Start with the recipient’s name
Add the street address (include apartment/suite/unit number)
Include city, state/province, and postal/ZIP code
Add the country name (if sending internationally)
Use the correct order for your country’s addressing format
Keep lines short and readable
Use standard abbreviations where appropriate (e.g., “St”, “Ave”, “Apt”)
Place the address block near the top of the letter or on the mailing label
Include a return address on the envelope/label (your name and address)
Use consistent formatting and correct spelling
Verify the final format against the carrier’s guidelines for your destination