🛠️ RealValue FX Engine Calculate your true effective FX rate including hidden spreads and taxes, compare quotes across banks to minimize costs, track your ₹10L LRS limit via a browser-only transaction log, and compute your TCS refund opportunity cost. 📅 Mar 15, 2026 🔧 FxTracker ⏱️ 7 min read International Investing Forex USD GST TCS Currency Exchange