What it means
A bank takes in deposits and lends most of the money out, so its balance sheet is full of both promises to pay and promises to be repaid. It is solvent when its assets, mainly loans and securities, are worth more than its liabilities, mainly deposits and borrowings.
The cushion in between is its capital, also called equity. If too many loans go bad, that cushion shrinks.
When losses wipe out the cushion, the bank is insolvent even if it still has cash in the vault. This is why regulators watch capital levels so closely.
Analysts judge solvency using capital ratios, which compare a bank's capital with its risk-weighted assets (loans and other holdings adjusted upwards for how risky they are). They also look at the share of loans that are overdue, how much has been set aside for expected losses, and how much of the bank's value depends on assets that are hard to price.
Solvency and liquidity are connected but not identical. A solvent bank can still fail if depositors panic and demand their money all at once, because loans cannot be turned into cash quickly.
An illiquid but solvent bank can usually be helped by a central bank, while an insolvent bank needs recapitalisation or resolution. For non-finance professionals, the practical use is counterparty judgement.
If your company holds large deposits at one bank, you need to know whether that bank is sound. Spreading deposits across several banks is a common way to limit the damage if one fails.
Regulators use solvency measures to decide when to step in. If capital falls below set trigger levels, the bank may be barred from paying dividends, forced to raise new equity or placed under special supervision.
The aim is to act early, while the problem is still fixable and before depositors lose money.
In practice
Real-world examples
Example 1
A manufacturing company holds $4 million in a single bank account. The treasurer reviews the bank's published capital ratio each quarter and spreads the balance across three banks when the ratio looks weak. The company's exposure to any one bank falls to $1.4 million. If one bank ran into trouble, the company would still have access to most of its cash and could keep paying staff and suppliers.
Example 2
A credit analyst is deciding whether to approve a trade finance facility with a regional bank. She compares its capital ratio, overdue loans and funding sources against peers. The bank passes, but she sets a lower limit than she gave a larger competitor. She also schedules a review in six months to see whether the bank's overdue loans have risen.
Example 3
A retail investor reads that a bank has doubled its provisions for bad property loans. A finance-savvy friend explains this reduces profit but is a healthy sign if it keeps capital above the regulatory minimum. The investor decides to keep holding the shares. She also notes that a bank which hides losses is far more dangerous than one that reports them early.
Think of it
Imagine a homeowner. Bank solvency is like your total net worth. If your house and savings are worth 400000 pounds and your mortgage is 300000 pounds, you are solvent with a 100000 pound buffer, even if you only have 50 pounds in your wallet today.
Formula
Calculation
Capital ratio = Tier 1 capital / Risk-weighted assets x 100
Solvency check = Total assets - Total liabilities (must be greater than 0)
A bank reports Tier 1 capital of $90,000,000 and risk-weighted assets of $1,000,000,000. Capital ratio = 90,000,000 / 1,000,000,000 x 100 = 9%. Now suppose the bank writes off $60,000,000 of bad loans, which cuts capital to $30,000,000. The new ratio = 30,000,000 / 1,000,000,000 x 100 = 3%, which is likely to fall below the minimum that regulators require.Case study
Seen in the real world
Cedarpoint Savings is a fictional regional bank that grew quickly by lending heavily to one property developer. When the developer defaulted on $120,000,000 of loans, Cedarpoint had only set aside $20,000,000 for losses, and its capital shrank sharply.
Regulators in this illustrative story required the bank to raise fresh equity within 90 days. The owners injected new capital and sold part of the loan book, which restored the capital ratio. The episode shows that solvency depends on how concentrated the loans are, not only on how large the bank looks.
Watch out
Common mistakes
- Confusing solvency with liquidity. A bank can have plenty of cash and still be insolvent, or be solvent but short of cash for a few days.
- Judging a bank by its size alone. Large banks can fail when losses exceed capital.
- Assuming all deposits are protected whatever the amount. Deposit insurance schemes cap the amount covered per depositor.
Questions
People also ask
What is a good capital ratio for a bank?
Regulators set minimum ratios and most banks hold more than the minimum, but the right level depends on the bank's risk profile.
Can a profitable bank be insolvent?
Yes, if past losses or falling asset values have pushed total liabilities above the value of assets, regardless of current profit.
How can I check if my bank is solvent?
Read its published capital ratios, credit ratings and regulatory filings, and compare them with peers.