The documentary letter of credit for exporting olive oil

Q: What is a documentary letter of credit?

Short answer: a letter of credit (LC, or documentary credit, or L/C ) is a payment undertaking given by the buyer's bank , and not by the buyer themselves. The bank undertakes to pay the seller as soon as they present documents strictly compliant with the conditions written in the LC (invoice, bill of lading, certificate of origin, COA…).

Q: Confirmed or unconfirmed LC: which to choose?

This is the most important distinction for an exporter. - Unconfirmed (advised) LC : only the issuing bank (the buyer's) is committed. You carry the risk on that bank and on the buyer's country (political risk, non-transfer). - Confirmed LC : a Tunisian bank adds its undertaking. It pays you against compliant documents, even if the issuin

Q: How much does a letter of credit cost?

Direct answer: an LC generates bank charges on both sides — opening fees on the buyer's side, advising, confirmation, document handling and sometimes discrepancy fees on the seller's side. These fees depend on each bank, the amount and the duration; they must be quoted case by case and allocated clearly in the contract. Fee item Borne by

Q: What is a documentary letter of credit?

It's a payment undertaking given by the buyer's bank : it undertakes to pay the seller as soon as they present documents strictly compliant with the LC conditions (invoice, bill of lading, certificate of origin, COA…). Payment no longer depends on the buyer but on the compliance of the documents.

Q: Is the letter of credit the safest export payment?

It's the most secure method for the seller when it's irrevocable and confirmed : a bank, not the client, undertakes to pay. Only advance payment (deposit + balance before shipment) is even safer, but rarely accepted by the buyer. See the international payments guide.

Q: What does "confirmed LC" mean?

A Tunisian bank adds its own undertaking to pay to that of the issuing bank. Result: you're paid against compliant documents even if the buyer's bank or their country defaults. Confirmation neutralises the foreign bank and country risk, at a cost.

Q: What's the difference between an at-sight LC and a deferred LC?

The at-sight LC pays on presentation of compliant documents. The usance / deferred LC pays at an agreed maturity (for example 60 or 90 days after the B/L date): it's a payment term granted to the buyer, to be negotiated in the contract.

Q: What is a discrepancy in an LC?

A discrepancy is a difference, however minor, between a presented document and the LC conditions: date, wording, amount, type of certificate. It suspends payment until the buyer agrees to waive the reservation. It's the number one cause of blockage of an LC.

Q: Which documents must be presented to get paid?

Those exactly listed in the LC : typically commercial invoice, bill of lading (B/L), packing list, certificate of origin (EUR.1 for the EU), COA from an IOC-accredited lab, and depending on the sale an insurance certificate and a health certificate. See the export documentation.

You're selling bulk olive oil to a buyer you barely know, or your client requires a letter of credit? This guide explains simply how documentary credit (LC) works: the 8-step mechanics, the required documents, what an LC costs, the value of confirmation, and above all the documentary discrepancies that block payment. It's the safest payment tool in international trade — provided you don't get a single comma wrong. Tables, mistakes to avoid and FAQ included.

Free PDF cheat sheet: the 8 LC steps + the checklist of compliant documents + the list of frequent discrepancies on one page. Receive it by email »

What is a documentary letter of credit?

Short answer: a letter of credit (LC, or documentary credit, or L/C) is a payment undertaking given by the buyer's bank, and not by the buyer themselves. The bank undertakes to pay the seller as soon as they present documents strictly compliant with the conditions written in the LC (invoice, bill of lading, certificate of origin, COA…). Payment no longer depends on the buyer's goodwill, but on the compliance of the paperwork.

For a Tunisian olive oil exporter selling to a distant or little-known importer, the LC transforms a commercial risk into a manageable documentary risk: if the file is perfect, the bank pays. It's the most secure payment method, but also the most formalistic. The banking acronyms (LC, UCP 600, B/L, EUR.1…) are defined in the glossary.

How does a letter of credit work? (the 8 steps)

The LC involves four players: the buyer (applicant), their issuing bank, the seller's bank (advising, sometimes confirming) and the seller (beneficiary).

Contract: buyer and seller agree in the contract that payment will be made by LC (irrevocable, preferably confirmed).
Opening: the buyer asks their bank to open the LC in favour of the seller, listing the required documents and the deadlines.
Advising: the issuing bank forwards the LC to the seller's Tunisian bank, which advises it to the seller.
Verification: the seller reads through every clause of the LC and requests an amendment if a condition is unachievable (see below).
Confirmation (optional): a Tunisian bank can confirm the LC — it adds its own undertaking to pay, which neutralises the risk on the issuing bank and the buyer's country.
Shipment: the seller loads the goods (Radès/Sfax) within the shipment deadline set by the LC.
Presentation: the seller gathers the strictly compliant documents and hands them to their bank before the expiry date.
Payment: after verification and release of the documents (compliant or after acceptance of the reservations), the bank pays — at sight (LC at sight) or at maturity (LC usance / deferred).

The tipping point is not the shipment: it's the presentation of compliant documents. The whole guide revolves around this principle.

Documents required in an olive oil LC

The LC lists precisely the documents to be provided. For bulk olive oil, you typically find:

Document	Role	LC point of vigilance
Commercial invoice	Proves the sale and the amount	Wording, incoterm and amount identical to the LC
Bill of lading (B/L)	Proof of sea shipment	"Clean on board", dated before the latest shipment date
Packing list	Packing detail (flexitank/IBC/drums)	Weights and volumes consistent with invoice and B/L
Certificate of origin / EUR.1	Tunisian origin (0% EU quota)	Type of certificate exactly the one required
COA (certificate of analysis)	Quality of the lot (acidity, peroxide…)	IOC-accredited lab, values per lot
Insurance certificate	If CIF/CIP sale	110% of the CIF value (practice), from CIF onward
Health / phytosanitary certificate	Import country requirements	Depending on destination market

July 2026 data, to be confirmed with your bank and your freight forwarder. Prepare the file with the export document checklist and the export documentation guide.

Key takeaway: the LC doesn't ask for "good documents", it asks for exactly the ones it lists, in the format it imposes. A missing or non-compliant document = a suspended payment.

Sidebar: buyer side / seller side

The LC is not read the same way depending on your role.

Angle	What the LC changes for you	Reflex
Buyer (importer)	You tie up a credit line and pay bank charges, but you only pay against compliant documents	Open the LC early; don't overload it with unnecessary conditions
Seller (exporter who sells)	You're paid by a bank, not by a client, if your documents are perfect	Require an irrevocable and confirmed LC on a high-risk market
Exporter (Tunisia operations)	You must produce documents to the millimetre within the deadlines	Read through the LC before shipping; align B/L, invoice, EUR.1

Contract drafting rule: always specify "irrevocable LC", and if possible "confirmed" by a Tunisian bank. A revocable or merely advised LC does not offer the same security.

Confirmed or unconfirmed LC: which to choose?

This is the most important distinction for an exporter.

Unconfirmed (advised) LC: only the issuing bank (the buyer's) is committed. You carry the risk on that bank and on the buyer's country (political risk, non-transfer).
Confirmed LC: a Tunisian bank adds its undertaking. It pays you against compliant documents, even if the issuing bank defaults. You transfer the foreign risk onto a local bank.

Seller's golden rule: on a high-risk market or with an issuing bank you don't know, require confirmation. The extra confirmation cost is an insurance premium on collection.

The LC can also be at sight (payment on compliant documents) or usance / deferred (payment at maturity, for example 60 or 90 days after B/L) — a payment term granted to the buyer, to be negotiated in the contract.

How much does a letter of credit cost?

Direct answer: an LC generates bank charges on both sides — opening fees on the buyer's side, advising, confirmation, document handling and sometimes discrepancy fees on the seller's side. These fees depend on each bank, the amount and the duration; they must be quoted case by case and allocated clearly in the contract.

Fee item	Borne by (practice)	Nature
LC opening	Buyer	% of the amount, depending on issuing bank
Advising	Seller (or per contract)	Fixed fees
Confirmation	Often the seller	% according to country/bank risk, over the duration
Document handling / processing	Seller	Fixed fees
Discrepancy (non-compliant documents)	Seller	Penalty per discrepant set of documents

Amounts and percentages vary by bank and by risk — have them quoted by your bank before quoting. Factor these fees into your selling price and compare the landed cost with the export cost calculator.

Key takeaway: the discrepancy fees are avoidable — they only arise if your documents are not compliant. A perfect file means minimal LC cost.

Discrepancies: the real risk of the LC

Direct answer: in documentary credit, the bank pays on document compliance, not on the goods. A discrepancy is a difference, however minor, between a document and the LC: it suspends payment until the buyer agrees to waive the reservation. Discrepancies are the number one cause of blockage of an LC.

Frequent discrepancies to avoid:

Expiry or presentation date exceeded — the LC is dead, the bank is no longer bound to pay.
B/L dated after the latest shipment date set by the LC.
Wording that doesn't match between invoice, B/L and LC (name, address, goods description, incoterm).
Wrong certificate of origin (EUR.1 required but CO provided, or vice versa).
Amount presented higher than the LC amount.
Missing documents or in an insufficient number of copies.
Incoterm or port different from what is written in the LC ("FOB Radès" vs "FOB").

The LC regime follows international rules (UCP / UCP 600 of the ICC): the bank examines the documents with literal rigour. A comma, a date or a spelling error is enough to create a discrepancy — to be verified with your bank.

Mistakes to avoid with a letter of credit

Shipping before reading through the LC: if a condition is unachievable, an amendment should have been requested beforehand.
Accepting a revocable or unconfirmed LC on a high-risk market: you lose the main security.
Underestimating the deadlines: the shipment deadline and the expiry date are two distinct counters — respect both.
Neglecting document consistency: invoice, B/L, EUR.1 and packing list must "tell the same story".
Forgetting to quote the bank charges in the price: they eat into the margin if not planned for.
Confusing LC with a quality guarantee: the bank pays on documents, not on the actual compliance of the oil — hence the importance of the COA per lot.
Believing the LC replaces credit insurance: it secures this specific sale; COTUNACE credit insurance covers the non-payment risk more broadly.

Golden rules

Always require an irrevocable LC, and confirmed on a high-risk market.
Read through every clause of the LC on receipt and request an amendment if necessary — before shipping.
Align all documents with the exact terms of the LC (incoterm, port, description, amount).
Respect both deadlines: latest shipment date and expiry/presentation date.
Quote the bank charges (advising, confirmation, handling) into the selling price.
The LC secures one sale; combine it with credit insurance for a business flow.

Export document checklist » — check that your file is compliant before presentation.

FAQ — Documentary letter of credit

What is a documentary letter of credit?

It's a payment undertaking given by the buyer's bank: it undertakes to pay the seller as soon as they present documents strictly compliant with the LC conditions (invoice, bill of lading, certificate of origin, COA…). Payment no longer depends on the buyer but on the compliance of the documents.

Is the letter of credit the safest export payment?

It's the most secure method for the seller when it's irrevocable and confirmed: a bank, not the client, undertakes to pay. Only advance payment (deposit + balance before shipment) is even safer, but rarely accepted by the buyer. See the international payments guide.

What does "confirmed LC" mean?

A Tunisian bank adds its own undertaking to pay to that of the issuing bank. Result: you're paid against compliant documents even if the buyer's bank or their country defaults. Confirmation neutralises the foreign bank and country risk, at a cost.

What's the difference between an at-sight LC and a deferred LC?

The at-sight LC pays on presentation of compliant documents. The usance / deferred LC pays at an agreed maturity (for example 60 or 90 days after the B/L date): it's a payment term granted to the buyer, to be negotiated in the contract.

What is a discrepancy in an LC?

A discrepancy is a difference, however minor, between a presented document and the LC conditions: date, wording, amount, type of certificate. It suspends payment until the buyer agrees to waive the reservation. It's the number one cause of blockage of an LC.

Which documents must be presented to get paid?

Those exactly listed in the LC: typically commercial invoice, bill of lading (B/L), packing list, certificate of origin (EUR.1 for the EU), COA from an IOC-accredited lab, and depending on the sale an insurance certificate and a health certificate. See the export documentation.

How much does a letter of credit cost?

It generates fees on both sides: opening (buyer), advising, confirmation, document handling and possible discrepancies (seller). The amounts depend on the bank, the amount and the duration — to be quoted by your bank and factored into the price. Discrepancy fees are avoidable with a compliant file.

Does the LC guarantee the quality of the oil delivered?

No. The bank pays on the compliance of the documents, not on the actual goods. That's why the COA per lot (IOC-accredited lab) and a reference sample remain essential to avoid a quality dispute on arrival.

Who pays the letter of credit fees?

By practice, the buyer pays the opening and the seller the advising, confirmation and document handling — but this allocation is negotiated in the contract. Specify it clearly to avoid surprises.

Should you read through the LC before shipping?

Absolutely, it's the key step. Check that every condition is achievable (deadlines, documents, incoterm, port) before loading. If a clause is unachievable, request an amendment from the buyer; otherwise you risk a guaranteed discrepancy.

Does the LC replace credit insurance?

No, they are complementary. The LC secures one specific sale; COTUNACE credit insurance covers the non-payment risk on a business flow (usually 80-90% of the receivable), including for sales without an LC.

What rules govern letters of credit?

Documentary credits follow the UCP 600 of the International Chamber of Commerce (ICC), a framework applied by banks worldwide. Banks examine the documents in a literal and rigorous way — hence the importance of a perfect file.

Can an LC be modified after opening?

Yes, by amendment, but only with the agreement of all parties (buyer, banks, seller). Hence the value of spotting a problematic clause early and correcting it before shipping, rather than dealing with a discrepancy afterwards.

Secure your collection

You know how a letter of credit works, which documents to provide and which discrepancies to avoid. The next step: prepare a perfect documentary file and quote your sale including bank charges.

Export document checklist » then export cost calculator ».

Request a free quote — dated quotation, with suitable payment terms (confirmed LC, deposit + balance…). Drawer pre-filled "Letter of credit guide".

Free PDF cheat sheet (lead magnet): receive by email the "Letter of credit for olive oil" cheat sheet — the 8 steps, the checklist of compliant documents and the list of frequent discrepancies, ready to print. Simple sign-up (Brevo double opt-in), no spam. Receive the PDF cheat sheet »

To go further, read the international payments guide, the COTUNACE credit insurance guide and the export documentation guide.

July 2026 data, indicative and to be re-verified before any commitment. Sources: UCP 600 (International Chamber of Commerce), international trade banking practices, Tunisian foreign-exchange regulations (domiciliation, repatriation of proceeds).