Benchmark interest rate

Also called: Benchmark rate, Reference rate · Topic: Banking, Credit Creation and Monetary Policy · NCERT: Class 7, Ch 8 "Banks and the Magic of Finance"

Meaning

A benchmark interest rate (also called benchmark rate or reference rate) is the main reference rate that other interest rates in the economy are linked to. When it moves, the others are expected to move too. In India, the benchmark is the RBI's policy repo rate, the interest rate at which the RBI lends money to banks for a short time (overnight to a few days). Banks pledge government securities to get this loan.

It matters because monetary policy transmission starts here. Monetary policy transmission is the chain through which a change in the benchmark rate reaches bank loan rates, spending, output (GDP) and inflation. The formula below measures how much of a benchmark change actually reaches borrowers:

Pass-through (%) = (Change in lending or deposit rate ÷ Change in repo rate) × 100

Explanation

How the benchmark works: the policy corridor

• The RBI does not set one rate alone. It sets a corridor, a band that keeps overnight rates close to the repo rate. The 2026 corridor [3][4]:
• Floor: SDF (Standing Deposit Facility) rate at 5.00%. The RBI pays this rate when banks park their extra cash with it.
• Middle: Repo rate at 5.25%. This is the benchmark.

• Ceiling: MSF (Marginal Standing Facility) rate and Bank Rate at 5.50%. MSF is the emergency borrowing rate for banks.

• Why overnight rates stay inside the band:

• No bank will lend to another bank below 5.00%, because it can earn 5.00% from the RBI.

• No bank will borrow above 5.50%, because it can borrow from the RBI at 5.50%.

• The rate that actually moves inside this band is the WACR (Weighted Average Call Rate, the average rate on overnight loans between banks). WACR is the RBI's operating target. The repo rate is the tool the RBI uses to steer it.

How a change in the benchmark spreads: the stages

• Stage 1: money market (very short-term borrowing). A repo change first moves WACR, TREPS (Tri-party Repo, overnight lending backed by securities and settled through CCIL) and market repo rates.
• Stage 2: bonds. Then T-bill yields (Treasury bills, government debt of up to 1 year), CP/CD rates (Commercial Paper issued by companies, Certificates of Deposit issued by banks) and G-sec yields (dated government securities) move.
• Stage 3: bank rates. Then deposit rates (WADTDR, the Weighted Average Domestic Term Deposit Rate) and loan rates (WALR, the Weighted Average Lending Rate) move.
• Stage 4: spending. EMIs (Equated Monthly Instalments), business investment, share and property prices, and the exchange rate all change.
• Stage 5: final goals. Output and inflation change.
• Example of a rate hike:
• Repo up 50 bps → WACR rises the same day.
• After weeks → T-bill and CD rates rise → banks raise their deposit and loan rates.

• After months → home and car loans cost more → people buy less → prices rise more slowly.

• Lags: a rough estimate is 2-3 quarters before output changes and 3-4 quarters before inflation changes. RBI studies give different numbers, so treat these as rough ranges. Because of these delays, the RBI decides on the basis of projected inflation, not today's figure.

Worked examples with numbers

• Basis points: 1 basis point (bp) = 0.01 percentage point, so 100 bps = 1%.
• A loan linked to the benchmark (EBLR):
• Loan rate = repo rate + a spread fixed by the bank.
• With repo at 5.25% and a spread of 2.75%, the loan rate is 8.00%.

• If repo falls by 25 bps, the loan rate falls to 7.75% at the next reset. The rate must be reset at least once every 3 months.

• Effect on EMI: a home loan of ₹30 lakh for 20 years (240 months):

• At 9.0%, the EMI is about ₹26,992.
• At 8.5% (after a 50 bps cut is fully passed on), the EMI is about ₹26,035.

• The borrower saves about ₹957 a month and can spend it on other things. This is how a cut in the benchmark raises consumption.

• Measuring pass-through: in 2022-23, the repo rate rose by 250 bps and WALR on fresh loans rose by 187 bps. Pass-through = 187 ÷ 250 × 100 = 75% [2].

What decides whether the benchmark "works"

• Fixed-rate deposits: banks have already promised fixed rates to depositors for 1-5 years. When the repo rate falls, their cost of funds falls slowly, so they cannot cut loan rates quickly.
• Administered small-savings rates: the government sets the rates on PPF, NSC and post office deposits. If banks cut their deposit rates below these, savers move their money away.
• Internal benchmarks: loans priced on a bank's own MCLR (Marginal Cost of Funds based Lending Rate) adjust more slowly than loans linked directly to the repo rate.
• The state of the economy (IMF, 2026) [6]: rate changes have strong effects on output in recessions and little effect in booms. The effect on prices is weak in both cases.
• Direction: pass-through is stronger when rates are rising than when they are falling [2].

In India

• Who sets it: the RBI's Monetary Policy Committee (MPC) sets the policy repo rate. The RBI publishes its minutes 14 days after each meeting. For example, the minutes of the August 2026 meeting came out on 19 August 2026 [4].
• What NCERT calls it: Class 7 NCERT describes the repo rate as "the base interest rate that the RBI fixes for lending money to commercial banks".
• Latest position (2026):
• The repo rate is 5.25%. It was kept unchanged at the April, June and August 2026 meetings [3][4].
• The stance is neutral.
• The August 2026 meeting was the 62nd MPC meeting, held on 3-5 August. The vote to keep the rate was unanimous [4].

• The next meeting is set for 5-7 October 2026 [4].

• Recent path:

• May 2022 onwards: the rate rose by 250 bps to 6.50% [2].
• April 2025: a 25 bps cut brought it to 6.00% [5].

• By April 2026: it had fallen to 5.25%, a total cut of 125 bps from 6.50% [3].

• Projections behind the decision (April 2026): CPI inflation of 4.6% and real GDP growth of 6.9% for 2026-27 [3].

• Linking bank loans to the benchmark:
• Lending benchmarks changed in this order: BPLR → Base Rate (2010) → MCLR (2016) → EBLR (External Benchmark Lending Rate, compulsory from 1 October 2019). EBLR applies to new floating-rate retail loans (home, auto, personal) and loans to MSMEs.
• Most banks chose the policy repo rate as their external benchmark [2].

• The goal was that loan rates should no longer depend on how fast banks change their deposit rates [2].

• Transmission record [2]:

• In the 2022-23 cycle, pass-through was 75% on fresh loans but only 44% on outstanding loans. Old loans change their rates slowly.
• Over the long run, every 100 bps change in the repo rate moved lending rates by 69 bps over the full sample, and by 82 bps in the EBLR period (2019 Q3 to 2022 Q4).
• In June 2023, the share of floating-rate loans linked to an external benchmark was 87.6% in foreign banks, 73.2% in private banks and only 36.1% in public sector banks.

Don't confuse with

• Base Rate (2010-16): this was a bank's own minimum lending rate, not an RBI rate. Class 7 NCERT calls the repo rate the "base interest rate", but that is not the Base Rate system.
• WACR (operating target): WACR is the market's overnight call money rate that the RBI tries to steer. The repo rate is the benchmark policy rate the RBI sets to steer it.
• Bank Rate / MSF: both are 5.50% (2026) and form the ceiling of the corridor. The benchmark is the repo rate at 5.25%, in the middle.
• EBLR / MCLR: these are lending benchmarks that banks use to price their loans. EBLR is usually the repo rate plus a spread. The policy benchmark itself is the repo rate set by the MPC.

Prelims Hooks

• India's benchmark policy rate is the policy repo rate, the rate at which the RBI lends to banks overnight to a few days against government securities.
• Corridor in 2026: SDF 5.00% (floor) < Repo 5.25% < MSF = Bank Rate 5.50% (ceiling) [3][4].
• The operating target of RBI monetary policy is WACR, not the repo rate.
• EBLR became compulsory from 1 October 2019 for new floating-rate retail and MSME loans. Most banks linked it to the repo rate [2].
• Pass-through (%) = Change in lending or deposit rate ÷ Change in repo rate × 100. In 2022-23 it was 75% on fresh loans and 44% on outstanding loans [2].
• Trap: the share of floating loans linked to an external benchmark (June 2023) was lowest in public sector banks (36.1%), not private or foreign banks [2].

Mains Points

• Faster transmission vs bank profits:
• EBLR ties loan rates directly to the benchmark, but deposit rates stay fixed for years.
• So when the repo rate falls, banks' net interest margins (the gap between what they earn on loans and pay on deposits) shrink.

• Making transmission faster therefore puts pressure on bank profits. Reform is needed on the deposit side too.

• Fiscal and monetary policy are linked:

• Heavy government borrowing keeps G-sec yields high, which weakens repo rate cuts.
• Administered small-savings rates stop banks from cutting deposit rates.

• Keeping to the fiscal deficit path and aligning small-savings rates with market rates would make the benchmark more effective.

• Reach and credibility:

• Moneylenders are outside RBI supervision (Class 10 NCERT), so poor and rural borrowers feel little of a repo rate change. Formal credit through SHGs, MUDRA and priority sector lending widens the benchmark's reach.
• Transmission depends on the state of the economy [6][7]. This argues for acting early on the basis of projections, with credible forward guidance, MPC minutes and a clear stance.

Related concepts

• Monetary policy transmission
• Forward guidance

Read more

• Transmission: from the repo rate to the real economy