Addressing an envelope is the one part of letter-writing where a small mistake has a real cost: the letter doesn't arrive. It's not complicated, but the details matter — placement, the right titles, and enough postage. Here's how to get it right for ordinary mail and the trickier cases like international and military addresses.
What you'll need
Before you write anything on the envelope, line up the basics (and the letter itself — see our letter guide):
- An envelope that fits your letter or card.
- A pen in black or blue ink — it stays legible and looks professional.
- The recipient's full details, double-checked, plus your own return address.
- A stamp that matches the letter's size and destination.
For postage, weigh the letter and check where it's going. In the US a standard letter takes a first-class stamp; for international mail, check the current rate with your postal service. If you want the letter drafted too, our free formal letter generator handles that part.
How to address an envelope
1. Write the recipient's address
This is the part that has to be exact. Include:
- Full name (with a title — Dr., Mr., Ms. — if one applies)
- Street address, including apartment or suite number
- City, state, and ZIP code
- Country, but only for international mail
It should look like this:
Dr. Jane Smith1234 Elm Street Apt 567Springfield, IL 62704USA
2. Add your return address
The return address lets the letter come back to you if it can't be delivered. It uses the same layout as the recipient's:
John Doe789 Maple AvenueMetropolis, NY 10001USA
3. Placement on the envelope
Put the recipient's address in the centre of the front, where it's easy to read. Put your return address in the top-left corner, and the stamp in the top-right. Leave a little space around each block so the post office can read it cleanly.
Special situations
International mail
For mail going abroad, write the country name in capitals on its own line at the bottom, and include your own country in the return address.
| Line | Example |
|---|---|
| Name | John Smith |
| Street address | 123 Queen St. |
| City / locality | London |
| Postal code | SW1A 1AA |
| Country | UNITED KINGDOM |
Military mail (APO/FPO/DPO)
Military addresses follow their own format — no city or country, but a unit and a designation instead.
| Line | Example |
|---|---|
| Name and rank | Sgt. John Doe |
| Unit / box number | Unit 2050 Box 4190 |
| Designation | APO |
| State code | AE |
| ZIP code | 09136 |
Business letters
For a formal letter, add the company name and follow standard business format.
| Line | Example |
|---|---|
| Name | Ms. Jane Doe |
| Company | Acme Inc. |
| Street address | 456 Elm St. |
| City / state / ZIP | Springfield, IL 62701 |
Addressing a title or role
When you're writing to a role rather than a named person, lead with the title.
| Line | Example |
|---|---|
| Title | Human Resources Manager |
| Company | XYZ Corporation |
| Street address | 789 Market St. |
| City / state / ZIP | San Francisco, CA 94103 |
Common mistakes to avoid
- Missing or unclear return address — without it, undeliverable mail can't come back to you.
- Recipient's address off-centre or crowded, which slows or misroutes delivery.
- Hard-to-read handwriting; if yours is messy, print a label.
- Skipping titles in formal mail, which can read as careless.
- Forgetting to note enclosures — add "Enclosures" with a list if you include extra documents.
- Guessing at postage. Weigh the envelope and check the rate so it doesn't bounce back.
- Skipping the spell-check on names and street names.
Final checklist before mailing
| Item | Check |
|---|---|
| Contents | Everything you meant to send is inside, and listed if there are enclosures |
| Recipient's address | Accurate, with the right title |
| Return address | Present and legible in the top-left |
| Postage | Weighed and stamped correctly |
| Greeting and closing | Right level of formality, properly punctuated |
| Final look | Readable, sealed, no stray marks |
Addressing an envelope feels like a minor detail, but it's the thing standing between your letter and the right doorstep. Whether you're sending a love letter or a business proposal, it's worth the extra thirty seconds to get it right.
