TaxIN is an innovative educational tool that transforms the learning of Taxation and Insurance in Form Five Mathematics into an engaging and practical experience. By integrating gamification with infographic-based design, it simplifies complex financial concepts and connects abstract calculations to real-life contexts. Through structured repetitive gameplay, students strengthen retention, deepen understanding, and enhance problem-solving skills. TaxIN increases motivation while developing essential financial literacy aligned with TVET competencies. Supporting SDG 4 and SDG 8, the innovation promotes responsible economic participation. Its scalable, cost-effective design and strong intellectual property value position TaxIN as a sustainable solution for modern mathematics education.