Write the recipient’s name on the front center of the envelope
Write the street address below the name
Write the apartment, suite, or unit number if needed
Write the city, state, and ZIP code on the next line
Write the return address in the top left corner
Place the stamp in the top right corner
Insert the letter or document into the envelope
Seal the envelope securely
Check that all addresses are clear and correct
Mail the envelope at a post office, mailbox, or courier location