How Do You Indicate Enclosures in a Letter? | No Mixups

You can write a solid letter and still end up with a mess if the extra pages go missing or land on the wrong desk. An enclosure line fixes that. It’s a short note placed under your signature block that tells the reader what else is inside the same envelope.

This article shows where the enclosure line goes, what wording works, and how to handle one enclosure, multiple enclosures, and email attachments. You’ll also get copy-ready lines you can paste into a business letter.

Indicating enclosures in a letter for clean delivery

An enclosure is a separate document that travels with your letter in the same mailing. Think forms, resumes, invoices, receipts, transcripts, certificates, or signed releases. The enclosure line is the label that warns the reader to expect those items.

It does two jobs at once. It helps the recipient check that nothing is missing. It also helps you prove what you intended to send if someone later claims a document wasn’t included.

Most offices treat enclosures as part of standard business letter format. Purdue’s business letter format notes that extra notations, including enclosures, sit under the signature area in the letter’s footer. See Purdue OWL’s basic business letter format for the common placement.

Situation	Enclosure line to type	What it signals
One document, named	Enclosure: Resume	Reader should find one item
One document, generic	Enclosure	One item exists, name not listed
Two or more, counted	Enclosures (3)	Exact document count expected
Two or more, listed	Enclosures: Resume; Portfolio; References	Each item identified by name
Loose pages plus a form	Enclosures (2): Contract; Appendix	Two separate documents, not pages
Application letter with resume	Enclosure: Resume	Resume travels with the letter
Sensitive or legal items	Enclosures (2): Signed Release; ID Copy	Creates a clear record of contents
Email that includes files	Attachment: Invoice.pdf	File is attached, not paper-clipped

How Do You Indicate Enclosures in a Letter? Placement that works

Put the enclosure line below your signature block, after your typed name and any job title. Keep it aligned to the left margin in block format. Leave one blank line above it so it reads as a separate note.

If your letter also uses a copy line (cc) or reference initials, the enclosure line still belongs near the bottom. A common order is: enclosure line first, then copy line, then any reference initials. Some offices flip enclosure and cc; pick one pattern and stay consistent inside your organization.

Government style guidance treats enclosure notation as optional, yet it gives clear models for single and multiple enclosures and explains when to list items by name. The Government of Canada enclosure notation page lays out these options in plain language.

Choose a label that matches the delivery

Use “Enclosure” or “Enclosures” for paper items inside the envelope. Use “Attachment” or “Attachments” for emailed files. If you’re sending both a printed letter and a file link, write the enclosure line for the printed packet, then mention the link in the body where the reader will see it.

Avoid mixing labels. If you write “Enclosure” on an email, the reader may look for a paper packet that does not exist. If you write “Attachment” on a mailed letter, the reader may think you forgot to include a file.

Count documents, not pages

When you write “Enclosures (3),” you’re counting separate documents. A five-page contract is one enclosure. A contract plus a one-page addendum is two enclosures. This is the cleanest way to prevent “I got the letter but not the form” back-and-forth.

If the reader must know exactly which documents were included, list them. Listing takes a few extra seconds, but it reduces disputes.

Wording options that stay formal without sounding stiff

The enclosure line is short, so small wording choices matter. Stick to standard labels that mailrooms and admins recognize. These are the patterns that rarely cause confusion:

• Enclosure: for one named item.
• Enclosures: for multiple named items.
• Enclosures (2): for a count, with or without names.
• Attachment: for one file in email.
• Attachments (3): for multiple files in email.

You may see abbreviations like “Enc.” or “Encl.” in older templates. They still show up in some industries. In mixed settings, the full word reads clearer.

When listing, keep names short

List items the same way the recipient will file them. Use the document’s title, form number, or a short label. Skip long descriptions that belong in the body of the letter.

Use separators that scan well, such as semicolons or line breaks. If your list runs long, switch to a compact list under the enclosure label.

Step by step: Add an enclosure line in a standard business letter

If you’ve ever asked yourself, “how do you indicate enclosures in a letter?” this quick build is the answer. You can follow it for block, modified block, and most letterhead templates.

1. Finish the body of your letter and type the closing line (such as “Sincerely,”).
2. Leave space for your handwritten signature if you’re printing the letter.
3. Type your name on the next line. Add your title on the line under your name if you use one.
4. Leave one blank line.
5. Type the enclosure line: “Enclosure: …” or “Enclosures (n): …”.
6. Insert a copy line under that only if you’re sending copies to other people.
7. Before sealing the envelope, match the enclosure line to what you’re actually including.

This last check is the part most people skip. It’s also where mistakes start, especially when you print a letter, then grab documents from a stack that changed during the day.

Quick placement sketch

In a printed letter, the enclosure note sits in the footer area, below your typed name. It reads like a label, not like part of the message. That visual separation helps the reader spot it fast when they’re scanning a pile of mail.

Pack enclosures so they stay together

Paperwork can slide out when an envelope is stuffed or when pages are loose. Keep each enclosure as one unit: staple multi-page items, clip thick packets, and place the stack behind the letter so the letter stays atop. If you use a window envelope, check that the addressee line shows through after you add the packet. For tracked mail, put the tracking number in the body, not the enclosure line.

Enclosures vs attachments: What changes in email

Email still benefits from a clear attachment note, even when the paper clip icon shows files. People forward messages, save PDFs, and download items to shared drives. A plain “Attachment: Invoice.pdf” line near the end of the email body reduces “Which file was the invoice?” replies.

Use file names that match what you list. If the file name is “Scan_0047.pdf” and your note says “Attachment: signed contract,” your reader has to guess. Rename files before you send them.

When you send a paper letter plus a file

Some offices mail a signed original and also email a scan. In that case, treat the mailed packet as the enclosure and treat the email file as the attachment. Keep the wording straight in each channel.

Inside the letter body, you can add one sentence like: “A scanned copy will also be emailed to your office contact.” Keep the enclosure line for the documents in the envelope only.

Common mistakes that cause missing documents

Most enclosure problems come from habits, not bad intent. Here are the slip-ups that show up again and again, plus the fixes that stop them.

Typing “Enclosures” when you included one item

This looks minor, but it can waste time. The reader hunts for a second item, then emails you. Use the singular label when you include one document, or use a count like “Enclosures (1).”

Counting pages instead of documents

“Enclosures (12)” can scare a reader when all you meant was one 12-page report. If you want to warn about page volume, say it in the body: “The report is 12 pages.” Keep the enclosure line for document count.

Listing items that are not actually inside the envelope

This happens when the letter template has an old enclosure list that someone forgot to edit. Fix it by matching the enclosure line to the final packet right before you seal it. If you handle mail in batches, do that check per letter, not at the end of the run.

Hiding the enclosure line in the last paragraph

A sentence like “I’ve enclosed my resume” is fine in the body, but it does not replace the enclosure line. People skim. The enclosure note under the signature is the flag that stands out.

Reference lines and copies: Keep the footer tidy

Many business letters carry a few extra lines under the signature area. When you use more than one, spacing and order keep it readable.

These items are common in the same footer block:

• Enclosure line to signal extra documents in the same mailing.
• Copy line (cc:) to show who else receives a copy.
• Reference initials for the writer and typist in offices that track drafts.

Keep each item on its own line. Use a blank line between the signature block and the first notation. After that, keep the notations single-spaced so they read as one tidy footer.

Copy ready enclosure lines for real situations

If you want plug-and-play wording, use the lines below. Swap in your document names and counts. Then check the packet before you send it.

Use case	Line to copy	Best when
Job application	Enclosure: Resume	One document travels with an application letter
Job packet	Enclosures (2): Resume; References	You’re sending two separate documents
Invoice mailing	Enclosure: Invoice #1047	Billing needs a clear identifier
Payment proof	Enclosures (2): Receipt; Bank Slip	Two proofs are enclosed
School request	Enclosure: Transcript Request Form	A form must be found and processed
Medical records request	Enclosures (2): Authorization Form; ID Copy	Processing depends on both items
Legal notice packet	Enclosures (3): Notice; Exhibit A; Exhibit B	Each document has its own label
Email with files	Attachments (2): Contract.pdf; W9.pdf	Readers save files to a shared folder

Final send check that saves rework

Before you seal an envelope or hit send, do a simple match: enclosure line, document names, and actual contents. Set the letter on top of the stack, then place each enclosure under it in the listed order. If your enclosure line uses a count, count the documents once. Then you’re done.

If you’re still asking “how do you indicate enclosures in a letter?” after reading this, use the safest default: type “Enclosure:” plus the document name under your typed name. It’s clear, it’s standard, and it keeps your letter from being separated from the paperwork it depends on.