Nigeria Lagos State Government want to implement single system which connects all tax collecting Merchants / Agents to make sure that they collect the 5% Consumption tax from Hotels / Resorts, Event Centers, etc. Objective of this project is that all agents have to comply to govt TAX System and they need to Integrate to the Central System for the compliance and Payments. Various Agents use different POS / Sales System and it is challenge to make a Interface that can handle seamless Integrations. Over 70000 Merchants are targeted in initial phase of the project in Lagos state itself with over 35 million invoice upload each month. The scope of work is to design and implement and manage a robust consumption tax application that will assist the Agency to monitor, manage and collect the right amount of consumption taxes through collecting agents in Lagos State.