How to Mail a Letter (Step-by-Step Guide)
Summary
- Write your letter (typed or handwritten)
- Put it in an envelope
- Write the recipient address in the center
- Add your return address top-left
- Put a stamp top-right
- Drop it in a USPS collection box or take it to a Post Office
If you're wondering how to mail a letter, it's simpler than you think. Whether you’re mailing a form, thank you note, or legal notice, knowing how to properly address and stamp your envelope matters.
How to Write a Letter
Use a pen or type your message. Typed letters are preferred for formal communication. Handwritten notes are more personal.
Where to Write the Addresses
- Recipient's Address: Center of the envelope
- Return Address: Top-left corner
Where to Put the Stamp
Always place the stamp in the top-right corner of the envelope.
How Much Postage Do You Need?
| Letter Type | Postage Needed |
|---|---|
| Standard (1 oz) | 1 Forever Stamp |
| Heavier (2 oz) | 1 Forever Stamp + 1 Additional-Ounce stamp (or pay 2-oz rate) |
| International (1 oz) | Global Forever Stamp (heavier letters need extra postage) |
| Certified Mail | Extra fee |
Tip: Square, rigid, or lumpy envelopes require a non-machinable surcharge even at 1 oz. Letters can weigh up to 3.5 oz—heavier or too thick/large becomes a "Large Envelope/Flat" and needs more postage.
Where to Drop Off a Letter
Drop your letter in a USPS collection box, your home mailbox (raise the flag if applicable), hand it to your letter carrier, or take it to a Post Office.
When to Use Certified Mail
For important documents like legal notices, tax forms, or official correspondence, consider using Certified Mail which provides proof of delivery and tracking.
Learn more about how to send Certified Mail and Certified Mail costs to ensure your important letters arrive safely.
Note: Certified Mail is a domestic USPS service (not available for international letters).
FAQs
How do I mail a letter?
Write or print your letter, put it in an envelope, write the recipient's address, add your return address, apply a stamp, and drop it in a mailbox or take it to a Post Office.
Where do I write the recipient address?
Center of the envelope.
Where does the return address go?
Top-left corner.
Where do I put the stamp?
Top-right corner.
Want to learn how to do this digitally? Read our guide on how to mail a letter online.
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