Balance sheet management is the process by which a bank decides how large its balance sheet should be, what assets it should hold, how those assets should be funded and how much capital should support them. The goal is to earn an adequate return for shareholders while staying within regulatory requirements and the board's appetite for risk. It is led by the treasury and finance functions and overseen by senior management.
The term overlaps with asset liability management (ALM), and some banks use the two interchangeably. Where a distinction is drawn, ALM refers to the measurement and hedging of interest rate and liquidity mismatches, while balance sheet management is wider and more strategic, covering capital, funding, the leverage of the bank and the allocation of scarce resources between businesses.
The constraints a bank must meet
A bank's balance sheet is shaped by several requirements that apply at once. Any one of them can become the limit on growth.
- Risk-based capital. Capital, above all Common Equity Tier 1 (CET1), must exceed set percentages of risk-weighted assets (RWA), plus buffers.
- Leverage. The leverage ratio limits total exposure relative to Tier 1 capital, whatever the riskiness of the assets.
- Liquidity. The liquidity coverage ratio (LCR) requires a stock of liquid assets against stressed outflows over thirty days, and the net stable funding ratio (NSFR) requires stable funding for longer-term assets.
- Loss-absorbing debt. Larger banks must maintain minimum amounts of debt that can be written down in resolution.
- Stress tests. Supervisory and internal stress tests set the capital a bank must hold to survive a severe downturn.
Each asset consumes these resources differently. A government bond uses little risk-based capital but counts fully towards leverage; a mortgage uses stable funding; an undrawn credit line uses liquidity. Managing the balance sheet means finding a mix that satisfies every constraint without wasting any of them.
Objectives
Within those limits, the bank seeks to maximise sustainable earnings. The key measures are net interest margin, which reflects the spread between asset yields and funding costs, and return on equity, which relates profit to the capital employed. Management also seeks stable earnings through the interest rate cycle, a funding base that will hold in a crisis, and credit ratings that keep borrowing costs low.
Tools
On the asset side, a bank can change the pace of lending, shift between products, sell loans, or transfer risk through securitisation and credit protection so that capital is released. It manages the size and composition of its liquidity buffer, weighing the low yield of liquid assets against the protection they give.
On the liability side, the bank chooses between deposits and wholesale funding, and between short and long maturities. A strong deposit franchise is valuable because customer deposits are cheap and tend to be stable. The intended mix and timing of issuance are set out in the bank funding plan, with the spread of repayment dates tracked through the maturity profile. Capital is managed through retained earnings, dividends, share buybacks and the issue of capital instruments.
Internally, the main lever is pricing. Funds transfer pricing (FTP) charges each business for the funding and liquidity it uses, and capital allocation assigns equity to each business so that returns can be compared. Together they direct growth towards activities that pay for the resources they consume.
Governance and planning
Decisions are taken by the asset and liability committee, working within limits approved by the board. Planning usually follows an annual cycle. Business lines submit growth plans; treasury and finance combine them into a projected balance sheet; the projection is tested against each regulatory ratio under normal and stressed conditions; and plans are adjusted until the whole is coherent. The results feed the capital plan, the funding plan and the internal capital and liquidity adequacy assessments submitted to supervisors.
Positions are then monitored against the plan through the year. Because ratios are reported at period ends, some banks have reduced certain activities temporarily around reporting dates, a practice known as window dressing that supervisors discourage and have addressed by requiring some measures to be reported on an average basis.
Balance sheet management under stress
In a crisis the priorities reverse: preserving liquidity and capital comes before earnings. The contingency funding plan sets out the actions available, such as drawing on central bank facilities, selling or pledging liquid assets and slowing new lending. Recovery plans list options for rebuilding capital, including asset disposals and cancelling distributions.
The bank failures of 2023 showed how quickly balance sheet weaknesses can surface. Concentrated, uninsured deposits left rapidly, and holdings of long-dated securities had lost value as interest rates rose. Supervisors have since focused on the stability of the retail deposit mix, the speed of outflows in a digital banking environment, and the ability of banks to turn assets into cash at short notice.