Financial Literacy, Generation Z, Compound Interest, Emergency Funds, FinTech Paradox, Indian Retail Markets, Behavioural Finance, The period between 2020 and 2026 has seen an unparalleled structural transformation in India’s retail financial ecosystem. Triggered by the COVID-19 pandemic, smartphone penetration, and the omnipresence of Unified Payments Interface (UPI) systems, millions of young Indians have bypassed traditional banking steps to jump straight into active trading. However, this rapid financial democratization has occurred without a corresponding rise in structural financial literacy. While Gen Z represents nearly 43% of India's consumer spending, they are increasingly exposed to highly aggressive fintech platforms, instant microlending apps, and social-media-driven investment hypes ("finfluencers"). This study establishes an empirical baseline of how well young Indians comprehend the compounding of wealth and the structuring of emergency reserves to survive modern macroeconomic volatility. This study examines the structural evolution of financial literacy and subsequent behavioural outcomes among Indian Generation Z (born 1997–2012) against the backdrop of rapid fintech penetration and macroeconomic shifts between 2020 and 2026. Utilizing a mixedmethods research design, we synthesize secondary macroeconomic data from the Reserve Bank of India (RBI), the Securities and Exchange Board of India (SEBI), and credit bureaus with primary empirical data collected via a purposive, cross-sectional digital survey (N = 400) targeting young professionals and students across Tier-1 and Tier-2 Indian cities. Focusing on compound interest and emergency funds, it analyses how macro shifts—such as postpandemic retail market surges, the expansion of instant digital credit, and shifting inflation dynamics—impact youth financial resilience.