Payment & Financial Systems
Secure, compliant payment processing and financial management systems for businesses of all sizes.
Handling money requires precision, security, and trust. At Porter Phillips, we build payment and financial systems that process transactions reliably, comply with regulatory requirements, and give your business complete visibility over its financial operations. From Selby, North Yorkshire, we help businesses across the UK implement everything from simple payment gateways to complex subscription billing platforms, invoice automation, and financial reporting dashboards. Every system we build prioritises security and compliance alongside functionality and user experience.
Payment Gateway Integration
We integrate leading payment providers including Stripe, PayPal, Square, and GoCardless into your applications and websites. Our integrations handle one-off payments, recurring subscriptions, direct debits, and multi-currency transactions. We implement Strong Customer Authentication (SCA) compliance, 3D Secure, and PCI DSS best practices to ensure every transaction is secure. Our webhook handling ensures payment events are processed reliably, with automatic retry logic and comprehensive logging so no transaction is ever lost.
Subscription and Recurring Billing
For SaaS businesses and subscription-based models, we build complete billing platforms that handle plan management, trial periods, upgrades, downgrades, prorated charges, and dunning management. We leverage Stripe Billing and custom .NET implementations to create flexible billing systems that support your pricing strategy as it evolves. Our solutions include customer portals for self-service subscription management, automated invoice generation, and integration with your accounting software.
Invoice Automation
Manual invoicing is time-consuming and error-prone. We build automated invoicing systems that generate, send, and track invoices without manual intervention. Our solutions integrate with accounting platforms like Xero and QuickBooks, automatically reconcile payments, and send reminders for overdue invoices. For businesses with complex invoicing requirements — multiple entities, variable pricing, or approval workflows — we build bespoke solutions that handle your specific needs whilst maintaining accuracy and audit trails.
Financial Reporting and Dashboards
Understanding your financial data is essential for good decision-making. We build real-time financial dashboards using Power BI and custom web applications that give you instant visibility into revenue, expenses, cash flow, and key financial metrics. Our dashboards pull data from multiple sources — payment processors, accounting software, banking APIs — and present it in clear, actionable visualisations. Automated report generation ensures stakeholders receive the information they need, when they need it.
Compliance and Security
Payment systems must comply with a range of regulatory requirements. We implement PCI DSS best practices, ensuring cardholder data is handled securely throughout the payment lifecycle. We use tokenisation to minimise your PCI scope, implement encryption for data at rest and in transit, and configure comprehensive audit logging. For businesses handling regulated financial data, we help navigate compliance requirements and implement appropriate technical controls.
Key Benefits
Secure payment processing with PCI DSS compliance
Flexible subscription billing for SaaS and recurring models
Automated invoicing with accounting software integration
Real-time financial dashboards and reporting
Multi-currency and international payment support
Strong Customer Authentication (SCA) compliance
Technologies We Use
Frequently Asked Questions
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