👋 Hi Product Hunt! I’m Samiul, and I built PortBill to solve a problem I’ve worked with firsthand: complex, tariff-based port billing. Port billing can involve cargo weight, tariff slabs, delivery dates, free-time rules, rate changes, VAT, levies, and multiple charge types. Handling these calculations manually can make billing repetitive, time-consuming, and prone to mistakes. PortBill turns those rules into structured software workflows. ### What PortBill currently handles • 🚗 Car wharf rent with slab-based tariff calculation • 📦 General cargo wharf rent and billing • 🔄 Re-export billing • 📊 Split billing across the 23 July 2024 tariff rate change • 🧮 VAT, levy and other applicable charges • 🧾 Print-ready invoice generation • 💾 Saved bills and billing records • ⚙️ Configurable tariff/rate management The core idea is simple: **Operational data → Tariff rules → Automated calculations → Ready-to-print bill** I built PortBill from real-world port operations experience, translating complex billing rules into software rather than relying on repeated manual calculations. I’d love feedback from people working in **ports, terminals, shipping, logistics, finance, or operational software**. **What is the most repetitive calculation or manual workflow you would like to turn into software?**

PortBill

Simplify complex port billing with automated calculations

Simplify complex port billing with automated calculations