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// WORKED EXAMPLETHE ARITHMETIC A DECISION RESTS ON

Cash Cover: a Worked Example

The bank's promise is good; the cash makes yours good too.

BY MICHAEL SHANG · SIXTEEN YEARS IN COMMERCIAL BANKING · UPDATED

// THE SHORT ANSWER

Cash cover turns a customer's promise to repay the bank into money the bank already holds. When a bank issues a guarantee or a letter of credit, it promises to pay a third party, and the customer promises to reimburse it if that happens. Cash cover backs the second promise with a deposit the customer cannot touch until the bank's promise has ended. The credit risk on the customer then largely falls away; what is left is the risk that the deposit falls short when it is needed, after a currency move or because a document fails. The customer's cost is cash that cannot work in the business.

BASIS  Practitioner judgment from sixteen years in commercial banking, set out in How Bankers Think (Highbank Press, 2026). Every borrower on this site is a composite constructed for teaching, not a client. The market is mid-market commercial lending as practised in New Zealand and Australia; where a convention differs elsewhere, the page says so.

// MAKE THE CALL

Issue 03 — Kauri Dairy Holdings. The patriarch is retiring. The bank hears about the succession plan from the accountant first. Your call first, then the senior banker's.

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// 01 — WHY A BANK ASKS FOR CASH AGAINST ITS OWN PROMISE

A performance bond, an advance payment guarantee or a standby credit costs the bank nothing until it is called. When it is called, the bank must pay, often on demand and without arguing about the underlying contract, and then recover the money from its customer under the counter-indemnity the customer signed. That recovery is an ordinary unsecured claim unless something stands behind it.

For most customers, the bank's general security and its assessment of the business are enough. Cash cover is for the cases where they are not: a customer whose credit the bank would not take on, a one-off guarantee for a customer with no facilities, a guarantee that will outlast the loans it was issued beside, and, often, a customer moving its borrowing to another bank while guarantees the old bank issued are still live. The old bank can release its security, but it cannot cancel the guarantees before they expire unless their beneficiaries release them.

// 02 — HOW THE DEPOSIT IS HELD

A deposit is protection only if three things are true, and each is a matter of drafting. The money must be blocked: held in an account the customer cannot withdraw from, often under a flawed-asset clause that makes the deposit repayable only once the exposure has ended. The bank must be able to use it: by a charge over the deposit, a contractual right of set-off, or both. And it must be enough: in the currency of the exposure, or with a margin for the exchange rate, and for as long as the exposure lasts.

Cover required = exposure × cover ratio
Cover ratio = 100% where the deposit and exposure share a currency;
more where they do not, by an amount the bank sets

How the bank protects its position against other creditors depends on the market. In Australia, a bank that takes security over an account held with itself perfects that security by control under the Personal Property Securities Act, without registering. New Zealand's Act has no control rule: a security interest in the deposit is perfected by registering a financing statement, and a purely contractual right of set-off sits outside the Act. In the UK, a company's charge over a deposit is registrable at Companies House unless it qualifies as a security financial collateral arrangement, which turns on the bank's control of the account. In the Basel capital standards, cash on deposit with the lending bank is eligible collateral that can reduce the capital an exposure needs, only if the documents are legally enforceable, and under the comprehensive approach with an 8% haircut where collateral and exposure are in different currencies. National rules apply it with their own choices.

// 03 — THE EXAMPLE

A lift installation contractor, constructed for this page like every figure in it, refinances its term loan and overdraft to a new bank. Its old bank has three guarantees outstanding for it: a US$1.2m performance bond to a hospital builder that expires in nine months, a US$0.5m retention bond that expires in twenty months, and an advance payment guarantee to an overseas buyer, denominated in euro and worth US$800,000 at today's rate. The old bank agrees to release its general security if the guarantees are cash-covered, at 100% for the dollar bonds and 110% for the euro guarantee. The ratios are the example's, not a market norm.

Performance bond 1,200,000 × 100% = 1,200,000
Retention bond 500,000 × 100% = 500,000
Advance payment 800,000 × 110% = 880,000
Cash cover, in US$ 2,580,000

Nine months later the performance bond expires with no demand made, and the old bank releases US$1.2m back to the contractor. Then the contractor delivers late, and the overseas buyer calls the advance payment guarantee in full. The euro has risen 7% against the dollar since the cover was set.

Cost to the bank of the call: 800,000 × 1.07 = 856,000
Cover held for it 880,000
Returned to the contractor 24,000
Had cover been 100%: 856,000 − 800,000 = 56,000 unsecured

The margin did its job. Without it the old bank would hold an unsecured claim of US$56,000 against a customer that banks elsewhere. The contractor, for its part, took US$2.58m out of its working capital at the start, a gap the new bank's facilities carried, in this example, before they funded any growth. Had the contractor held euro, cover in that currency would have matched the guarantee without a margin.

// 04 — HOW IT DIFFERS FROM A BACK-TO-BACK LOAN

Both rest on a deposit held by the bank, so they are often confused. Cash cover sits behind an exposure that may not become a debt at all: a guarantee, a credit, a card limit. A back-to-back loan puts a deposit behind money already lent, and the deposit is often placed by someone other than the borrower, a parent or an owner, which is why it draws questions from financial crime teams that ordinary cash cover does not.

It also differs from margin under a derivatives credit support annex, which moves, often daily, with the value of the trades. Cash cover is usually sized when it is given and follows the exchange rate only if the documents include a top-up clause, which is why it often carries its own allowance for the currency. And it differs from general security, which covers the customer's bank accounts too but leaves the customer free to spend them.

DEFINED IN ONE PARAGRAPH → · PRODUCT FILE: BANK GUARANTEE → · COUNTER-GUARANTEE →

// 05 — WHERE IT DECIDES A FILE

In a refinance, cash cover is one of three common ways to deal with the old bank's guarantees. The new bank can issue replacements and the beneficiaries return the originals, which needs each beneficiary's cooperation. The new bank can give the old one a counter-guarantee, which needs the old bank to accept the new bank's risk. Or the customer can cash-cover them, which needs the cash. The credit officer at the new bank reads the third option as a working capital cost, and tests liquidity headroom with the deposit taken out.

Where a bank cash-covers a guarantee for a weak customer, the credit decision is small and the operational one is large: the deposit must be in the right account, under the right document, in the right currency, before the guarantee is issued. A file where the guarantee went out a week before the deposit was blocked has, for that week, no cover at all.

REFINANCING A BUSINESS LOAN → · WHAT YOUR BANK HOLDS AS SECURITY →

// SOURCES

The documents the statements on this page rest on. Each was opened and checked when cited.

  1. Basel Committee on Banking Supervision, Basel Framework, CRE22 Standardised approach: credit risk mitigation (in force 1 January 2023) — CRE22.9, CRE22.34 and CRE22.52 — Lists cash on deposit with the lending bank as eligible collateral, applies an 8% haircut under the comprehensive approach where collateral and exposure are in different currencies, and requires the documentation to be legally enforceable in all relevant jurisdictions — section 02.
  2. Personal Property Securities Act 1999 (New Zealand), sections 23(c) and 41 — Perfection is by registration of a financing statement or by possession, with no control rule, and the Act does not apply to a right of set-off or combination of accounts — section 02.
  3. Financial Collateral Arrangements (No. 2) Regulations 2003 (UK), regulation 4(4) — Disapplies the Companies Act 2006 charge-registration rules (sections 859A and 859H) for a security financial collateral arrangement — section 02.

// QUESTIONS PEOPLE ASK

Why does my bank want cash cover for a bank guarantee?
Because if the guarantee is called, the bank pays the beneficiary and then needs you to repay it. Where the bank does not hold enough other security or does not want the credit risk, for example because you are moving your borrowing elsewhere or the guarantee outlives your facilities, it asks for a deposit it can apply to that repayment. With cash cover in place, the guarantee costs the bank little credit risk and its fee may be lower.
When will the bank release my cash cover?
When it is satisfied the guarantee or credit can no longer be called: usually once the beneficiary returns the original and releases the bank, or once the expiry date has passed without a demand. Some guarantees have no fixed expiry, or are governed by a law under which expiry dates are not decisive, and the bank will hold the cover until it has a release. Partial releases are often agreed as guarantees reduce.
Do I earn interest on a cash cover deposit?
Usually, at a rate agreed with the bank, though often a term-deposit or call rate lower than you could earn on free cash. The interest may be paid out or added to the deposit. The real cost is the use of the money: cash held as cover is not available to pay suppliers or reduce an overdraft, so a borrower compares it with the cost of a counter-guarantee or other security.
Is cash cover the same as cash collateral?
Cash cover is one kind of cash collateral: a deposit held by the bank against an exposure it has to the customer, usually a guarantee, a letter of credit or a card limit. Cash collateral is the broader term and includes margin posted under derivatives agreements, which changes daily with market values, and deposits securing loans, such as a back-to-back loan.

THE IN-TRAY · ONE MINUTE

Make the call on one file.

A short file on the ground this page covers. Every option opens with how far it sits from a senior banker’s read.

THE NUMBER · THE LOAN · PROTECTION

A company fails. One lender is secured over the plant; the other is unsecured. The receiver's realisations, after costs, are below. There are no preferential claims.

Secured lender owed
US$10m
Unsecured lender owed
US$5m
Realised from the plant
US$9m
Realised from everything else
US$2m

What does the unsecured lender recover?

1 FILES · PICK A CALL ON ANY OF THEM

7 MORE ON THE LOAN · PROTECTION →WHERE DO YOU READ FROM? THE PLACEMENT →