- Price
- from €11.95incl. VAT, 2 pages included
- Delivery time
- 3 to 5 business daysusually, after posting
- Proof
- Delivery record+ tracking and proof of mailing
- Handed to the post
- Upload by 9:00 Pacificon a US business day, in that day's print run
- Counts as
- Domestic USPS mailprinted and posted in United States
Why send IRS mail by certified mail?
Most IRS notices give you a date to respond by. Under the timely mailing rule, a document mailed to the IRS counts as filed on the mailing date if it is properly addressed and mailed in time. Certified Mail records that date and the delivery.
Since 24 December 2025, a USPS postmark shows the day USPS processed the letter, which can be later than the day it was handed in. The Certified Mail acceptance record shows the day USPS took the letter.
How much time is left?
| Step | Time |
|---|---|
| Upload by 9:00 Pacific on a US business day | In that day's print run |
| Delivery to the IRS address | Usually 3 to 5 business days after posting |
| Deadline on your notice | Mail at least a week before it |
How do you send it?
- Use the IRS address printed on your notice, not a general address.
- Put a copy of the notice and your reply in one PDF.
- Upload it and choose the United States.
- Keep the tracking record with your copy of the reply.
Sample reply to an IRS notice
A cover letter for your reply. Attach the response form from the notice if it has one.
Internal Revenue Service
[Address from the notice]
[Date]
Re: Notice [CP or letter number], dated [date]
Taxpayer: [Name]
SSN or ITIN: last four digits [XXXX]
Tax year: [year]
Dear Sir or Madam,
I am replying to the notice above. [I agree / I do not agree] with the proposed changes because [short reason].
Enclosed are [list of documents].
Please contact me at [phone or email] if you need more information.
Sincerely,
[Name]
[US address]
What to check before you send
- Put a US address in the sender block of your letter. USPS Certified Mail is a domestic service, so the return address must be in the United States: your US home or office, a relative's address or a US mail forwarding address.
Frequently asked questions
Does certified mail count as proof for the IRS?
Federal law treats registered and certified mail as evidence of the mailing date for documents sent to the IRS. For a strict filing deadline, mail early rather than on the last day.
What changed with the postmark in 2025?
Since 24 December 2025, the postmark shows when USPS processed the letter, not always the day it was handed in.
Can I send it from outside the US?
Yes. You upload the PDF from anywhere. The sender address on the letter must be a US address.
Which address do I use?
The IRS address printed on the notice you are answering.
Do I need a return receipt?
Not usually. The Certified Mail record already shows the mailing and the delivery.