PS Form 3602-N at a glance
What it is: The Postage Statement-Nonprofit USPS Marketing Mail is the form to use for Nonprofit USPS Marketing prices.
Who signs: The Signature of Owner or Agent is written with the Printed Name of Mailer or Agent Signing Form and the Telephone. If an agent signs this form, the agent certifies that he or she is authorized to sign on behalf of the mailer, and that the mailer is bound by the certification and agrees to pay any deficiencies.
Where to get it: This form and mailing standards are available on Postal Explorer at pe.usps.com.
A filled-in PS Form 3602-N example: a nonprofit letter mailing by permit imprint

How to fill out PS Form 3602-N, box by box
Mailer: Permit Holder, Mailing Agent and Mail Owner

Complete Mailer and Mailing sections on page 1.
The Mailer section must be completely filled in, including the Permit Holder in the first box, the Mailing Agent, if any as described, in the second box, and the Mail Owner, as described, if other than the Permit Holder, in the third box.
In the first box, write the Permit Holder Name, Address, Email, Telephone.
Write the USPS Nonprofit Auth. No.
Write the EPS Cust. Ref. No. and the CRID.
In the second box, write the Mailing Agent (If other than permit holder) Name, Address, Telephone.
The mailing agent is a business entity, organization, or individual acting on behalf of one or more mail owners by providing mailing services for which the mail owners compensate the mailing agent.
Write the Mail Owner (If other than permit holder) Name, Address.
The mail owner is the business entity, organization, or individual who makes business decisions regarding the mailpiece content, directly benefits from the mailing, and ultimately pays for postage on the mailpiece directly or by way of a mailing agent.
Mailing: Post Office, Date, Pieces and Permit
Type of Postage and Processing Category
Parts Completed
Postage: Line 1, Line 2, Line 3 and Line 4

Add the postage amounts for all parts and enter on Line 1 Subtotal Postage, rounded off to two decimal places. For postage affixed mailings round off to three decimal places.
Line 2, Price at Which Postage Affixed (Check one): Correct, Lowest or Neither. Complete if mailing includes pieces bearing metered/PC Postage or precanceled stamps.
Step 5: Complete Line 2 for Postage Affixed mailings.
Multiply the number of pieces by the postage affixed.
Put the total in the Postage Affixed block.
Line 3, Incentive/Discount Flat Dollar Amount.
Step 6: Line 3 is for postage adjustments that apply to the entire mailing.
Report any Incentive/Discount Flat Dollar Amount on Line 3.
Line 4, Net Postage Due (Line 1 +/- Lines 2, 3), with Permit #.
Step 7: Calculate Line 4 Net Postage Due by subtracting any Postage Affixed and Incentive/Discount (Lines 2 and 3) from the Subtotal Postage (Line 1).
For permit imprint mailings, the Net Postage Due is the amount that will be withdrawn from the permit imprint account listed in the Permit # box in the Mailing section.
For postage affixed mailings, the Net Postage due is the amount that must be tendered in addition to that already affixed to the mail, and it may be tendered by any of the applicable methods including withdrawal from an advance deposit account that can be listed by Permit # on Line 4.
Certification

Write the Signature of Owner or Agent, the Printed Name of Mailer or Agent Signing Form, and the Telephone.
Step 8: Read and sign the Certification section, including your telephone number.
Attach all completed parts and submit with the mailing.
The mailer's signature certifies that: (1) the mailing complies with DMM 703.
Anyone who furnishes false or misleading information on this form or who omits information requested on this form may be subject to criminal and/or civil penalties, including fines and imprisonment.
More rules for PS Form 3602-N
All pieces must be reported on the appropriate line at the full published price (not including the Full-Service Intelligent Mail incentive).
Pieces that comply with the Full-Service Intelligent Mail option requirements are additionally reported on the line provided.
Part A: Automation Letters. Enter total in Part A Total box.
Part B: Nonautomation Letters. Enter total in Part B Total box.
Part C: Carrier Route Letters. Enter total in Part C Total box.
Part D: Automation Flats. Enter total in Part D Total box.
Part E: Nonautomation Flats. Enter total in Part E Total box.
Part F: Carrier Route Flats. Enter total in Part F Total box.
Part G: Marketing Parcels. Enter total in Part G Total box.
Part K: Marketing Parcels - Heavy Printed Matter. Enter total in Part K Total box.
Part I: Machinable Parcels. Enter total in Part I Total box.
Part J: Nonstandard Parcels. Enter total in Part J Total box.
Part L: Customized MarketMail (CMM) - Enter total in Part L Total box.
Part S: Extra Services - Report any combined Extra Services on the lines provided for them, e.g., Insured mail that is also Restricted Delivery would be reported on line S31-Insurance Restricted Delivery. Enter total in Part S Total box.
For Permit Imprint mailings round off to four decimal places.
For Postage Affixed round off to three decimal places.
Part Z is an optional, display-only part.
Sources
[1] PS Form 3602-N (July 2026), Postage Statement-Nonprofit USPS Marketing Mail, United States Postal Service (the Official source link on this page).



