The recipient address on a business envelope is not decoration. It's a routing instruction, and the postal system reads it before any human does. One misplaced line, an absent suite number, or an incorrectly abbreviated state can delay your letter by days or send it back stamped "return to sender." Getting the format right costs you nothing. Getting it wrong can cost you a deal.
What goes on the recipient address block
A standard business envelope recipient address sits in the lower centre of the envelope face and runs in this order:
- Line 1: recipient's name (or attention line if routing to a role)
- Line 2: company name
- Line 3: street address, including suite, floor, or unit number
- Line 4: city, state or province, and postcode
- Line 5: country (for international mail only)
Every line is left-aligned. Nothing is centred within the block itself. The block as a whole sits roughly centred on the envelope face, but the internal alignment is flush left throughout.
How to write each line correctly
The name line
Write the recipient's full name on the first line. Include a courtesy title if you know the person uses one: Mr, Ms, Dr, Prof. Don't guess. If you don't know the person's preferred title, use the full name without one. "Jordan Calloway" is always safer than a wrong title. If you're writing to a job role rather than a named individual, an attention line on the envelope handles the routing cleanly.
The company name line
Write the company name exactly as the company writes it. Don't abbreviate "International" to "Intl" if the company's own letterhead spells it in full. Don't drop "Pty Ltd" or "Inc." if it's part of the legal name. The company name line sits directly below the recipient's name, not above it. Placing the company above the person's name is a common mistake that postal scanners and human sorters both find confusing.
The street address line
The street address line carries the building number, street name, and any suite or floor designation. Put the suite or floor reference on the same line as the street address, not on its own line. "Level 4, 200 George Street" is correct. Splitting it into two separate lines wastes space and can cause automated sorting errors.
Use abbreviations only when the postal authority in the destination country expects them. In the United States, USPS addressing guidelines recommend standard abbreviations like "ST" for Street and "AVE" for Avenue when space is tight. In Australia, Canada, and the UK, the convention is to write the street type in full on a standard business envelope.
The city, state, and postcode line
This line follows a strict sequence: city name, then state or province abbreviation, then postcode. No punctuation sits between the state abbreviation and the postcode in US addressing. Write "New York NY 10001" not "New York, NY, 10001." In the UK, the postcode goes on its own separate line beneath the city. In Australia, the state abbreviation and postcode sit on the same line as the city with a single space between them: "Sydney NSW 2000."
Know the convention for the destination country. A UK address formatted to US conventions will still arrive, but it signals carelessness to the recipient before they even open the envelope. If you're dealing with international correspondence regularly, the differences in international address formats are worth knowing systematically.
The country line
For international mail, add the destination country on its own line at the bottom of the address block. Write it in full capital letters: "AUSTRALIA" or "UNITED KINGDOM." Don't use country codes like "AU" or "UK" on the final line. Postal systems in different countries read full country names more reliably than codes, and courier services require the full name for customs documentation.
Formatting the block on the envelope
The recipient address block belongs in the lower half of the envelope face, centred horizontally on the envelope. Leave at least 15mm of clear space below the address block for postal barcodes. Postal scanning equipment prints barcodes in this zone. Text printed in the barcode zone causes processing errors and delays.
Use a readable font at 10 to 12 points. Times New Roman, Arial, and Calibri all work. Avoid decorative fonts and italic type. All-caps formatting is acceptable and preferred by many postal authorities for machine readability, though mixed case is fine for standard domestic mail.
Don't use punctuation after abbreviated lines. "Suite 4." with a trailing period is technically harmless, but it looks sloppy and runs against postal addressing conventions in every major English-speaking country.
Envelope address vs inside address: keep them consistent
Whatever name, company name, and address you put on the envelope should match the inside address in your letter exactly. Inconsistencies between the two raise questions. A letter addressed to "Jordan Calloway, Operations Director" on the envelope but "Jordan Calloway, Head of Operations" inside the letter suggests either carelessness or that the letter was prepared for someone else. Consistency signals that the correspondence was written deliberately, for this specific person. The inside address format follows its own conventions, covered in detail in the guide to how to write a business letter inside address.
Common mistakes to avoid
Writers most often go wrong in four places. They put the company name above the recipient's name instead of below it. They omit the suite or floor number, sending mail to a building with no specific destination inside it. They use an outdated postcode because they copied the address from a letter they received two years ago without checking. And they skip the country line on international mail entirely, assuming the postcode alone is enough. It isn't. Verify the postcode on every letter you send to a new address. Postcodes change when postal districts are restructured, and a wrong postcode on an outgoing letter is one of the harder mistakes to catch before it causes a delay.
The recipient address block takes thirty seconds to format correctly. It's worth those thirty seconds on every envelope you send.