Accept Online Payments (Stripe, GoCardless, PayPal, BACS)
Configure payment providers so clients can pay invoices online by card or Direct Debit.
Plenix lets your clients pay invoices online. You configure the providers with your own API keys so funds settle directly to your account.
Where to configure
Go to Accounting → Settings and open the payment providers section.
| Provider | Best for |
|---|---|
| Stripe | Card payments |
| GoCardless | Bank Direct Debit (recurring) |
| PayPal | PayPal balance / card |
| BACS | UK bank Direct Debit |
Connect a provider
- In the provider's own dashboard, create/copy your API keys (and webhook secret where offered).
- Paste them into the matching fields in Accounting → Settings.
- Save. A Pay Now option now appears on invoices you send.
How clients pay
When a client opens an invoice (or the client portal), they see a Pay button. After a successful payment they land on a confirmation page, and the invoice is marked paid automatically once the provider's webhook confirms the funds. Inbound payment webhooks are de-duplicated, so a payment is never double-counted.
Where to go next
- Understand the whole module → Integrations Overview — What You Can Connect
- Next in this module → Set Up Single Sign-On (SAML 2.0 / OIDC)
- Use the REST API, Webhooks & API Keys
- Send Notifications to Slack, Teams, Discord or Google Chat
- See where this fits in the bigger picture → Start Here: What Plenix Is and How It Fits Together
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