's concentration-risk insurance: you avoid depending on a single jurisdiction that can change the rules without warning.