What does 'c/o' stand for in a mailing address?

'c/o' stands for 'care of.' It's used in a mailing address when you want to send mail to someone who is temporarily or permanently residing at another person's or organization's address. It indicates that the mail should be delivered to the person or entity listed after the 'c/o,' who will then ensure it reaches the intended recipient.

When should I use 'c/o' in a mailing address?

Use 'c/o' when the intended recipient doesn't directly receive mail at the address you're using. This is common when someone is staying with a friend or relative, living in a multi-unit dwelling where mail is delivered to a central point, or when sending mail to an employee through their company.

How do I format 'c/o' correctly in a mailing address?

The 'c/o' should be placed on the second line of the address, directly below the recipient's name. For example: John Doe c/o Jane Smith 123 Main Street Anytown, CA 91234

Is 'care of' the same as 'in care of'?

Yes, 'care of' and 'in care of' have the same meaning and can be used interchangeably. However, 'c/o' is the most common and concise way to indicate that the mail is being delivered 'in care of' someone.

Can I use 'c/o' for business addresses?

Yes, you can use 'c/o' for business addresses when you need to direct mail to a specific individual within the company. For example, if you're sending a letter to John Doe at XYZ Corp, you might address it as: John Doe c/o XYZ Corp 456 Business Avenue Anytown, CA 54321

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Published by BasedLabs·Updated March 9, 2026

what does c/o mean in mailing

Understand the meaning and proper usage of "c/o" in mailing addresses with our comprehensive guide.

Try these examples:

How to use what does c/o mean in mailing

Steps to get you started in BasedLabs.

Step 1

Identify the Need for 'c/o'

Determine if the recipient receives mail directly at the address.

Before using 'c/o', confirm that the intended recipient doesn't typically receive mail at the address. If they do, there's no need to use 'c/o'. This step ensures the mail is routed correctly and avoids confusion.

Step 2

Format the Address Correctly

Place 'c/o' in the proper position in the address block.

Write the recipient's name on the first line, followed by 'c/o' and the name of the person or organization who will receive the mail on their behalf on the second line. Below that, include the street address, city, state, and zip code as usual. Example: John Doe, c/o Jane Smith, 123 Main Street, Anytown, CA 91234.

Step 3

Double-Check the Address

Verify all information for accuracy.

Before sending, carefully review the entire address for any errors, including spelling and formatting. An incorrect address can lead to delays or non-delivery. Pay special attention to the zip code and the names listed in the 'c/o' line.

Ensures Accurate Delivery

Using 'c/o' guarantees that your mail will be delivered to the correct person, even if they reside at an address shared with someone else. This avoids confusion and ensures privacy.

Maintains Privacy

If the intended recipient wishes to keep their actual address private, 'c/o' allows them to receive mail without having their name directly associated with that address. This is especially useful for temporary situations or when privacy is a concern.

Simplifies Mail Handling

Using 'c/o' makes it clear to postal workers and residents who should handle the mail for the intended recipient, streamlining the delivery process and reducing the chance of misdirection.

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