Net Stable Funding Ratio

Indian Economy glossary

Also called: NSFR · Topic: Banking Regulation, NPAs and Financial Stability · NCERT: Beyond NCERT

Meaning

The Net Stable Funding Ratio (NSFR) is a Basel III liquidity rule. It says a bank's available stable funding must be at least equal to (not below) its required stable funding over a one-year horizon.

NSFR = Available Stable Funding (ASF) ÷ Required Stable Funding (RSF) over one year ≥ 100%

It matters because it stops banks from paying for long-term loans with short-term borrowing. Short-term wholesale money (large, short loans from other banks and big investors) is the first money to leave in a crisis. The NSFR has been in force in India since October 2021.

Explanation

Why the rule exists: the funding mismatch

  • Asset-liability mismatch (ALM): a bank's liabilities (what it owes, mainly deposits) can be taken out at short notice. Its assets (what it is owed, mainly loans) come back slowly, over years.
  • The danger chain:
  • A bank funds 10-year loans with money borrowed for a few weeks.
  • Stress hits, and lenders refuse to roll over (renew) that short-term money.

  • The bank cannot get its long loans back in time, so it faces a funding crisis even if its loans are good.

  • Basel III has two liquidity rules on top of its capital rules:

  • LCR covers the short term (30 days).
  • NSFR covers the long term (1 year). It looks at the bank's structure: how the whole balance sheet is funded.

The two parts: ASF and RSF

  • Available Stable Funding (ASF) is the numerator. It is the money the bank can count on to stay for one year.
  • It includes capital (owners' money), long-term borrowing (such as bonds) and stable deposits.

  • Each item is weighted by how likely it is to stay for a year. Capital counts fully. Short-term wholesale money counts little or nothing.

  • Required Stable Funding (RSF) is the denominator. It is the stable funding the bank's assets need.

  • Each asset is weighted by how hard it is to sell within one year.
  • Cash needs very little stable funding. Long-term loans need a lot, because they cannot quickly be turned into cash.

What makes NSFR rise or fall

  • NSFR rises (safer) when:
  • The bank raises more capital, long-term deposits or long-term bonds, so ASF goes up.

  • The bank moves towards more liquid assets such as cash and government securities, so RSF goes down.

  • NSFR falls (riskier) when:

  • The bank relies more on short-term wholesale borrowing, so ASF goes down.
  • The bank adds more long-term, hard-to-sell loans, so RSF goes up.

Worked example

  • ASF = Rs 950 crore; RSF = Rs 1,000 crore
  • NSFR = 950 ÷ 1,000 = 95%, which is below 100%, so the bank is in breach.
  • Fixes:
  • Raise Rs 50 crore more of stable funding (longer-term deposits or bonds), so ASF = Rs 1,000 crore and NSFR = 100%, or
  • Shift part of its assets to more liquid ones, so RSF falls to Rs 950 crore.

In India

  • Regulator: the Reserve Bank of India (RBI) applies NSFR to banks as part of its Basel III liquidity framework.
  • In force from October 2021, with a minimum of 100%.
  • It works together with the LCR, which has applied at 100% since January 2019.
Feature LCR NSFR
Horizon 30 days 1 year
Tests Surviving a sudden run Structural funding mismatch
Minimum 100% (since Jan 2019) 100% (since Oct 2021)
  • Why it matters more now: with UPI and net banking, money can leave at the tap of a phone. For this reason the RBI tightened the short-term LCR rules. Retail deposits reachable through internet and mobile banking get an extra 2.5% run-off factor, effective 1 April 2026 [1]. A run-off factor is the share of a deposit that is assumed to leave in a crisis. NSFR adds the longer-term check, so a bank's day-to-day funding base is sound in the first place.

Don't confuse with

  • Liquidity Coverage Ratio (LCR): LCR = HQLA ÷ net cash outflows over 30 days. It tests whether the bank can survive a sudden run. NSFR looks at one year and tests the structure of the bank's funding. Common trap: the "one-year" horizon belongs to NSFR, not LCR.
  • Statutory Liquidity Ratio (SLR): SLR is the share of deposits a bank must hold in safe liquid assets. It is a rule about a stock of assets. NSFR compares the sources of funding with the funding needs of assets.
  • Capital adequacy (CRAR): CRAR (Capital to Risk-weighted Assets Ratio) tests solvency, meaning whether the bank has enough of its own money to absorb losses. NSFR tests liquidity and funding. A well-capitalised bank can still fail if its funding is unstable.
  • Leverage ratio: Tier 1 capital ÷ total exposure, with no risk weights. It limits how much a bank borrows in total. It does not look at how long the borrowing lasts, which is what NSFR checks.

Prelims Hooks

  • NSFR = ASF ÷ RSF over one year ≥ 100%. It is a Basel III liquidity standard.
  • In India, NSFR has been in force since October 2021. The LCR has applied at 100% since January 2019.
  • Horizon trap: LCR = 30 days; NSFR = 1 year.
  • ASF = capital + long-term borrowing + stable deposits, weighted by how likely they are to stay for a year. RSF = assets weighted by how hard they are to sell within a year. Long loans need more stable funding than cash does.
  • Purpose: to limit dependence on short-term wholesale funding, which disappears first in a crisis.
  • Worked trap: ASF Rs 950 crore ÷ RSF Rs 1,000 crore = 95%, which is a breach, not compliance.

Mains Points

  • Stability vs lending cost: NSFR pushes banks towards long-term deposits, bonds and capital. These cost more than cheap short-term wholesale money.
  • Stable funding costs more, so the bank's cost of funds rises.
  • Banks may charge more for long-term loans (such as infrastructure loans) or give fewer of them.

  • The trade-off: fewer funding crises, but credit may cost more.

  • Two-layer liquidity defence in the digital era: LCR handles a sudden 30-day run. NSFR fixes the underlying funding mismatch. Digital runs are faster (Silicon Valley Bank, USA, 2023), and the RBI has already raised run-off factors for deposits reachable through internet and mobile banking [1]. Sound one-year funding structure is therefore a first line of defence, not a formality.

  • Link to wider financial stability: NSFR works alongside capital rules (CRAR, D-SIB surcharges), Prompt Corrective Action (PCA) and deposit insurance (DICGC). Together they reduce the chance that a bank needs a bail-out, which protects taxpayers and limits moral hazard (taking more risk when protected from the consequences).

Related concepts

Read more

Sources

  1. 1RBI Notification RBI/2025-26/27 — Basel III Framework on Liquidity Standards – LCR: review of HQLA haircuts and deposit run-off rates (21 April 2025)rbi.org.in · tier 1