Open Account vs Letter of Credit: Which Is Better for Established Buyers?
Once a buyer has completed several successful orders with the same overseas supplier, payment terms often become the next major negotiation. The relationship may have started with a deposit, T/T before shipment or a letter of credit, but an established buyer may eventually ask for open account terms such as 30, 60 or 90 days.
For the buyer, open account can improve working capital, reduce banking friction and make repeat purchasing easier. For the supplier, however, it means shipping goods before collecting payment. A letter of credit, by contrast, keeps a bank-backed documentary payment structure in the transaction and can reduce some forms of payment risk for the seller.
The right choice is therefore not simply the payment method with the lowest fee. It depends on the strength of the commercial relationship, order value, buyer creditworthiness, country risk, supplier financing needs, documentation requirements and what each side is trying to protect.
If you are still comparing bank transfer structures with documentary credits, LC vs T/T: Which Payment Method Is Safer for Importers? explains the earlier-stage decision between LC and T/T from the importer's perspective.
What Does Open Account Mean in International Trade?
Under open account terms, the supplier ships the goods before payment is due. The buyer then pays the invoice at an agreed future date, commonly 30, 60 or 90 days depending on the relationship and industry.
This is attractive to buyers because cash does not leave the business before the shipment is produced and dispatched. Depending on the agreed due date, the buyer may even receive, inspect, distribute or sell part of the inventory before the supplier invoice becomes payable.
Open account therefore shifts more payment risk toward the supplier. The exporter is effectively extending commercial credit to the buyer and must be comfortable that the invoice will be paid in full and on time.
For an established buyer, that shift is often the point of the negotiation. A strong payment history, recurring purchase volume and transparent financial profile can turn previous performance into better commercial terms.
What Does a Letter of Credit Change?
A letter of credit, or LC, is a bank undertaking to pay the supplier when the required documentary conditions are met. The issuing bank acts on behalf of the buyer, while the supplier presents the documents specified in the credit.
An LC may require documents such as a commercial invoice, packing list, transport document, certificate of origin or inspection certificate. Payment can be structured at sight or, depending on the credit, at a future maturity date.
The important distinction is that an LC creates documentary control, not physical control over the goods. Banks examine documents rather than the actual product, so an LC does not replace specifications, inspections, quality control or a strong purchase contract.
That distinction matters for experienced procurement teams. A perfectly compliant document set can still accompany goods that later create a commercial dispute. Payment security and product-performance risk must therefore be managed separately.
Why Established Buyers Often Prefer Open Account
Open account is especially attractive when the buyer and supplier already know how each other performs. After a history of successful deliveries and on-time payments, repeatedly paying bank fees and preparing documentary credits for routine orders can begin to add cost without adding the same level of practical value it provided at the beginning of the relationship.
For the buyer, the most obvious benefit is cash flow. Money remains available for inventory, payroll, freight, customs duties, marketing or other operating expenses until the invoice reaches its due date.
Open account can also simplify repeat ordering. The procurement team does not need to open or amend an LC for every standard shipment, and the supplier does not need to prepare documents primarily to satisfy bank conditions before receiving payment.
That reduced friction can become important when purchasing frequency increases. A payment structure that was manageable for two large orders per year may be inefficient when the relationship grows into monthly shipments.
The Financial Benefit Is Bigger Than the Bank Fee
Buyers sometimes compare open account and LC only by looking at bank charges. That misses the larger working-capital effect.
Consider a buyer placing regular international orders with a long production and shipping cycle. Under an advance-payment or tightly structured LC arrangement, cash may be committed well before the inventory begins generating revenue. Under open account terms, payment occurs later in the cycle.
The difference can reduce the amount of working capital tied up in each purchase. For a buyer that imports continuously, even a 30-day improvement in payment timing can matter more operationally than the direct banking fee saved.
However, buyers should not assume that open account is automatically cheaper in every quotation. A supplier may include the cost of financing receivables, credit insurance, factoring or additional risk in the product price. The correct comparison is the total commercial cost, not just the invoice due date.
This is one reason payment terms should be normalized when comparing quotations. Three Suppliers Quote the Same Product: Which Offer Is Actually the Best? explains why price, Incoterms, payment timing, lead time and supplier risk should be compared together rather than as separate numbers.
Open Account Is Not the Same as Unlimited Credit
Established buyers sometimes treat open account as a permanent entitlement once the relationship reaches a certain size. Suppliers may see it differently.
A supplier can offer open account while still setting a credit limit, requiring overdue invoices to be cleared before new shipments, reducing terms during periods of higher risk or asking for updated financial information.
The supplier's willingness to extend credit may also depend on order concentration. A buyer that suddenly doubles monthly volume is asking the supplier to finance a much larger receivable balance, even if the payment history remains perfect.
For procurement teams, the practical lesson is to negotiate both the payment period and the credit capacity. Net 60 terms are much less useful if the supplier's credit limit only covers one small shipment at a time.
When a Letter of Credit Still Makes Sense
An established relationship does not make an LC obsolete. There are transactions where the additional structure remains useful.
A buyer may still prefer an LC when the order value is unusually large, the product is being purchased from a new factory within the supplier group, the destination or banking environment has changed, the production cycle is long, or the transaction requires specific documentary conditions.
The supplier may also request an LC when it cannot comfortably carry the buyer's receivable exposure. This can happen even with a trustworthy buyer if the order is large relative to the supplier's own balance sheet.
In other words, relationship history is only one part of the risk calculation. Transaction size and financing capacity matter too.
Country and Banking Risk Can Change the Decision
A buyer may have an excellent payment history while the surrounding commercial environment becomes less predictable. Currency controls, banking disruption, political instability or restrictions on cross-border transfers can affect the supplier's willingness to rely purely on an invoice due 60 days later.
In these situations, the parties may decide that a bank-backed structure is worth keeping for certain orders even though they use open account for routine trade elsewhere.
The reverse can also happen. A supplier may initially require an LC because it has limited information about the buyer. After years of reliable trading and a clear credit record, the same supplier may become comfortable moving ordinary shipments to open account while reserving LCs for exceptional transactions.
This is why payment methods should be reviewed as the relationship changes instead of being copied automatically from the first purchase order forever.
Payment Risk and Product Risk Are Different
For the buyer, one common mistake is assuming that an LC protects against every supplier problem. It does not.
An LC can condition payment on documentary compliance, but banks are not inspecting dimensions, testing materials, checking workmanship or confirming that every unit matches the approved sample. Those controls belong in the commercial sourcing process.
Open account can actually give the buyer more commercial leverage after shipment because payment is still outstanding. But that advantage should not encourage weak quality control. If defective goods arrive, the buyer may still face replacement delays, production stoppages, customer claims, storage costs or disputes over responsibility.
Regardless of payment method, technical specifications, inspection rights, acceptance criteria, warranty obligations and dispute procedures should be agreed clearly before production.
Can Open Account Be Combined With Risk Protection?
Yes. Moving away from a traditional LC does not mean the supplier must accept the entire non-payment risk without protection.
Exporters may use tools such as export credit insurance, factoring or receivables finance to support open-account sales. Another possibility in an established relationship is a standby letter of credit, which can provide a backstop if the buyer fails to pay as agreed while allowing routine invoices to operate on open-account terms.
These structures can be useful because they separate the day-to-day commercial payment process from the supplier's risk-mitigation strategy. The buyer receives simpler terms, while the supplier may still have a way to manage receivable exposure.
The cost of that protection does not disappear. It may be paid directly by the supplier, reflected in the selling price or negotiated between the parties. Buyers should therefore ask whether a change in payment structure also changes the quoted product price.
What Should You Negotiate Before Switching to Open Account?
A good open-account agreement needs more detail than simply writing “Net 60” on a purchase order.
First, define exactly when the payment period starts. It may run from invoice date, shipment date, bill of lading date, goods receipt or another agreed milestone. A 60-day term starting from shipment is materially different from 60 days after receipt at the buyer's warehouse.
Second, agree the currency, bank charges, payment method and treatment of disputed amounts. The contract should also make clear whether an unresolved claim allows the buyer to withhold the whole invoice or only the disputed portion.
Third, understand the supplier's credit limit and what happens when outstanding invoices approach it. A buyer should know whether new orders continue to ship normally or whether they will be placed on hold until earlier invoices are paid.
Finally, establish a process for reviewing the terms. If purchase volume grows substantially, both parties may need to increase the credit limit or change the payment period rather than letting operational problems appear without warning.
How Should an Established Buyer Ask for Better Terms?
The strongest argument is evidence, not pressure. A buyer asking to move from LC to open account should be ready to show why the supplier's risk has changed.
Useful evidence can include a record of on-time payments, increasing annual purchase volume, stable order forecasting, clear company information and a willingness to provide reasonable credit documentation when appropriate.
The buyer can also propose a gradual transition. For example, the parties may begin with Net 30 on a limited credit line, then extend the term or increase the limit after several successful cycles.
This staged approach is often easier for a supplier to approve than an immediate request to move all purchasing from bank-controlled terms to Net 90.
Do Not Trade a Lower Price for Worse Payment Terms Without Measuring It
Payment terms have economic value. A supplier offering a slightly higher unit price with Net 60 may be more attractive than a lower-priced supplier requiring a large deposit and full balance before shipment.
Likewise, a supplier may offer a discount for earlier payment. Procurement teams should calculate whether that discount is worth the working-capital cost and the additional exposure created by paying sooner.
The important point is to compare offers on a consistent basis. Product price, freight basis, duties, payment timing, financing cost, quality risk, lead time and supplier reliability all influence the real cost of the purchase.
Which Is Better for an Established Buyer?
For a creditworthy buyer with a reliable long-term supplier, stable shipment history and predictable commercial environment, open account is often the more efficient structure for routine repeat business. It improves buyer cash flow, reduces documentary administration and can make frequent purchasing easier.
A letter of credit remains valuable when the transaction itself creates additional risk. Large one-off orders, unusual destinations, changing banking conditions, new production arrangements or a supplier's need for stronger payment assurance can all justify keeping an LC.
The best outcome is often not choosing one method permanently. Mature buyer-supplier relationships can use open account for normal recurring orders and retain LC or another risk-control mechanism for exceptional transactions.
Established buyers should treat better payment terms as part of supplier relationship management. The goal is not simply to delay payment, but to create a structure that improves working capital without making the supplier financially uncomfortable or introducing new delivery risk.
Buyer Checklist Before Changing Payment Terms
- How long have we traded with this supplier?
- Have both sides consistently met payment and delivery obligations?
- What is the normal order value and how much receivable exposure would the supplier carry?
- When exactly does the open-account payment period begin?
- Is there a credit limit in addition to the payment term?
- Will the supplier change the product price if it finances our receivable?
- Would export credit insurance, factoring or a standby LC support the arrangement?
- Do country, currency or banking conditions justify retaining an LC?
- Are product inspection and acceptance controls strong enough regardless of payment method?
- Should routine orders and exceptional high-value orders use different payment structures?
Sourcing Notes
Open account is usually a sign that commercial trust has increased, but it should still be negotiated as a credit arrangement rather than treated as a casual invoice preference. Buyers gain working-capital flexibility, while suppliers take on additional receivable exposure.
For established relationships, the most durable arrangement is one where the payment structure matches both companies' financial capacity. Buyers should seek better cash flow and simpler purchasing, but terms that place excessive pressure on the supplier can eventually appear elsewhere through higher prices, delayed production, reduced credit limits or reluctance to accept larger orders.
