Inflation is the rate at which prices rise, which means each unit of money buys less over time. Your savings don't shrink numerically — their *purchasing power* shrinks, which is the loss you can't see in your account balance.
**The arithmetic**: if inflation is 6% and your savings account pays 3%, your real return is roughly −3%. You have more money and can buy less with it. At 6% inflation, prices roughly double in twelve years — so ₹1 lakh kept in cash for twelve years buys what ₹50,000 buys today.
**Why this matters most for long-term money**: over one year, the effect is barely noticeable. Over twenty or thirty years — the horizon for retirement savings — it's the dominant force. This is the core reason 'keeping it safe in the bank' is not actually safe for long-term goals: it's a slow, certain loss rather than an occasional, visible one.
**What tends to keep pace with or beat inflation:**
- **Equities** have historically delivered real returns above inflation over long periods — with substantial volatility along the way.
- **Property**, broadly, though with high costs and local variation.
- **Inflation-linked bonds**, where available, which adjust their payout with the index.
**What loses to inflation reliably**: cash under a mattress, current accounts, and low-interest savings accounts. Long-dated fixed-rate bonds also suffer when inflation rises unexpectedly.
**The practical implication for how you hold money:**
- **Short-term money** (emergency fund, anything needed within two or three years) should stay in cash or near-cash despite inflation. Losing a few percent of purchasing power is a fair price for certainty when you might need it next month.
- **Long-term money** should be invested, because over decades inflation is the larger risk than volatility.
**Two things that catch people out:**
1. **Your personal inflation rate differs from the headline number.** The published index is an average basket. If your spending is concentrated in categories rising faster than average — rent, education, healthcare — you're experiencing higher inflation than the reported figure.
2. **Salary increases that match inflation are not raises.** A 5% increase during 6% inflation is a real-terms pay cut. Worth keeping in mind during negotiations, where the relevant comparison is the inflation rate, not zero.