Adyen is the payment platform of choice for large enterprises — it processes payments for Microsoft, eBay, Spotify, McDonald's, and hundreds of other global companies. Unlike Stripe or Square, Adyen targets mid-market and enterprise merchants, offering direct access to card scheme rates (interchange++), a unified commerce platform, and payment method coverage that's unmatched in depth.
For B2B businesses with significant invoice volumes, Adyen's interchange++ pricing model can meaningfully reduce processing costs compared to flat-rate processors.
Why enterprise businesses choose Adyen for invoicing
Interchange++ pricing
Rather than paying a flat percentage, Adyen charges the actual interchange rate set by the card scheme (Visa/Mastercard) plus a small processing markup. For B2B cards, which typically carry lower interchange rates than consumer cards, this can result in total processing costs of 0.8–1.5% — significantly less than Stripe's or PayPal's flat rates.
Global payment method coverage
Adyen supports 250+ payment methods natively — including iDEAL (Netherlands), Bancontact (Belgium), BLIK (Poland), Alipay, WeChat Pay, and regional bank transfers across Europe, Asia, and Latin America. For businesses invoicing clients in multiple countries, this removes the friction of "we can't pay by card" from international B2B transactions.
Unified platform
Adyen handles online, in-person, and in-app payments through a single integration. If your business has physical locations as well as invoice-based billing, Adyen unifies all payment data on one platform.
Connecting Adyen to TallyArc
- In your Adyen Customer Area, create a new API credential under Developers → API credentials
- Generate an API key and note your Merchant Account name
- Add
https://yourdomain.com/payments/adyen/webhookas a webhook endpoint in Adyen's notification settings - In TallyArc, go to Settings → Payment Providers → Adyen
- Enter your API Key and Merchant Account, set environment to live, and save
When Adyen is the right choice
Adyen makes sense when:
- You process more than $1M/year in card payments — at this volume, interchange++ savings are substantial
- You invoice clients in multiple countries and need broad local payment method support
- You have enterprise clients who require specific compliance certifications (Adyen is PCI DSS Level 1)
- You need a single payment infrastructure across online, in-person, and mobile channels
For smaller businesses, Adyen's minimum volume requirements and more complex onboarding make Stripe or Square more practical starting points.