Send a certified demand letter online
You can mail a demand letter as USPS Certified Mail from your browser for $12.99 — or $14.99 with an electronic Return Receipt — by pasting the text or uploading a PDF; it is printed and handed to USPS the next business day.
Usually the right pick: Certified + Return Receipt · $14.99
A demand letter only works if you can later prove it was sent and received. That is what Certified Mail is for: USPS logs the mailing, tracks the piece, and — with the electronic Return Receipt — records who accepted it and when. If the dispute ends up in small claims court, that record is usually the first thing you are asked for.
Plain First-Class ($1.99) is fine for a first, friendly nudge — "please fix this and we are done." The moment you are setting a deadline, quoting a statute, or preparing to sue, spend the extra and go Certified. The $2 difference between Certified alone and Certified with electronic Return Receipt buys the delivery record, which is the half of the proof people forget.
Keep the letter itself boring and factual: what happened, what you want, and a specific date. Screening explicitly allows lawful demand letters and firm legal language — what gets refused is threats, harassment, and impersonation. Your PDF is printed exactly as rendered, so what you see in preview is what the recipient opens.
Practical detail people miss: your receipt records the class, the date and the all-in price, so if you are billing the cost back to the other side (some statutes allow it), you have the document.
Before anything is charged, the address is checked against USPS data, so a typo does not quietly become a missed deadline. Certified pieces never carry our mark — the envelope looks like it came from you, because it did — and every order gets a receipt plus a shareable tracking page you can hand to a lawyer, no login required on either end.
Common questions
Is a mailed demand letter legally required before suing?
Often, yes — many small-claims courts and statutes (like security-deposit-demand-letter laws) require a written demand with a cure period before you file. Check your state; Certified Mail is the standard way to prove you sent it.
Certified Mail or Certified + Return Receipt for a demand letter?
Return Receipt ($14.99 total) if there is any chance of court. Certified alone proves mailing and shows delivery in tracking; the electronic Return Receipt adds the recipient’s delivery record, which is stronger evidence.
Will you refuse to print an aggressive demand letter?
Lawful demand letters are explicitly allowed, including firm deadlines and stating you will pursue legal action. Threats of violence, extortion, and impersonating someone you are not get refused — and the payment hold is released.