Marginal Standing Facility

Also called: MSF · Topic: Banking, Credit Creation and Monetary Policy · NCERT: Beyond NCERT

Meaning

The Marginal Standing Facility (MSF) is an emergency window, always open, where a bank can borrow money from the RBI for one night. The bank pays a penal rate (a rate set above the repo rate to discourage use), which is repo + 25 basis points [1]. The bank may even pledge government bonds it holds for its SLR, up to 2% of NDTL [1].

• Why it matters: the MSF rate is the ceiling of the RBI's policy rate corridor. No bank needs to pay more than this rate for overnight money, so it caps interest rates in the overnight market [1][2].
• Formula: MSF rate = Policy repo rate + 25 bps [1]. (100 bps = 1 percentage point.)

Explanation

How it works

• A standing facility is a window that is always open. A bank uses it on its own request. It does not wait for an RBI auction.
• Tenor (how long the loan lasts): overnight. The bank borrows today and repays the next working day.
• Collateral (security given for the loan): government securities.
• The penal rate is deliberate.
• Borrowing at MSF costs more than borrowing at repo.
• So banks first try the repo window or the call money market (where banks lend to each other for one day).

• They come to MSF only when they are in real need, as a last resort.

• Introduced: May 2011.

The SLR dip: the special feature

• SLR (Statutory Liquidity Ratio) is the minimum share of deposits that a bank must keep in safe, liquid assets such as government bonds.
• NDTL (net demand and time liabilities) means, roughly, a bank's deposits and similar liabilities.
• The rule: under MSF, a bank can pledge its SLR bonds even if this takes it below the SLR requirement. It can do this up to 2% of NDTL [1].
• Why this helps:
• A bank in a cash crunch may have no spare bonds beyond its SLR holdings.
• Without the dip, it could not borrow at all.
• The dip unlocks some of those "locked" bonds, so the bank can get emergency cash.

Worked example (from our notes):

• A bank has NDTL of ₹1,00,000 crore.
• SLR dip allowed = 2% × 1,00,000 = ₹2,000 crore of SLR securities can be used to borrow under MSF.
• At an MSF rate of 5.50%, the cost of borrowing ₹2,000 crore for one night = 2,000 × 5.50% ÷ 365 ≈ ₹0.30 crore (about ₹30 lakh).

What makes MSF use rise or fall

• MSF as the corridor ceiling:
• If the call rate goes above MSF, a bank simply borrows from the RBI at MSF instead.

• So market overnight rates rarely stay above the MSF rate.

• Liquidity deficit → MSF use rises.

• Banks are short of cash → they borrow more from the RBI.

• WACR (Weighted Average Call Rate, the volume-weighted average rate in the call money market) is pushed toward the MSF rate [1].

• Things that drain cash and push banks toward MSF:

• Heavy cash demand during festivals and elections.
• Tax dates, such as advance-tax dates, when money moves from bank accounts to the government's account with the RBI.

• The RBI selling dollars to support the rupee. Banks pay rupees to the RBI, so rupee liquidity falls.

• Liquidity surplus → MSF use falls. Banks have spare cash, and WACR moves toward the SDF floor instead.

In India

• Institution: the Reserve Bank of India runs the MSF. It is one of the standing facilities inside the Liquidity Adjustment Facility (LAF), the RBI's system for managing day-to-day liquidity (LAF began in June 2000) [1].
• Link to Bank Rate: the MSF rate and the Bank Rate are kept equal [3].
• Latest corridor (5 December 2025 policy, neutral stance) [3]:

Floor	Policy rate	Ceiling
SDF 5.00%	Repo 5.25%	MSF = Bank Rate 5.50%

• Corridor width: 5.50 − 5.00 = 50 bps. It is symmetric, with 25 bps on each side of repo [1].
• Operating target: the RBI tries to keep WACR close to the repo rate. MSF sets the upper limit of the range in which WACR can move [1].
• Verify current rates before the exam. The MPC may have changed them after December 2025.

Don't confuse with

• Repo rate / LAF repo: repo is the policy rate, the middle of the corridor, and it is offered through RBI windows and auctions. MSF is a penal, last-resort window at repo + 25 bps that banks use on their own [1].
• Standing Deposit Facility (SDF, April 2022): the opposite window. SDF absorbs surplus cash, needs no collateral and is the floor (repo − 25 bps). MSF injects cash against collateral and is the ceiling [1].
• Bank Rate: it is set equal to the MSF rate [3], but it is a separate rate. MSF is the actual overnight borrowing window.
• SLR itself: the SLR is a holding requirement. The MSF "SLR dip" is a temporary relaxation of it (up to 2% of NDTL), allowed only for MSF borrowing [1].

Prelims Hooks

• MSF was introduced in May 2011. It is overnight, at a penal rate of repo + 25 bps [1].
• SLR dip under MSF: allowed up to 2% of NDTL [1].
• MSF = ceiling of the policy rate corridor. SDF = floor. Width = 50 bps [1].
• MSF rate = Bank Rate. Both were 5.50% in December 2025 [3].
• Trap: MSF is a standing facility used by banks on their own. It is not an RBI auction like VRR/VRRR.
• Liquidity deficit → WACR moves toward MSF. Surplus → WACR moves toward SDF [1].

Mains Points

• Safety valve for the banking system:
• MSF gives any bank a guaranteed source of overnight cash, so a short cash shortage does not become a crisis.

• The penal rate and the 2% of NDTL cap on the SLR dip stop banks from depending on it too much [1].

• Transmission and the ceiling:

• When the system is in deficit, WACR stays near MSF instead of repo.
• Then a repo rate cut does not reach borrowers fully.

• So the RBI must add liquidity through VRR, OMOs or CRR changes, and not just change the rate [1].

• Currency defence vs domestic liquidity (GS-III):

• When the RBI sells dollars to support the rupee, rupee liquidity is drained.
• Banks then turn to MSF, and WACR rises toward the ceiling.
• Credit can tighten even when the RBI wants easier money. This links external-sector management with monetary policy.

Related concepts

• Liquidity Adjustment Facility
• Variable Rate Repo
• Variable Rate Reverse Repo
• Standing Deposit Facility
• Policy rate corridor
• Weighted Average Call Rate
• Banking system liquidity

Read more

• The operating framework: LAF, the corridor and WACR