Overview
Mollie is a Dutch-headquartered payment-service provider (PSP) that operates across Europe. From your customer's point of view, Mollie is the checkout screen they see when they click a payment link from your invoice email — they pick iDEAL / card / PayPal / etc., authenticate with their bank or wallet, and the money lands in your Mollie account. From there it settles to your bank account on Mollie's settlement schedule (next-business-day for iDEAL, T+2 for card).
Why Mollie
For Dutch SMBs, three reasons:
- iDEAL is the must-have payment method. Over 70% of Dutch online B2C payments go through iDEAL. If you sell to consumers and your checkout doesn't support iDEAL, you lose conversions. Mollie is one of the cheaper and easier ways to add iDEAL.
- Transparent pricing. No monthly fee on the standard plan; just a per-transaction cost (around €0.29 for iDEAL, ~1.8% + €0.25 for European cards as of 2026 — check mollie.com for current rates).
- Simple integration surface. One API, one webhook endpoint, one dashboard. Compare to Stripe + a separate iDEAL provider + a separate Bancontact provider for the same coverage.
Supported methods
What works out of the box once you've enabled them in your Mollie profile:
- iDEAL — the Dutch real-time bank-payment standard.
- Credit / debit cards — Visa, Mastercard, American Express (depending on your acquiring agreement).
- Bancontact — Belgium's equivalent of iDEAL.
- SEPA Direct Debit — pull-based EUR payments from any SEPA account. Needs a signed mandate; see Subscriptions.
- Apple Pay / Google Pay — wallet-based card payments.
- PayPal — for international B2C orders.
- SOFORT / Klarna / Giropay / EPS / Multibanco — region-specific methods you enable per market.
Methods you actually accept are controlled in your Mollie dashboard, not in ERPNext. Mollie's checkout shows your customer only the methods you've enabled.
When to use Mollie vs SEPA batches
These are different workflows for different directions of money:
| Mollie | SEPA batches |
|---|---|
| Money coming IN from customers | Money going OUT to suppliers |
| Pull-based (customer initiates) or push (you initiate via mandate) | Push-based (you initiate) |
| Per-transaction fees | Free (your bank's standard SEPA cost) |
| Webhook-driven Payment Entries | XML file you upload to your bank |
| Use for: Sales Invoices, Web Shop | Use for: Purchase Invoices, payroll |
A typical Dutch SMB uses both: Mollie for customer payments, SEPA batches (from the erpnext_netherlands app) for supplier payments.
What this integration does NOT do
- Not a Mollie alternative. This is the Mollie integration; if you want to switch to Stripe or another PSP, you need a different app.
- Not a refund-arbitration tool. Refunds initiated here are one-way — they hit Mollie's API and Mollie credits the customer. Disputes / chargebacks happen entirely in Mollie's dashboard.
- Not a tax engine. VAT determination on the invoice happens in ERPNext; Mollie just charges the gross total.