Key takeaways
- For paper mail, center the delivery address, put your return address at top left and the stamp at top right; then seal it and use a mailbox, blue box, or counter.
- There are four practical ways to send a letter: stamp it yourself ($0.82), bring a finished letter to the post office counter, upload a PDF to an online mail service, or print at a library or shop first.
- Postmarkr’s $2.05 one-page black-and-white, single-sided example includes the required address page, standard envelope, First-Class postage and processing fee. Review the total for your actual options.
- Allow for preparation, collection or production, and postal delivery separately. First-Class delivery is estimated at 1–5 days after mailing, not guaranteed.
- Choose mailing records and signature services according to the requirement. Certified Mail and Return Receipt provide different records; Postmarkr does not currently offer Certified Mail.
To send a letter in the US, prepare the pages, address the envelope, add the right postage and hand it to USPS. If your letter is still a file, first decide whether you need the printed paper in your hands or can have a service print and mail a copy.
Have the recipient’s complete mailing address and your return address ready. Check the recipient’s instructions for an original signature, enclosure or required mailing service before choosing one of the four routes below.
The four ways to send a letter, compared#
The comparison below assumes an ordinary domestic First-Class letter. The routes differ in supplies, preparation and handoff; collection and production timing also affect when USPS receives it.
Choose the route that finishes your mailing
Your starting point | Route | Still your responsibility |
|---|---|---|
Paper letter, envelope and postage ready | Prepare it yourself and use an available USPS collection point | Check the address, finished weight, postage and next collection. |
Prepared letter; need postage advice or a mailing record | Take it to a Post Office counter | Bring the paper and envelope; ask for the required service before handing it over. |
Final PDF; recipient accepts a printed copy | Use an online print-and-mail service | Review the file, both addresses, print preview and complete price. Allow production time. |
Need the paper to sign it or add an enclosure | Print at a library or shop, then mail | Confirm file submission, pickup, supplies and where the finished letter will enter the mail. |
USPS’s domestic letter guide (opens in new tab) explains envelope preparation and collection options. The sections below separate preparation, cost and timing so you can finish the whole task.
How to address and mail the envelope#
For an ordinary paper letter, work through these steps in order:
- Write the recipient’s address in the bottom center of the envelope front. Include the name, street and any apartment or suite, then city, state and ZIP Code.
- Return address — top left corner. Use an address where undeliverable mail can come back to you.
- Add postage at the upper right. Check the finished envelope’s weight and shape; a page count alone does not establish the postage.
- Seal it and hand it off — use your outgoing mailbox, a blue collection box, or a Post Office. Check the posted collection time; dropping it off after the last pickup can add a wait before collection. If the trip itself is the problem, see every way to mail a letter without going to the post office.
Delivery address example — fictional
TAYLOR REED
123 EXAMPLE ROAD APT 4
CHICAGO IL 60601
This block belongs in the bottom center. Your return address goes at the top left; postage goes at the top right. Use the recipient’s actual address, not this sample.
Formats, business envelopes, and the edge cases live in the dedicated how to address an envelope guide.
Before sealing: check that every page and required enclosure is inside, sign any page that needs an original signature, and keep the copy or mailing record your task requires.
What each way really costs#
For a qualifying machinable domestic letter weighing no more than one ounce, stamped postage is $0.82 at the rate effective July 12, 2026. Add any paper, envelope and printing costs. The stamp covers postage; it does not buy a recipient signature.
Postmarkr’s one-page black-and-white, single-sided example is $2.05, including the required address page, standard envelope, First-Class postage and processing fee. More pages, color, print settings and envelope size can change the total. Check current pricing and review your quote before paying.
Library or print shop first. Check the location’s current price and any minimum charge or free allowance. Add an envelope and postage, and confirm whether the location can mail the finished letter or only print it.
Three things push a DIY letter past that one stamp:
- Extra weight — additional-ounce letter postage is $0.29, within the First-Class letter weight limit of 3.5 ounces.
- A square or rigid envelope — picks up the $0.49 nonmachinable surcharge.
- A larger envelope — a qualifying flat starts at $1.69 for one ounce. Size, thickness, flexibility and shape determine whether it qualifies; a rigid or lumpy large envelope may need package postage.
Weigh and measure an unusual envelope before buying postage. USPS’s postage calculator (opens in new tab) uses the finished piece; Postmarkr’s mail cost calculator estimates printing and mailing from your document and print settings. These are different quotes for different routes.
How long each way takes#
Separate the time you spend preparing the letter, the wait before USPS receives it, and postal delivery. USPS lists a First-Class delivery window of 1–5 days. It is an estimate, not a guaranteed arrival date; collection timing and origin and destination affect the overall wait.
What happens before delivery starts
Stage | What to check |
|---|---|
Preparation | Finish the document, signatures, enclosures, addresses and postage or online preview. |
Collection or production | For paper mail, check the next collection. For online mail, allow processing, printing and handoff. Payment is not USPS acceptance. |
Postal delivery | Count transit after mailing. Use the destination and chosen service to assess the estimate; do not treat it as an arrival guarantee. |
For online mail, the mailing process guide explains what happens after payment and which status updates may be available.
If you need a faster service, compare Priority Mail and Priority Mail Express for your destination and mailing date. They can carry documents as well as packages; availability, prices and any guarantee conditions depend on the service. The First-Class versus Priority Mail guide explains the differences.
What you need before you start#
Have the recipient’s full address and your return address ready. The remaining preparation depends on the route:
Do it yourself: a working printer or a pen, enough postage for the finished envelope, and an appropriate envelope.
- The counter: the finished letter and an appropriate envelope. Check supply availability before relying on the location to provide one.
- Online: a PDF and the address. If the letter starts on paper, follow the iPhone and Android guide to send it from your phone. If you are drafting it digitally, export from Docs, Word, or Pages, or use the ChatGPT-to-PDF guide to format a draft. Addresses are checked before printing.
- Library or shop first: the file and a way to get there; the stamp and envelope are still on you. If no printer is the whole problem, the printer-free playbook goes deeper on that constraint.
Which way should you pick?#
A personal note already on paper: use the supplies you have, check the postage and arrange collection.
A PDF whose recipient accepts a printed copy: online printing can remove the printer and mailing errands. It cannot supply an original ink signature or include an object from your desk. If you are mailing for an executive, check whose return address to use and keep the final copy; sending on someone’s behalf also requires the right sign-off.
Several recipients: choose by whether the document changes. Different PDFs use separate letters; one shared document or a personalized template uses Bulk Send. The multiple-letter guide explains those paths. For recurring invoices, compare the invoice printing and mailing options.
- It's going abroad — a letter to Mexico, say → the post office counter. Postmarkr handles U.S. addresses only today. If you are outside the US and the recipient is inside it, see how to send a letter to the USA from abroad for that journey.
When a letter needs proof#
An ordinary stamped letter does not include a USPS mailing receipt or recipient signature. If you need a record, choose the appropriate extra service before mailing. Postmarkr’s dashboard shows processing milestones and USPS scan updates when available; scans may be delayed or missing and are not a recipient signature.
Certified Mail provides a mailing receipt and delivery or attempted-delivery information. At the listed July 2026 rates, a qualifying one-ounce stamped letter with Certified Mail costs $6.37 before any Return Receipt fee. Add Return Receipt if you need the signature record it provides. The Certified Mail guide explains the options. For a notice with specific mailing requirements, check those requirements before choosing a service. Postmarkr currently sends First-Class letters and does not offer Certified Mail.
Before you hand over the letter or pay online, make one final check: correct document, complete addresses, required service, total price and enough time for collection or production before postal delivery. Keep the final copy and the records your chosen service provides.