Public sector banks are growing their loan books faster than their deposits, forcing them to increase market borrowings by roughly 29%. While healthy asset quality and system liquidity provide a buffer, this structural gap between deposit collection and credit demand could pressure future profit margins. Investors should monitor loan-to-deposit ratios and cost of funds to gauge the impact on profitability.
Public sector banks (PSBs) in India are currently managing a challenging balance between lending growth and deposit mobilization. While credit demand from businesses and individuals remains strong, the money coming in through customer deposits is not keeping pace. This mismatch is forcing state-owned lenders to rely more heavily on market-based borrowing to fund their operations, a trend that stands in contrast to their private sector peers.
Data from the June quarter shows that public sector banks managed a 10.7% year-on-year growth in deposits, whereas private sector lenders achieved 14.3%. To bridge this funding gap and keep up with their aggressive lending targets, PSBs increased their own borrowings by approximately 29%. For investors, this shift is significant because customer deposits are generally a cheaper source of funds than borrowing from the money market. If this trend continues, the reliance on more expensive funding sources could put pressure on profit margins, specifically the net interest margin—a key metric representing the profit banks make from lending.
Why the Funding Gap Matters
The gap between credit growth and deposit collection has pushed the loan-to-deposit ratio (LDR) for the banking system to decade-high levels, exceeding 82%. The LDR essentially shows how much of a bank's total deposits are being lent out as loans. When this ratio climbs, it indicates that banks have less of a liquidity cushion. While PSBs have historically enjoyed a strong base of stable, low-cost deposits, their market share in total deposits has declined over the last decade, with private banks gradually capturing a larger slice of the retail savings segment.
The Buffer for Profitability
Despite these funding pressures, the banking sector remains in a strong position regarding asset quality. Gross non-performing assets (NPAs)—loans that borrowers have stopped paying back—have fallen to a multi-decadal low of roughly 1.8% as of March 2026. This means the money being lent is generally being repaid, which protects the banks' balance sheets. Additionally, the broader financial system is currently supported by adequate liquidity, and the Reserve Bank of India is actively managing cash flow conditions. For instance, the RBI’s ongoing FCNR(B) forex swap program, expected to bring in significant foreign currency liquidity by the end of August 2026, serves as a stabilizer for the banking system.
What Investors Should Track
While the current environment is stable, the primary monitorable for shareholders is whether public sector banks can improve their deposit mobilization to reduce their reliance on wholesale borrowing. If loan-to-deposit ratios continue to creep upward without a corresponding rise in stable deposits, it could limit the banks' ability to maintain current lending momentum. Investors may look for updates on cost of funds and margins in upcoming quarterly reports to see if the increased reliance on market borrowing is beginning to erode profitability.