Do you need last name on mail usps

According to the United States Postal Service (USPS), you do not need to include a last name on a mailpiece to deliver it to the correct address. However, it's still recommended to include the full name, including the last name, to ensure accurate delivery.

Here are some guidelines from the USPS:

1. First Name and Street Address: The USPS recommends using the first name and street address to deliver mail. This is because many people have the same last name, but different first names.
2. No Last Name Required: If you only have the first name and street address, the USPS will still deliver the mail to the correct address. However, this may not be as accurate as including the full name.
3. Full Name Recommended: Including the full name, including the last name, is recommended to ensure accurate delivery. This is especially important for mail that requires a specific recipient, such as bills, packages, or important documents.
4. Additional Identifiers: If you're sending mail to a business or organization, you can include additional identifiers like the company name, department, or suite number to help ensure delivery.

In summary, while you don't strictly need a last name on a mailpiece, including the full name, including the last name, is recommended to ensure accurate delivery.