Custom invoicing software for your business

Standard invoice generators are fine for simple needs. A custom build usually pays off when:

• You bill the same customers every month for subscriptions or retainers.
• Invoices should be created automatically from orders, stock or project data.
• Pricing varies by customer, contract or usage.
• Customers or resellers want a portal to view and download their invoices.
• You invoice on behalf of several companies or branches.

Instead of bending those rules to fit a generic tool, we build the rules into the software.

Many countries now require or encourage electronic invoices sent through approved networks or service providers. We don't act as an e-invoicing provider ourselves; we connect your invoicing software to the provider you already use, or help you choose one, through its API.

You create invoices in your own system, while sending, status tracking and archiving run automatically through the provider. Compliance stays with a specialist, and you keep control of your workflow. For businesses that trade with Turkey, we have hands-on experience integrating with the local e-invoice and e-archive providers authorised by the Turkish Revenue Administration.

The modules we build most often:

• Customer records with tax details and addresses
• Quotes that turn into invoices with one click once approved
• Recurring billing for subscriptions and retainers, sent automatically
• Multi-currency invoices with exchange-rate support
• Payment tracking and automatic reminders for overdue invoices
• Payment links so customers can pay by card
• VAT, withholding and discount calculations
• Revenue, collections and per-customer reports

Cost depends on which e-invoicing provider we integrate with, your recurring billing rules, the payment gateway and any stock or accounting integrations, plus reporting needs. We send a free quote tailored to you and suggest starting with the most important piece so the project fits your budget.

Core invoicing and payment tracking usually take 4–6 weeks. Adding e-invoicing, subscription management and a customer portal typically extends that to 6–10 weeks. We build with Next.js, React, TypeScript and Node.js, store data securely in Firebase or a relational database, and deploy on reliable infrastructure such as Vercel.

You work with a small senior team led by founder Habip Dayan and talk directly to the developer building your system. We've built payment and billing flows for our own software products, so we know every amount has to be right to the cent. We're based in Turkey and work with clients internationally.