Inflation and real returns: why 7% is not really 7%

What inflation is

Inflation is the general rise in prices over time. In India it is most commonly tracked through the Consumer Price Index (CPI), which follows the prices of a basket of everyday goods and services such as food, fuel, housing, clothing, education and healthcare. The RBI aims to keep CPI inflation within a target band, and changes in its policy rate, the repo rate, are one of the main tools it uses to do that.

Your personal inflation can differ from the official number. A family with school-going children, or a retired couple with high medical costs, may see prices rise faster than the average basket suggests.

Nominal return vs real return

The nominal return is the rate you are quoted, such as an FD rate. The real return is roughly the nominal return minus inflation. It is the true measure of whether your money is growing in buying power.

Using example figures: a 7% FD in a year of 6% inflation gives a real return of about 1%. A savings account at 3% in the same year gives about minus 3%: the balance goes up, but it buys less than it did a year ago.

Do not forget tax

Interest from savings accounts and fixed deposits is added to your income and taxed at your slab rate. That shrinks the return before inflation even comes in. Continuing the example, someone in the 30% bracket earning 7% on an FD keeps about 4.9% after tax; with 6% inflation, the real return is about minus 1.1%.

So the honest question is not "what rate does this pay?" but "what is left after tax and inflation?" For many people in higher tax slabs, money in deposits only holds its value or slowly loses it, even though it never looks smaller on paper.

What inflation does over time

Inflation compounds just like interest does, which is why it is easy to underestimate. At 6% a year, prices roughly double in about 12 years. Something that costs ₹1,00,000 today would cost around ₹1,79,000 in 10 years and around ₹3,21,000 in 20. A retirement plan or a child's education fund that ignores this ends up far short of what it will actually need.

How inflation and interest rates move together

When inflation runs high, the RBI tends to raise the repo rate to cool demand. Banks then raise loan rates and, usually with a lag, deposit rates. When inflation eases, the cycle reverses. This is why FD rates in India move in waves over the years rather than staying fixed.

It also means that a high FD rate is not automatically a good real return. If rates are high because inflation is high, the real return can be modest or negative. Comparing the FD rate with recent inflation tells you far more than the rate alone.

What it means for a pension or fixed income

Inflation hits hardest when income is fixed. A retired person drawing ₹30,000 a month from deposit interest or a pension that does not rise will find that, at an illustrative 6% inflation, the same ₹30,000 buys only about what ₹16,700 buys today after 10 years. The amount in the bank looks the same; the life it pays for has shrunk by almost half.

This is why retirement planning needs income that can grow over time, or a corpus large enough to keep drawing a bit more each year. A fixed monthly payout that feels comfortable at 60 can feel tight by 70.

A worked goal: planning in future rupees

Say a college course costs ₹10 lakh today and your child will start in 12 years. If education costs rise at an illustrative 8% a year, the same course would cost roughly ₹25 lakh by then. A plan that aims for ₹10 lakh will fall far short. Start from the future cost, then work out how much to save each month and where to keep it.

Education and healthcare costs in India have often risen faster than general inflation, so long-term plans for them deserve a more cautious inflation assumption than everyday expenses.

Lifestyle inflation: the kind you control

Prices are not the only thing that rises. As incomes grow, spending tends to rise with them: a bigger flat, a newer phone, more meals out. None of it is wrong, but if spending grows as fast as income, savings never grow at all. A simple guard is to send at least half of every raise straight to savings before you get used to spending it.

Quick answers

Is a savings account a bad place for money? Not for money you need soon or for your emergency fund, where access and safety matter most. It is a poor home for long-term savings, because its real return is usually negative.

Do all prices rise at the same rate? No. Food prices swing with the season and the monsoon, fuel follows global prices, and education and healthcare have often risen faster than the average. Your own inflation depends on what you buy.

Does deflation ever happen? Prolonged falling prices are rare in India. Individual items, such as electronics, do get cheaper over time, but the overall price level has generally risen year after year.

How often should I check my real return? Once a year is enough for most people, or whenever interest rates or inflation change noticeably.

What to do about it

You cannot avoid inflation, but you can plan around it.

• Match the option to the time frame. Safe, liquid options such as savings accounts and FDs are right for money you need soon, even if their real return is close to zero.
• For goals ten or more years away, consider options that have historically had a better chance of beating inflation over long periods, such as equity mutual funds, accepting that their value moves up and down along the way.
• Use tax-efficient routes where they suit you, for example PPF for long-term safe savings.
• Plan goals in future rupees, not today's: inflate the target cost before working out how much to save.
• Review your plan when inflation or interest rates shift noticeably.

The bottom line

A safe-looking return can still be a shrinking one. Judge every option by its real return after tax, keep money you need soon in safe places regardless, and give long-term money a fair chance to outgrow rising prices. This is general information, not personal financial advice.