Letter of credit discrepancies: small document errors can delay export payment

A letter of credit can give an exporter strong payment security only if the documents comply with the credit. Banks examine documents rather than the physical goods, so a wrong date, missing certificate or inconsistent transport document can create a discrepancy even when the exporter delivered exactly what the buyer wanted.

Read the credit together with UCP 600 and current ISBP practice

International documentary credits are commonly issued subject to ICC UCP 600. ICC's current International Standard Banking Practice publication, ISBP 821, provides detailed guidance on how banks examine documents under UCP 600.

The exporter should review the credit as soon as it is issued and request amendments before shipment if any condition is impossible or unclear.

Late shipment, expiry and presentation timing are common problems

ICC's 2026 discrepancy guidance notes that presentation after the allowed period or after credit expiry makes documents non-compliant. UCP 600 generally imposes a maximum presentation period after shipment where transport documents are involved, subject to the credit terms.

Build document preparation backward from the latest presentation date. Waiting for an original certificate after shipment can consume the remaining time quickly.

Invoice descriptions and values must fit the credit

The commercial invoice needs to comply with the credit's goods description, amount and other required details. Other documents do not always need to repeat the full description word for word, but the overall presentation must not conflict.

Use a documentary-credit checklist rather than allowing sales invoices to be produced through the ordinary domestic template without review.

Bills of lading and transport documents create frequent discrepancies

Check shipment date, ports, freight terms, consignee, notify party, clean-on-board notation and the number of originals required. Small transport-document errors can be impossible to fix once the vessel has sailed.

Give freight forwarders the LC requirements before shipment and review draft bills of lading before originals are issued where possible.

Required certificates need the right issuer and signature

ICC guidance highlights missing or incorrectly issued certificates of origin, inspection, quality and other documents as common discrepancy sources.

Confirm who is authorised to issue each certificate and whether signatures, dates or specific statements are required. Do not assume any Chamber of Commerce document will satisfy the exact credit wording.

Run a pre-presentation review before documents reach the bank

Have a trade-finance specialist or experienced document checker compare every required document to the credit and amendments. Create a discrepancy log and correct what can be fixed before presentation.

If a discrepancy cannot be corrected, understand the waiver risk. The buyer can agree to waive a discrepancy, but relying on buyer goodwill weakens the payment security that the letter of credit was supposed to provide.

Worked example: an exporter ships on 1 June under a credit requiring presentation within 21 days after shipment and before 30 June expiry. The documents arrive from the inspection company on 24 June. Even though shipment was correct, the presentation can already be outside the stated period. Documentary timing needs to be managed as tightly as physical logistics.

Create one document matrix with credit clause, required document, issuer, number of originals, latest date and responsible employee. Freight forwarders, chambers, insurers and inspection companies should receive their requirements before shipment rather than being asked to recreate wording after originals are issued.

Track discrepancy frequency by cause. If most refusals come from certificates of origin, the exporter has a process problem with that document. If they come from buyer-added clauses, sales teams may be accepting credits that are too complicated. The objective is to reduce discrepancies before presentation, not become better at arguing waivers.

Use dual review for high-value presentations. One employee prepares the package and another checks the credit clause by clause. Familiarity can make the preparer overlook repeated wording errors, while an independent reviewer is more likely to spot an inconsistent date or missing original.

Keep the discrepancy outcome with the customer record. If a buyer repeatedly issues credits containing impractical conditions or refuses reasonable waivers, sales should adjust future payment terms. Documentary quality is part of customer risk, not only a trade-finance administrative issue.

Build discrepancy cost into commercial decisions. A bank discrepancy fee may be small compared with the delayed cash, demurrage, buyer leverage and staff time created by non-compliant documents. If a £500,000 shipment is delayed two weeks because of one certificate error, working-capital cost can exceed the bank fee many times over.

Review amendments with the same discipline as the original credit. A late amendment can change shipment date, document wording or amount and make previously prepared documents wrong. Maintain one controlled current version of the credit so freight, sales and finance are not each working from different instructions.