₹1 lakh sitting in a savings account earning 3% interest, while inflation runs at 6%, isn't standing still — it's losing purchasing power every single year, even though the number in your account keeps going up.
The concept of "real return"
Your real return is your nominal return minus inflation. If your savings account pays 3% and inflation is running at 6%, your real return is actually -3% — meaning what that money can buy is shrinking each year, even as the rupee figure grows. This is the core reason financial planners push back against keeping large sums in low-interest instruments for long periods.
Why this matters more over long horizons
Over a single year, this effect is barely noticeable. Over 15-20 years, it compounds into something significant — money that feels like "a lot" today buys meaningfully less by the time you actually need it for a long-term goal like retirement or a child's education, if it isn't growing at least in line with inflation.
What this means practically for different money
- Emergency fund (3-6 months of expenses): keeping this in a low-risk, liquid option makes sense despite inflation erosion — the point is accessibility and safety, not growth
- Money for a goal 5+ years away: should generally be earning a return that at least matches, and ideally exceeds, inflation — otherwise you're guaranteed to fall short of your target in real terms
- Long-term wealth building: needs a real (inflation-beating) return to actually grow purchasing power over decades, which is the core argument for equity exposure over purely fixed-income options for long horizons
Why your salary raise might not feel like progress
If your annual salary increment is 5% while inflation runs at 6-7%, your real income is actually shrinking even though the number on your payslip is growing — a common source of the feeling that "I'm earning more but somehow not getting ahead," which is a real, measurable effect, not just a perception.