What to Put on Letter and Envelope: Every Part in Order, With Examples for Personal and Business Mail

If you are unsure what to put on letter pages and envelopes, the short answer is this: the letter carries your address, the date, the recipient’s address, a greeting, the body, a closing and your signature, and the envelope carries the recipient’s address in the middle, your return address in the top-left corner and a stamp in the top-right corner.

That is the whole skeleton. What changes from one letter to the next is how much of it you include and how formal it sounds. This article walks through each piece in order, shows what to put on a personal note, a business letter and a formal request, and covers the postage basics so your mail actually arrives.

What goes on a letter, piece by piece?

Every letter is built from the same few parts. Some are required for a formal letter and optional for a friendly one. I will go from the top of the page down. If you want a deeper look at the names of each part, our article on the parts of a letter covers them in detail.

The sender’s address

Put your own street address, city, state and ZIP code at the top. This tells the reader where to reply. Skip your name here, because it goes at the bottom with your signature. If your letter is on company letterhead, the printed address already does this job, so do not type it again.

The date

Write the full date, such as October 17, 2026. Avoid number-only dates like 10/17/26, because readers in other countries read them in a different order. The date matters more than people think. It proves when you wrote, and it helps the reader file the letter.

The recipient’s name and address

Next comes the person you are writing to: name, job title if you know it, company, street address, city, state and ZIP. This block sits on the left, a line or two below the date. It is the part most people forget in a business letter, and it is also the part that makes a letter look serious.

The greeting

Use “Dear” plus a name. In a formal letter, add a title and a last name, followed by a colon or a comma. If you do not know the name, “Dear Hiring Manager” or “Dear Customer Service Team” is a safe choice. Avoid “To whom it may concern” when you can find a real name with a short search.

The body

The body is where the message lives. Open with the reason you are writing, give the details in one to three short paragraphs, and finish by saying what you want to happen next. Keep paragraphs short and leave a blank line between them.

The closing and signature

Close with a short phrase such as “Sincerely,” or “Best regards,” then leave space for a handwritten signature and type your name below it. If you wonder where exactly the signature sits, read where the signature goes on a letter.

Extras: subject line, enclosures and copies

Business letters sometimes add three small extras. A subject line sits under the greeting and states the topic in a few words. An enclosure note at the bottom, such as “Enclosure: signed form”, tells the reader something is inside the envelope. A cc line shows who else received a copy. Add these only when they are true and useful.

What to put on letter by type: personal, business and formal

The right amount of detail depends on who is reading. Here is a side-by-side view of what to put on letter pages for the three most common situations.

Part	Personal letter	Business letter	Formal request or complaint
Sender address	Optional, often only on the envelope	Yes, unless on letterhead	Yes
Date	Yes	Yes	Yes
Recipient address	No	Yes	Yes
Subject line	No	Helpful	Yes, with any reference number
Greeting	“Dear Grandma,” or a first name	“Dear Ms. Rivera:”	“Dear Mr. Chen:”
Closing	“Love,” “Warmly,” “Take care,”	“Sincerely,” “Best regards,”	“Sincerely,” “Respectfully,”
Signature and typed name	Handwritten name only	Signature plus typed name	Signature plus typed name and contact details
Enclosures or copies	No	When you attach something	Yes, list copies of documents you include

Names in the table are made-up examples. Use the real name of your reader.

What to put on a personal letter

A personal letter is the most relaxed. Date it, greet the person by the name you normally use, write the way you speak and close warmly. If you are writing a thank-you note, name the gift or the kindness in the first line and say what it meant to you. The reader should not have to guess why you wrote.

What to put on a business letter

A business letter needs the full block: both addresses, date, greeting, body, closing, signature and typed name. Many employers, schools and agencies expect this layout, but it depends on the organization, so follow any instructions they give you. State your purpose in the first sentence and your request in the last paragraph.

What to put on a formal request or complaint

Formal letters add proof. Include dates, order numbers, account numbers or case references so the reader can find your file in seconds. Say what you want, such as a refund or a corrected bill, and give a reasonable deadline. Keep copies of everything you send. Avoid anger, because a calm letter gets a calm response more often.

What goes on the envelope?

The envelope is the first thing the mail carrier sees, so clarity beats style. Print in dark ink, with no fancy script on the address.

• Recipient address: in the center of the front. Name on line one, street address on line two, then city, state and ZIP code on the last line.
• Return address: in the top-left corner. Your name, street, city, state and ZIP.
• Stamp: in the top-right corner.
• Special notes: words like “Personal” or “Attention: Accounts Payable” go below the name line or above the address, where they are easy to spot.

If you are mailing to a company, write the company name on the second line and the person’s name on the first. For an apartment, put the unit number on the same line as the street, for example “120 Main St Apt 4”.

Why the return address matters

If the letter cannot be delivered, the return address lets the post office send it back to you. Without it, the letter may be lost. Even in a casual note to a friend, I recommend adding it.

What are the postage basics?

You need enough postage on the envelope before you drop it in a mailbox. For a standard letter in the United States, a single stamp usually covers a regular-size envelope up to a set weight. A thicker envelope, odd shape or heavy contents may cost more.

Prices change, so I do not quote them here. Check the current rates, shapes and size rules on usps.com, or ask at the counter of your local post office to weigh the letter. A few quick rules help:

• Weigh the letter if it has more than a few sheets or a card inside.
• Square envelopes and lumpy ones often need extra postage.
• For letters that matter, such as legal notices, ask the post office about tracking or a delivery receipt.
• For international mail, the address format and postage are different, so check before you buy stamps.

How do you assemble a letter step by step?

Once you know what to put on letter pages, the work is just putting it in order. This is the routine our team follows when we write anything that needs to look professional.

1. Decide the type. Personal, business or formal. This sets how many parts you need.
2. Collect the facts. Names, titles, addresses, dates, reference numbers and any documents you will attach.
3. Type the top block. Sender address, date, recipient address, and a subject line if you use one.
4. Write the greeting. Find the real name when you can. A quick look at the company website or professional profile is often enough.
5. Draft the body. Purpose first, details second, request or next step last.
6. Add the closing. Pick the phrase that fits the tone and leave room to sign.
7. Proofread out loud. Check names, dates and numbers twice. Read the address against the envelope.
8. Sign in blue or black ink. Then fold, insert, seal and stamp.

How should you fold the letter?

For a standard business envelope, fold the page into thirds, like a brochure. Fold the bottom third up first, then the top third down. Put the letter in with the open edge facing up so the reader unfolds it correctly. A neat fold is a small signal that you care about the details.

What do the finished pieces look like?

Seeing what to put on letter and envelope is easier with a picture. Here is a sample business letter layout with made-up names, so you can see the parts in order.

45 Oak Lane
Springfield, IL 62701

October 17, 2026

Ms. Dana Rivera
Office Manager
Brightway Supplies
900 Market Street
Chicago, IL 60601

Subject: Invoice 2041, order of September 3

Dear Ms. Rivera:

I am writing about invoice 2041, which lists ten boxes. Only eight arrived. Could you send the missing two or correct the invoice? I have attached a copy of the delivery slip.

Thank you for your help. I can be reached at the phone number on my account.

Sincerely,

[signature]
Alex Morgan

Enclosure: delivery slip

And here is how the envelope for that letter would be laid out:

Alex Morgan                                   [stamp]
45 Oak Lane
Springfield, IL 62701

                    Ms. Dana Rivera
                    Brightway Supplies
                    900 Market Street
                    Chicago, IL 60601

A short personal example

A personal note needs far less. Something like this works:

October 17, 2026. Dear Aunt Maya, thank you for the scarf. It arrived on the coldest morning of the week, and I wore it straight away. I hope to visit in the spring. With love, Sam.

No addresses inside the letter, a warm greeting, one clear thank-you and a friendly close. That is enough.

If you write on notebook paper

Sometimes you only have lined paper. That is fine for a personal note or a school request. Keep the margins even, write neatly and follow the same order of parts. Our guide to writing a letter on notebook paper shows the layout.

What mistakes should you avoid?

Most problems come from skipping a part, not from bad writing. When people ask me what to put on letter drafts before mailing, I point to these slips first.

• Forgetting the date. It is the easiest part to skip and the most useful to the reader.
• Using the wrong name or title. Check spelling twice. A misspelled name is the quickest way to lose goodwill.
• Burying the point. If the reader must scroll through three paragraphs to find your request, rewrite the opening.
• Writing the envelope too small or too light. Machines read the address, so use dark ink and clear letters.
• Leaving off the return address. You lose the chance of getting the letter back.
• Sending the only copy. Keep a copy or a photo of any important letter and attachments.
• Mixing tones. A cold “To whom it may concern” with a joke in the middle confuses the reader. Pick one tone and keep it.

What can letters teach you about writing to strangers?

Letters and cover notes share a craft with the work we do every day. When our team bids for clients on Upwork, each proposal is a short note to someone who does not know us and decides in seconds. The rules are the same as in a good letter: a real name, a clear first line, the specifics the reader cares about and an easy next step.

BidStaff does not write letters for you, but the way it handles proposals follows that same logic. It drafts in your own winning tone from your past proposals, attaches the best work sample and checks the client before you apply. You can see how that works on the features page. If you want to understand the client side before you write, read how to check an Upwork client before you apply, and for tone, see writing Upwork proposals in your own tone.

The lesson carries both ways. A letter that names the right person, states its purpose early and ends with a clear request gets read. A letter that skips those basics gets set aside. For a closer look at the proposal side, the guide on how to send proposals on Upwork is a good next read, and BidStaff pricing is there if you want to try the tool.

Frequently asked questions

What do I put at the top of a letter?

Put your address first, then the date, then the recipient’s name and address. On letterhead, skip your address because it is already printed.

Do I put my name on the letter if it is already on the envelope?

Yes. Sign by hand and type your name below the signature. The envelope can get separated from the letter, and the reader needs to know who wrote it.

Where does the return address go on an envelope?

In the top-left corner of the front. The recipient’s address goes in the center, and the stamp goes in the top-right corner.

Is it okay to leave out the recipient address inside a personal letter?

Yes. Personal letters usually skip it, because the address is already on the envelope. Business and formal letters should include it.

How much postage do I need for a letter?

It depends on weight, size and shape. Check the current rates on the USPS website or ask at the post office counter. Do not guess if the letter is thick.

Should I use a comma or a colon after the greeting?

Use a colon in formal business letters and a comma in friendly ones. Both are accepted, and readers rarely notice, as long as you stay consistent.

Can I type the whole letter and the envelope?

Yes. Typing is fine for business mail. Add a handwritten signature to the letter. For personal notes, handwriting feels warmer.

Do I need a subject line?

It is optional, but it helps in business and formal letters, especially when you refer to an invoice, case or account number.

Conclusion

Knowing what to put on letter pages and envelopes takes the stress out of writing. Use the full set of parts for business and formal mail, trim it for personal notes, and always make the envelope clear and correctly stamped.

Your action list:

1. Decide whether your letter is personal, business or formal.
2. Gather names, addresses, dates and reference numbers before you write.
3. Write purpose first, details second, request last.
4. Proofread the letter and the envelope against each other.
5. Check postage on usps.com or at the post office, then mail it and keep a copy.

Other related articles

• What are the parts of a letter
• Where does the signature go on a letter
• How to write a letter on notebook paper
• How to write a letter introducing yourself
• How to send proposals on Upwork

About the Author

Muhammad Shahzad is the founder of BidStaff and Leadslancer. He runs Upwork accounts for a freelance and agency team, and builds BidStaff around that daily work.