Should You Lock a Long FD Before the RBI Meets?

Note: Rates and figures reflect data available as of 27 September 2026. The RBI's Monetary Policy Committee announces its decision on 7 October 2026. Verify current bank rates before you act on anything here.

For most of the last two years, FD advice in India has had one line: lock in long before rates fall.

That advice made sense while the RBI was cutting. It took the repo rate down to 5.25% in December 2025 and has held it there for four meetings since. The next decision is due on 7 October.

The conversation has flipped in the last three weeks. SBI Research, the economics desk of the country's largest bank, now expects the RBI to raise the repo rate: 25 basis points in October and another 25 in December. If they are right, the old advice runs backwards. A long FD booked this week would lock in a rate that is about to look low.

So I ran the numbers for a simple case: ₹10 lakh, five years, at SBI's own rates. Here is what they say.

This is educational and informational only. It is not financial advice. I am showing how the arithmetic behaves under different scenarios, not telling you what to do with your money. Talk to a SEBI-registered advisor for advice on your own situation.

Why the forecast flipped

Three things changed quickly.

Crude oil. The Indian crude basket went from $82 a barrel in July to $90 in August and about $110 in September, per SBI Research's note. India imports most of its oil, so an oil shock quickly turns into inflation at home.

Inflation is spreading. Retail inflation was 2.73% in January. It was 4.82% in August. The more worrying detail is how many things are getting pricier. In January, 22 items made up 90% of the inflation. By August, it took 51. When price rises spread that widely, central banks stop calling them temporary.

Bond yields. India's 10-year government bond yield has crossed 7%. Bond markets usually move before the RBI does, and they are pricing in tighter money.

SBI Research thinks retail inflation could go above 6.5% in October or November if oil stays high. The RBI's comfort band tops out at 6%. That is the core of the hike case.

Hike forecasts can be wrong, and I'll come back to that. But for the first time in this cycle, a major Indian bank's own research desk is forecasting a hike, not a cut.

The detail most FD advice skips

Before any forecasts, look at what SBI pays today. These are its current retail rates, effective 15 December 2025, for general (non-senior) depositors:

The best rate is at two to three years. The five-year FD pays 35 basis points less than the two-year one.

So a long FD at SBI doesn't pay you extra for locking your money away for longer. It pays you less. Long deposits usually earn more than short ones, because the bank gets to keep your money longer. When they earn less, the bank is telling you it expects rates to be lower later, and it is pricing that view into your deposit.

HDFC Bank and ICICI Bank are similar. Both top out at around 6.50% in the three-to-five-year range, per their September rate cards. Neither pays much extra for going longer.

Three options, worked through

I compared three ways to invest ₹10 lakh for five years at SBI's rates:

1. Lock for five years now at 6.05%.
2. One year, then re-lock: one year at 6.25%, then four more years at whatever the three-to-five-year rate is a year from now.
3. Two years, then re-lock: two years at 6.40%, then three more years at whatever the rate is then.

The only unknown is the rate you re-lock at. I used four scenarios for SBI's three-to-five-year rate a year from now (6.30% today):

• Cut: it falls to 5.80%.
• Hold: it stays at 6.30%.
• Realistic hike: it rises to 6.65%. (More on why "realistic" below.)
• Full hike: it rises to 6.80%, with all 50 basis points passed on to depositors.

All figures are after tax, compounded quarterly. That's the same method the SIP/FD calculator on this site uses: interest is taxed at your slab, ignoring the 4% cess and surcharge.

30% tax slab (the five-year lock ends at ₹12,34,464):

20% tax slab (the five-year lock ends at ₹12,71,945): The numbers show the difference compared with locking for five years today.

What the tables are actually saying

First: at SBI's current rates, the five-year lock only wins if rates fall. In the "hold" scenario, where nothing changes, waiting still comes out ahead by ₹10,000 to ₹15,000. That isn't a prediction about the RBI. It's just the rate card: you earn 6.40% for two years instead of 6.05% for five, and the extra carries through.

Second: the risk is lopsided. If rates rise, waiting gains you ₹22,000 to ₹33,000 on ₹10 lakh. If rates fall, waiting costs you ₹6,800 to ₹8,000 on the one-year route, and almost nothing on the two-year route. The two-year option is the interesting one: it roughly breaks even even if rates are cut, because its starting rate is the best on the card.

Third: the amounts are real, but not life-changing. ₹25,000 over five years on ₹10 lakh is about 0.5% a year. It won't transform anyone's finances. It's also free money for doing nothing more than choosing a different tenure.

Why I called 6.65% the "realistic" hike

When the RBI raises the repo rate, banks raise loan rates quickly and deposit rates slowly.

The last hiking cycle shows how slowly. The RBI raised the repo rate by 250 basis points between May 2022 and February 2023. SBI's one-to-two-year FD rate was 5.10% in February 2022. It reached 6.80% only by December 2023. That's about 170 of the 250 basis points, passed on over roughly 18 months.

At the same rate, a 50 basis-point hike would lift deposit rates by about 35 basis points, and not straight away. That's why 6.65%, not 6.80%, is the scenario I would actually plan around. It also argues for the two-year route over the one-year one: a year may simply not be long enough for banks to catch up.

The case for locking in anyway

I owe you the other side, and it's a real argument.

SBI Research could be wrong. Oil prices can collapse as fast as they spiked. If crude falls back to $80 by November, inflation fears fade and the RBI may hold or even cut again in 2027. A research desk forecast is an opinion, not a schedule.

The RBI may choose not to follow. Central banks sometimes look past oil shocks on purpose, because raising rates doesn't make oil cheaper. In 2022 it held through the first months of the oil spike before an unscheduled hike in May.

Some people need certainty more than a better rate. If this money is for a known expense five years out, such as a child's college fees or a down payment, and you would rather not think about it again, locking in has real value. That value doesn't show up in my tables.

But look at what "wrong" costs in the tables above. On the two-year route, if SBI Research is wrong and rates are cut, you give up about ₹500. That is close to the cheapest possible bet against a forecast.

Things that change the answer

• Senior citizens get 50 basis points more on every tenure. SBI's five-year senior rate is 7.05% under the "We-care" scheme, which is the highest on its card. For a senior depositor the five-year FD is much closer to break-even, so run your own numbers.
• Other banks have different rate curves. Where long tenures pay more than short ones, locking in costs you less. Some small finance banks offer 7%+ at two to three years. They are covered by the ₹5 lakh deposit insurance limit (DICGC) like any bank, but their credit risk is higher. Don't go above that limit with one of them.
• Breaking an FD early usually costs a penalty of 0.5 to 1 percentage point on the rate. If you lock for five years and rates rise sharply, breaking and re-booking can still be worth it. Check the penalty before you assume you're stuck.
• TDS. Interest above ₹40,000 a year (₹50,000 for seniors) has tax deducted at source. That doesn't change your final tax, but it changes when you get the cash.

How I'd read it

Again, not advice. If I were placing that ₹10 lakh at SBI this week, the two-to-three-year bucket is where the table points, with a reminder to look again when it matures.

The reasoning is the table, not the forecast. The two-year FD beats the five-year one if rates hold, beats it by more if rates rise, and roughly matches it if rates fall. I don't need to know what the RBI will do. I only need to not lock in the lowest rate on the card.

If you want to check where an FD sits against other options first, my earlier post on SIP vs FD after tax shows how much the tax slab changes the result. The small savings post covers PPF and SCSS, which some readers will find better than any bank FD.

Run your own numbers

Your slab, amount, bank and age all move the answer. The SIP/FD calculator takes all four and uses live SBI rates from this site's data pipeline. The methodology page shows every formula.

I'll update this post after the 7 October decision.

Related Reading

• SIP vs FD After Tax: The Actual Math: why pre-tax comparisons understate how much tax hurts a fixed deposit.
• Small Savings Schemes vs Debt Funds in 2026: PPF, NSC and SCSS against debt funds after the indexation change.
• What the Market Mood Index Measures (and Doesn't): the sentiment gauge on the calculator, and what it can't tell you.