USPS Certificate of Mailing Cost: PS Form 3817, 3665 and Bulk

A USPS certificate of mailing costs $2.45 for an individual article on PS Form 3817, or $0.75 per piece listed on a firm mailing sheet (PS Form 3665, minimum 3 pieces). Bulk quantities cost $14.00 for the first 1,000 pieces.

Maintained by Archie Chang · Fees checked against USPS Price List Notice 123 on November 2, 2026 · Methodology & sources

Not an official source. FedRateCalc is independent and is not affiliated with the United States Postal Service. The fees below are copied from USPS Price List Notice 123, which lists them as “Effective October 04, 2026”. USPS.com and your Post Office are authoritative for what you pay, and a Post Office can tell you which fee applies to your mailpiece.

Individual pieces

Certificate of Mailing, individual pieces
ItemFee
Individual article (PS Form 3817)$2.45
Firm mailing sheets (PS Form 3665), per piece listed (minimum 3 pieces)$0.75
Additional copy of PS Form 3817 or PS Form 3665 (per page)$2.45
“Firm mailing sheets (PS Form 3665), per piece listed (minimum 3 pieces)”
Notice 123, Certificate of Mailing

Arithmetic: a firm mailing sheet with 3 pieces listed is $2.25, and one with 10 pieces is $7.50.

Bulk quantities (mailings)

Certificate of Mailing, bulk quantities
ItemFee
For first 1,000 pieces (or fraction thereof)$14.00
Each additional 1,000 pieces (or fraction thereof)$1.75
Additional copy of PS Form 3606-D$2.45
“For first 1,000 pieces (or fraction thereof)”
Notice 123, Certificate of Mailing, Bulk Quantities (Mailings)
Bulk fee for sample quantities (arithmetic from the rows above)
PiecesFee
1,000$14.00
1,001$15.75
2,000$15.75
5,000$21.00

Accountable mail

Accountable Mail
ItemFee
Additional copy of PS Form 3877, Firm Mailing Book for Accountable Mail (per page)$2.45

Frequently asked questions

How much is a certificate of mailing?

Notice 123 lists $2.45 for an individual article (PS Form 3817).

How much is a firm mailing sheet (PS Form 3665)?

$0.75 per piece listed, and Notice 123 notes a minimum of 3 pieces. A sheet listing three pieces comes to $2.25 (arithmetic).

How much is a certificate of mailing for bulk mailings?

Notice 123 lists $14.00 for the first 1,000 pieces (or fraction thereof) and $1.75 for each additional 1,000 pieces (or fraction thereof). For 5,000 pieces that is $21.00 (arithmetic: $14.00 + 4 x $1.75).

What does an additional copy of the form cost?

An additional copy of PS Form 3817 or PS Form 3665 is $2.45 per page, and an additional copy of PS Form 3606-D is $2.45.

How much is an additional copy of the Firm Mailing Book for Accountable Mail?

Notice 123 lists $2.45 per page for an additional copy of PS Form 3877, Firm Mailing Book for Accountable Mail.

Related USPS fee pages

More USPS postage and fee tools

Sources

USPS Price List Notice 123, “Effective October 04, 2026”, sections “Domestic—Extra Services and Fees”, “Domestic—Other Services and Fees” and “Domestic—PO Box Service” (First-Class Mail postage from the same notice): https://pe.usps.com/text/dmm300/Notice123.htm. We checked the fees on this page against the Internet Archive copy of the notice captured October 22, 2026, and spot-checked the live page on November 2, 2026 (Certified Mail, Return Receipt, money orders, Registered Mail tiers and the PO Box rows for fee groups C30, C31 and C44 matched): https://web.archive.org/web/20261022140554id_/https://pe.usps.com/text/dmm300/Notice123.htm.

Reviewed November 2, 2026. Sums and multiples on this page (for example a fee plus postage) are arithmetic on the notice’s numbers and are labelled as such; Notice 123 does not print them. Check USPS.com or a Post Office before mailing.