Mollie vs Square
Mollie is a European alternative to Square: same payments & finance use case, headquartered in Netherlands and operating under GDPR by default, while Square 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
- GDPR by default
- Yes
- US CLOUD Act exposure
- No
- Open source
- No
- Free tier
- No
Square, a non-EU product.
- Jurisdiction
- US
- GDPR by default
- Requires DPA + TIA
- US CLOUD Act exposure
- Yes
Mollie vs Square at a glance
| Mollie | Square | |
|---|---|---|
| Headquarters | Netherlands | US |
| Data jurisdiction | EU / EEA | US law applies |
| GDPR by default | Yes | Requires DPA + transfer assessment |
| US CLOUD Act exposure | No | Yes |
| Open source | No | — |
| Free tier | No | — |
| Best for | Teams that need payments & finance with EU data residency | Teams already invested in the Square ecosystem |
Choose Mollie if…
- You want your data to stay under EU law without extra legal paperwork
- GDPR compliance or public-sector requirements apply to you
- You'd rather back the European tech ecosystem
Stick with Square if…
- You depend on integrations only available in the Square 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 US, 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 natively under 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 non-EU jurisdiction that can change the rules without warning.