Synapse handles your invoices, card payments, subscriptions, and refunds — all webhook-reconciled and Stripe-powered, so your revenue is always accurate.
Part of the Shuppa platform • Stripe-powered • PCI SAQ-A
Track collected revenue, outstanding invoices, active subscriptions, and refunds — all in one view.
| Customer | Invoice | Amount | Status | Date |
|---|---|---|---|---|
| Acme Retail Ltd | SYN-INV-00041 | €2,400.00 | Paid | 03 Apr 2026 |
| Murphy Consulting | SYN-INV-00040 | €890.00 | Sent | 01 Apr 2026 |
| Dunmore Foods | SYN-INV-00039 | €5,100.00 | Overdue | 15 Mar 2026 |
| O'Brien Tech | SYN-INV-00038 | €1,200.00 | Partial | 10 Mar 2026 |
Built on Stripe's infrastructure, designed for the way Irish SMEs actually bill clients.
Create branded invoices with multiple line items, VAT, and due dates. Send and track status from draft to paid automatically.
Customers pay directly on the invoice with a card. Apple Pay and Google Pay supported. 3DS2 & PSD2 SCA handled automatically.
Create recurring plans per customer — monthly, annual, or custom intervals. Track MRR and manage pauses and cancellations.
Issue full or partial refunds in one click. Stripe refunds fire automatically; your invoice balance adjusts in real time.
Every Stripe event is captured, deduplicated, and applied idempotently. No double-charging, no missed payments.
A branded receipt email is sent the moment a payment is confirmed — no manual chasing or copy-pasting required.
Each company gets its own Stripe keys, customers, invoices, and settings. Fully isolated multi-tenant from day one.
Filter by month, status, customer, or method. Export any view to CSV for reconciliation or reporting.
Every action — invoice creation, payment, refund, status change — is logged with user, timestamp, and IP. Nothing is silently changed.
Connect your Stripe account and start invoicing straight away.
Use your existing Shuppa account. No separate registration needed — Synapse is part of the platform.
Paste your Stripe publishable and secret keys in Settings. Test mode and live mode supported.
Create your first customer, build an invoice with line items, and send it. Synapse tracks the status automatically.
Customers pay by card. Webhooks confirm the payment, update the invoice, and fire a receipt — all without you touching anything.
One flat subscription — every feature included, no hidden fees.
Join Synapse and replace your manual invoicing with a real payment engine.
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