Demand for Payment (Unpaid Invoice)
Demand payment of an overdue invoice or debt in writing, with a firm deadline and dated proof that your demand was received.
Write or upload your letter, we print it, seal it, and hand it to USPS as Certified Mail with Electronic Return Receipt. All in 5 minutes, without leaving your desk, with the same legal proof as the post office counter.
Certified Mail Online is an independent, privately operated mailing service. We are not affiliated with, endorsed, or operated by the United States Postal Service (USPS®).
Every option includes printing, the envelope, and USPS postage. Pick the level of proof and speed you need: the price you see is the price you pay.
Everyday mail without proof: invoices, forms, simple letters.
from$2.19
all-in, postage included
Proof of mailing and delivery confirmation, no signature proof.
from$7.95$8.63 at other online services
all-in, postage included
USPS Certified Mail with Electronic Return Receipt, sent without leaving home.
from$10.95$11.02 at the counter
all-in, postage and ERR included
Faster delivery with USPS tracking, no signature proof.
from$16.95$20.98 at other online services
all-in, postage included
Your letter is physically handed to USPS. Every step produces dated proof you can rely on before a court, a government agency, or a landlord.
As soon as your letter is handed to USPS, you receive timestamped proof of mailing. It officially certifies the date your letter was sent.
The recipient signs upon delivery. Their signature and the delivery date come back to you as an Electronic Return Receipt: your court-ready proof.
Proof of mailing, tracking, and Return Receipt are stored in your account for 3 years. Download them anytime, even years later.
Four steps, five minutes, zero trips to the post office.
Enter the sender and the recipient. We check the address format to avoid any returned mail.
Write directly online, start from a template, or upload your PDF. Exact preview before sending.
Certified Mail with Electronic Return Receipt. Double-sided printing, mailing date: you decide.
Printing, sealing, postage, hand-off to USPS. You track everything from your account.
Tools designed to simplify every mailing, from writing to tracking.
As soon as your letter is mailed, you get a USPS tracking number. You see every milestone: mailed, in transit, delivered. All your proofs of mailing and delivery are stored in your account, available anytime.
Simply describe your situation in a few sentences. Our assistant drafts a clear, formal letter tailored to your request. You review it, edit whatever you like, then approve it before mailing. You stay in control from start to finish.
Upload your PDF, JPG, PNG, or TXT file up to 20 MB. We generate a faithful page-by-page preview so you can check the layout before paying. What you see on screen is exactly what will be printed and mailed.
Demand letter, lease termination, subscription cancellation, complaint: pick a template written for your situation, fill in the blanks, and your letter is ready. A real time-saver, no blank page.
Send your letter any time, from your computer or phone. No more waiting in line at the post office.
Paper, envelope, postage: everything is included in the displayed price. No prepaid wallet, no minimums, no hidden fees.
Printing, mailing, transit, delivery: every step is timestamped in your account. Proofs stored for 3 years.
A question about your letter? Our team replies within 24 hours.
Demand for payment, notice to vacate, debt validation: start from a professionally written template, personalize it, and send it as Certified Mail in minutes.
Demand payment of an overdue invoice or debt in writing, with a firm deadline and dated proof that your demand was received.
Give your landlord formal written notice that you are ending your tenancy and moving out, with a dated record of when notice was received.
Demand the return of your security deposit from a former landlord who has missed the legal deadline or made unjustified deductions.
Require a debt collector to validate a debt under the Fair Debt Collection Practices Act before any further collection activity.
Resign from your position in writing with a clear effective date, and request written confirmation of your final pay and benefits.
Cancel a gym membership, subscription, or recurring service in writing, revoke billing authorization, and obtain dated proof of your cancellation.
Only one letter to send? Pay once, with printing, the envelope, and USPS postage included, and proofs archived in your account on certified letters. No membership, nothing to cancel.
All your mail in one place, at the best prices. Try it for 48 hours at the price of your letter, then $49.00 per month.
Included every month
$49.00/month
Notice periods, deadlines, legal requirements: what to know before sending your letter, explained simply.
Send USPS Certified Mail online in about five minutes: upload or write your letter, we print it, seal it, and hand it to USPS the same business day before 2:00 PM ET. $10.95 all-in with Electronic Return Receipt, versus about $11.02 at the counter plus your printing, envelope, and trip. Proofs stored 3 years.
Updated · 10 min read
At current USPS rates (effective July 12, 2026), a one-page certified letter costs $6.37 at the counter, $9.28 with an Electronic Return Receipt, and $11.02 with the green card. Online services run $10.19 to $11.89 all-in. Every fee itemized, with real scenarios.
Updated · 12 min read
Certified Mail proves a letter was mailed and delivered, travels at First-Class speed, and costs $9.28 to $11.02 at the counter. Registered Mail is a security service: $20.90 and up, locked chain of custody, insurance to $50,000, and a much slower trip. Full comparison and decision guide.
Updated · 10 min read
Everything you need to know before sending your letter.
Yes. Your letter is printed, sealed, and handed to USPS as genuine Certified Mail. You receive proof of mailing, then the Electronic Return Receipt with the recipient's signature. These documents are accepted by courts, government agencies, and landlords, exactly as if you had waited in line at the post office.
When the letter is delivered, USPS captures the recipient's signature. That signature certifies the exact date of receipt. The Electronic Return Receipt is then stored in your account, ready to download at any time. It is your proof that the letter was received, and when.
Your letter is printed and handed to USPS the same business day if you complete your order before 2:00 PM ET, or the next business day otherwise. USPS typically delivers Certified Mail within 3 to 5 business days, though delivery times are set by USPS and not guaranteed.
We batch the printing, sealing, and mailing of thousands of letters every day. That volume lets us negotiate costs, so one all-in price covers what the counter itemizes: postage, the Certified Mail fee, and the return receipt, plus the printing, envelope, and trip the counter leaves to you. Counted all-in, you come out ahead, while skipping the line and filling out forms by hand.
USPS leaves a notice in the mailbox. The recipient then has 15 days to pick up the letter at their local post office. If they do not claim it, the letter is returned marked unclaimed. That marking is also proof: legally, unclaimed Certified Mail is considered to have been presented.
You can upload PDF, JPG, PNG, or TXT files, up to 11 pages per Certified Mail envelope (printed double-sided). Longer documents, up to 33 pages, are automatically sent as up to 3 separate letters, each with its own tracking and proofs. Your document is converted and laid out automatically. You see an exact preview before paying: what you see on screen is exactly what will be printed.
Yes. Our built-in editor lets you write your letter without leaving the page. You can start from a ready-made template (demand letter, lease termination, complaint, notice) or use our AI writing assistant to word your request correctly.
Every letter appears in your account with its real-time status: printing, mailing, in transit, delivered. Your USPS tracking number is provided and every step is timestamped.
There is no commitment. You try the service with your first letter, paid at its all-in price, then the membership renews automatically at $49 per month with 10 letters included each month (any sending type, Certified Mail with Electronic Return Receipt included). You can cancel anytime, in two clicks from your account, with no reason or fees required. Cancellation takes effect at the end of the current period.
As long as your letter has not gone to print, you can cancel it free of charge from your account. If your letter is not mailed for any reason, you receive a full refund. Once the letter is printed and handed to USPS, the service has been performed.
Yes. Your documents are encrypted in transit (HTTPS) and stored on secure servers. Only the automated print pipeline accesses them, just long enough to produce your letter. Nobody reads your mail. You can request deletion of your documents at any time.
You pick the mailing date at checkout: as soon as today (before 2:00 PM ET) or the next business day, or a later date if you prefer to schedule the mailing. Your letter is printed and handed to USPS on the chosen date, and your proof of mailing shows that date.