Triplicate

Triplicate Meaning in Trade: What "In Triplicate" Means for Invoices and Letters of Credit

"In triplicate" means three of the same document, so "commercial invoice in triplicate" asks for three invoices. Under a letter of credit subject to UCP 600, every document the credit asks for needs at least one original, and a request for a document "in duplicate", "in two fold" or "in two copies" is met by at least one original and the rest as copies, unless the document itself says otherwise (Article 17). Bills of lading and insurance documents are stricter: if more than one original is issued, all of them must be presented.

Checked against official sources: 2026-10

At a glance

In duplicate, triplicate, quadruplicateTwo, three or four of the same document
Originals under a letter of creditAt least one original of each document the credit asks for (UCP 600 Art. 17(a))
"In triplicate" or "in 3 copies" under UCP 600At least one original and the rest copies, unless the document itself indicates otherwise (Art. 17(e))
What a bank treats as an originalA document with an apparently original signature, mark, stamp or label of its issuer, unless it says it is not an original (Art. 17(b))
Credit asks for copiesOriginals or copies are both accepted (Art. 17(d))
Bill of ladingThe sole original or, if more than one was issued, the full set shown on the B/L, such as 3/3 (Art. 20(a)(iv))
Insurance documentIf it shows more than one original was issued, all originals must be presented (Art. 28(b))
Commercial invoice signatureNeed not be signed under a letter of credit (Art. 18(a)(iv))

Duplicate, triplicate and quadruplicate

The words come from Latin verbs for doubling, tripling and quadrupling: a document "in duplicate" is made twice, "in triplicate" three times and "in quadruplicate" four times. In trade they appear in letters of credit, buyers' instructions and some official forms, for example "signed commercial invoice in triplicate" or "packing list in 3 copies". Triplicate, the free document generator on this site, takes its name from this phrase.

The phrase says how many documents are needed, not how many must be originals. Under a letter of credit, UCP 600 answers that question; outside a letter of credit, the contract or the instruction does.

Originals and copies under a letter of credit (UCP 600 Article 17)

Most letters of credit are issued subject to the ICC Uniform Customs and Practice for Documentary Credits (UCP 600). Article 17 sets the rules on originals and copies:

Bills of lading and insurance: the full set

Carriers often issue a bill of lading in a set of three originals, shown on the bill as "3/3" or as the number of originals issued. Once one original is surrendered to take delivery at destination, the others are void, which is why a buyer or bank holding only part of the set does not control the goods. Under UCP 600 Article 20(a)(iv), a bill of lading presented under a letter of credit must be the sole original or, if issued in more than one original, the full set as indicated on the bill. Article 28(b) applies the same rule to insurance documents: if a policy or certificate shows that it was issued in more than one original, all originals must be presented.

If a credit asks for only part of the set, for example two of three originals with the third sent directly to the buyer, follow the credit exactly, and remember that the original sent to the buyer can be used to take delivery. Telex release and sea waybills avoid paper originals altogether; see Triplicate's note on telex release, sea waybills and original bills of lading.

How to make an original and a copy

An original does not need a special form. Under Article 17, a document signed or stamped by hand, printed on the issuer's letterhead or marked "Original" is normally treated as an original, unless it says it is a copy. A commercial invoice under a letter of credit need not be signed (Article 18(a)(iv)), but signing and stamping the originals removes any doubt. Mark the copies "Copy".

Make every original and copy from the same final version, so that numbers, dates, quantities and amounts match. Triplicate's generator makes the proforma invoice, commercial invoice and packing list from one form and can print each page marked "ORIGINAL" or "COPY", for example one original and two copies for "in triplicate".

Outside letters of credit

UCP 600 applies only to credits that incorporate it. For documentary collections, open account sales and customs formalities, the number of originals and copies is whatever the contract, the buyer, the collection instruction or the authority asks for. Ask exactly how many originals and copies of each document are needed, and whether scanned or electronic documents are accepted, before you print and courier them.

Step by step

  1. List every document the letter of credit or instruction asks for, with the number of originals and copies for each.
  2. Read "in duplicate", "in triplicate" or "in 3 copies" under UCP 600 as at least one original and the rest copies, unless the credit asks for originals.
  3. Ask the carrier and insurer how many originals they will issue, so that you can present the full set the credit requires.
  4. Make the originals look original: sign or stamp them, use your letterhead or mark them "Original"; mark the copies "Copy".
  5. Print all originals and copies from the same final version and check that numbers, dates and amounts match before presenting them.

Documents you usually need

Common problems and how to avoid them

The credit asks for a "commercial invoice in triplicate" and the seller presents three photocopies.

What to do: At least one must be an original: sign or stamp it, use your letterhead or mark it "Original".

The bill of lading shows 3/3 but only two originals are presented, because one went to the buyer.

What to do: Present the full set unless the credit expressly allows part of it, such as two of three originals with one sent to the buyer.

The insurance certificate says it was issued in duplicate, but only one original is presented.

What to do: Present all originals issued, or ask the insurer to issue the certificate in one original.

The copies were printed from an earlier draft and show a different quantity from the original.

What to do: Print every original and copy from the final version and compare them before presentation.

Sources

  1. ICC Uniform Customs and Practice for Documentary Credits (UCP 600), Articles 17, 18, 20 and 28 International Chamber of Commerce (ICC)
  2. Documentary credits: Rules, guidelines and terminology ICC Academy
  3. MSC Bill of Lading: front and terms and conditions MSC Mediterranean Shipping Company

Rules change often. This note is practical guidance based on the sources above, not legal advice. Confirm current requirements with the authority, your importer or a licensed customs broker before you ship.

Share with a colleagueWhatsAppLinkedInX

Trade notes

Had this problem? Share how you solved it

Tell us what happened and what worked. We read every message. With your permission we may add your case to this note, without your name or company.

Common questions

What does "in triplicate" mean?

Three of the same document. Under a letter of credit subject to UCP 600, a commercial invoice "in triplicate" is met by at least one original and two copies, unless the document itself says otherwise.

What is the difference between duplicate and triplicate?

Duplicate means two of the same document and triplicate means three; quadruplicate means four. Neither word by itself says how many must be originals.

What does "full set of original bills of lading 3/3" mean?

All the originals the carrier issued, here three of three. Under UCP 600 Article 20, a bill issued in more than one original must be presented as the full set shown on it, unless the credit asks for less.

Can I present more originals than the credit asks for?

For a request such as "in triplicate" or "in 3 copies", yes: UCP 600 Article 17(e) asks for at least one original, so more originals also meet it. If the credit asks for copies, originals are accepted too.

Do the copies need to be signed?

No. It is the originals that must appear original. Copies only need to match the originals; marking them "Copy" avoids confusion.

More free tools

Triplicate is free and keeps getting better. Found it useful? Support Triplicate ♥