Letter of Credit Process: Budget for Cash Collateral and Bank Credit Limits

Planning the letter of credit process starts with a financing question: can your business support the bank commitment without starving day-to-day operations of cash? Before agreeing to an LC-backed purchase, importers need to understand both the cash they may have to pledge and the credit capacity the transaction will consume.

A letter of credit can help a supplier accept your order, but it does not automatically provide working capital. The bank may require cash collateral, allocate an existing credit limit or approve a separate import facility. Those requirements can arise before shipment and remain relevant after goods arrive.

Plan the letter of credit process before signing the purchase order

An import LC is a bank undertaking to pay against a complying presentation of documents under its terms. Banks examine documents, not the goods themselves, so an LC does not guarantee product quality or supplier performance. Your obligation to reimburse the bank is governed by your agreement with it, not by whether you have sold the goods or collected from customers.

The commercial consequence is straightforward: payment assurance and financing capacity are different things. An LC may support the transaction while restricting the resources you need for freight, customs clearance, inventory and your next purchase.

Before committing to an issuance deadline, establish:

• Whether the bank has approved the necessary facility.
• How much usable capacity remains after existing commitments.
• What cash or other security must be provided.
• Whether settlement requires your cash or can use separately approved financing.

Make the purchase order's LC requirements achievable. A supplier's requested issuing bank, confirmation arrangement or payment tenor may need further approval from the banks involved.

Map bank approval from application to issuance

An import letter of credit facility is not necessarily available simply because you maintain a business account. Requirements differ by bank, borrower, market and transaction.

1. Apply for the appropriate facility

Explain your purchasing cycle, expected order sizes, currencies, suppliers and payment tenors. The bank may request financial statements, account information, ownership details, trading history and transaction documents.

Ask whether the proposed facility covers only LC issuance or also import loans to fund settlement. A combined facility may contain sublimits that prevent you from using the entire approved amount for either purpose.

2. Complete underwriting and security arrangements

The bank assesses repayment capacity and proposed security. Approval may be conditional on signed facility documents, guarantees, pledged deposits or other requirements.

An indicative offer is not the same as an operational facility. Confirm what remains outstanding before you promise the supplier an issuance date.

3. Obtain transaction approval and issue the LC

Even with an approved facility, an individual LC may require transaction checks. Country exposure, supplier details, goods, tenor, compliance requirements and proposed wording can affect acceptance.

Request confirmation of the amount that issuance will reserve, the collateral required and the conditions for subsequent release. Keep that confirmation alongside the purchase order and your cash-flow forecast.

Understand cash collateral, security and usable limits

Letter of credit cash collateral requirements are bank- and borrower-specific. Do not assume every importer must fully cash-cover an LC, or that an established credit relationship eliminates collateral requirements.

The bank may seek a cash margin, other security, guarantees or a combination. Ask whether the margin is fixed for the transaction or can change under the facility agreement.

Also distinguish the headline LC credit limit from usable headroom. Existing LCs, import loans, guarantees or other products may share the same overall facility. Transaction-specific restrictions can reduce what is available for your next order.

Use a clearly defined planning example

Suppose, purely for illustration, your bank approves a $150,000 LC limit. It counts each outstanding LC at its full face value and requires a 20% cash margin without reducing facility utilization for that margin.

Issuing a $100,000 LC would then:

• Restrict $20,000 of your cash as collateral.
• Use $100,000 of the LC limit.
• Leave $50,000 of LC headroom, assuming no other usage.

The $20,000 is restricted cash, not automatically an additional purchase expense. Ask whether it will be applied toward settlement or released separately. Otherwise, your forecast may double-count the invoice funding requirement or overlook a temporary cash gap while awaiting release.

These figures and assumptions are hypothetical, not standard bank terms. Obtain your bank's actual utilization and collateral rules.

Build a liquidity timeline through collateral release

Your forecast should track when funds become unavailable, when payment falls due and when capacity becomes reusable. A shipment schedule alone cannot show this.

| Stage | Cash-flow question | Facility question | |---|---|---| | Before issuance | When must the margin and upfront fees be funded? | Is the facility fully available? | | LC issuance | Which cash becomes restricted? | How much capacity is reserved? | | Production and shipment | What operating and logistics costs arise? | Will delays extend utilization? | | Presentation and settlement | What balance must you fund, and when? | Does LC exposure convert into a loan? | | Inventory sale and collection | When does customer cash actually arrive? | When can any financing be repaid? | | Release or closure | When is collateral returned or applied? | When is capacity reusable? |

Do not assume expiry automatically means immediate collateral release. Outstanding presentations, deferred-payment obligations, reimbursement liabilities and the bank's release procedures may still matter.

For a deferred-payment LC, map the contractual maturity date against expected customer collections. Delaying settlement does not guarantee the goods will generate cash before payment is due.

Budget beyond the invoice: bank charges and financing

Request a written schedule of letter of credit bank charges for the proposed structure. Pricing can depend on amount, duration, credit risk, services and the banks involved.

Separate transaction fees from borrowing costs

Potential costs to investigate include:

• Issuance or commitment commissions, including minimum charges.
• Amendment fees for changes in amount, dates or wording.
• Advising and document-handling charges.
• Confirmation charges, where confirmation is requested and available.
• Discrepancy, reimbursement, messaging or other processing charges, where applicable.
• Interest and fees on approved import financing.
• Foreign-exchange conversion or hedging costs, if used.

Ask how each charge is calculated, when it is debited and whether extensions create additional commission periods. Not every listed charge applies to every LC.

Agree who pays each cost

Record the intended allocation of bank charges in the commercial agreement and ensure the LC instructions reflect it. Confirm how the bank handles charges allocated to another party if those charges remain unpaid.

Also budget for the opportunity cost of restricted cash. It may not appear as a bank fee, but it can leave you needing separate funding for normal operations.

Stress-test overlapping orders and shipment delays

The first LC may fit comfortably within your facility while the second does not. Capacity planning should cover all open commitments, not just the order currently being negotiated.

Using the hypothetical facility above, a second $80,000 LC would exceed the remaining $50,000 headroom by $30,000. Posting another cash margin would not solve that shortfall under the assumed utilization rules.

Run at least these scenarios:

• Overlapping purchases: the next LC must open before the first exposure closes.
• Shipment delay: an extension may be needed, leaving collateral restricted and facility capacity committed for longer.
• Amount increase: an amendment needs more headroom and potentially more margin.
• Slow customer collections: an import loan remains outstanding when the next order begins.

Possible responses include smaller purchase lots, revised ordering dates or a pre-approved facility increase. Additional equity may ease cash constraints, but does not itself increase an LC limit; the bank would need to approve any revised arrangement. Discuss options before signing rather than assuming they will be available on demand.

Manage foreign-currency exposure separately

An LC does not remove exchange-rate risk. If your sales receipts are in one currency and settlement is in another, an adverse movement can increase the cash needed to reimburse the bank.

Ask whether foreign-currency LCs are measured against a limit denominated in your home currency. If so, find out how revaluation affects headroom and whether the bank can require additional collateral.

Discuss hedging separately from LC issuance. A hedge may have its own credit requirements, collateral terms or costs if payment timing changes. Review its amount and settlement date with your treasury team or a qualified adviser rather than assuming the LC provides currency protection.

Use this pre-order bank checklist

When evaluating payment terms for imports, test affordability alongside the payment mechanism. No structure removes every commercial or performance risk.

Before committing to the order, obtain clear answers to these questions:

• [ ] Is the facility approved, documented and available for use?
• [ ] What limit and sublimit will this LC consume?
• [ ] What headroom remains after all existing commitments?
• [ ] What margin, security and guarantees are required?
• [ ] Can collateral requirements change during the transaction?
• [ ] When are fees payable, and who bears each charge?
• [ ] How will collateral be applied or released at settlement?
• [ ] What events release facility capacity, and how long does processing take?
• [ ] If payment is deferred, how will reimbursement be funded at maturity?
• [ ] Can the facility support overlapping orders, extensions and currency movements?

Frequently asked questions

Does every letter of credit require 100% cash collateral?

No. A bank may require full cash cover, a partial margin or other security under an approved facility. Requirements depend on its credit assessment and the transaction. Confirm the applicable terms before committing to the purchase.

Does a deferred-payment LC automatically include financing?

It provides time before payment is due, but does not automatically include an importer loan at maturity. Confirm when you must reimburse the bank, how that reimbursement will be funded and whether any separate financing has been approved.

When is LC cash collateral released?

Release depends on the bank's agreement and remaining exposure. Collateral may be applied to settlement or released after relevant obligations are discharged. Do not assume shipment, delivery or expiry alone makes the cash immediately available.

Can outstanding LCs reduce other borrowing capacity?

Yes, if they share an overall facility with loans, guarantees or other products. Ask for a current utilization breakdown and the bank's rules for converting LC exposure into settlement financing.

Match sourcing plans to confirmed capacity

The best time to discover a funding gap is before you commit to an order. Confirm usable limits, model restricted cash and settlement needs, and leave room for overlapping purchases.

Ready to build your next trade relationship? Explore sourcing and business listing opportunities on IMEX Center, and take a purchasing budget based on confirmed bank terms into your supplier discussions.