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Getting Started

1. Are vendors mandated to use IPP?

There is currently no government-wide mandate to use IPP. However, individual departments and agencies may decide IPP is mandatory for their vendors.

2. What vendors are eligible to participate in IPP?

Vendors who are business partners with federal agencies are eligible to participate in IPP. The federal agency must have an IPP Disburser account or be represented in a general IPP agency account. Click here to view the list of participating agencies.

3. Are there fees associated with IPP use or set up?

No. There are no fees for services or support. The U.S. Department of the Treasury provides the IPP service free of charge to agencies and their vendors. 

4. How do vendors benefit from using IPP?
  • IPP makes it easier for vendors to do business with the government.
  • Vendors can replace paper-based processing with digital file exchange for all federal agencies using IPP.  
  • Vendors may download purchase orders and remittance files, and upload digital invoices. 
  • IPP reduces invoice approval time cycles and speeds payment processing. It also supports invoice aging reports and payment due analysis.
5. Is IPP part of the System for Award Management (SAM)?

IPP is not integrated with SAM. All government vendors must continue to maintain their account data in the SAM registry and activate it annually. IPP works directly with agencies and their vendor files, which are updated using the SAM.

6. Is the information in IPP secure?

Yes. IPP is hosted within Treasury’s private infrastructure with rigorous security audits to ensure the security of all data within the infrastructure. The IPP application also meets Federal Information Security Management Act (FISMA) requirements and is assessed annually to ensure compliance. IPP utilizes multi-factor authentication to ensure that only legitimate users have access to IPP. User sessions are secured using Hypertext Transfer Protocol Secure (HTTPS) and Transport Layer Security (TLS).

7. Does IPP have any minimum system requirements?

IPP is a web application and can be accessed from anywhere. However, to ensure optimal user experience, we recommend the following minimum operating system and browser requirements to access IPP: 

  • Operating System: Windows 10 and above or Mac OS X 10.9 or higher
  • Web Browser: Microsoft Edge or higher or Apple Safari V7 or higher
  • Browser Security Protocol: Enable Transport Layer Security (TLS) version 1.0 (enabling TLS 1.1 or TLS 1.2 is recommended where possible)
8. As a collector who uses 3rd party for billing services, how do I give them access to my IPP account?

The Collector Administrator gives access to 3rd party vendor user who are considered collector users for that account.  The 3rd party vendor must accept the terms and conditions in the "Vendor Participation and Rules of Behavior Agreement" during their initial login. 


9. What steps must vendors take to enroll in IPP?

Vendors that are required to submit an invoice through IPP do not need to contact IPP to enroll. Vendor enrollment will be initiated by the agency with whom they are doing business. Once enrolled by an agency, vendors will receive an email from IPP asking them to either use an existing or create a new or account.

10. How soon can a vendor use IPP after enrollment?

Once an agency has enrolled a vendor, the initial vendor administrator user will receive an email from IPP asking them to either use an existing or account or create a new one. After creating an or account and configuring their multi-factor authentication options, the initial administrator can log into IPP.

11. Does IPP accept enrollments of vendors with multiple Taxpayer Identification Numbers (TINs)?

Yes. IPP will enroll a vendor with all the TIN values recorded on the sponsoring government agency's vendor master file. IPP will add additional TIN values as reported by other agencies.

12. Once a vendor is activated and the initial user is provisioned, does he or she have administration tasks?

Yes. The initial Collector User is assigned the administrator role. He or she will create all other accounts users, create and assign user roles, and maintain company profile information and account system preferences. The initial administrator user may create other administrator users and assign e-mail notifications to users.

13. How is the initial administrative user contacted?

 The initial vendor administrator user will receive an email from IPP ( asking them to either use an existing or account or create a new one.

14. What do the initial administrative users need to do?

The initial administrative user should set up other user accounts, including other administrators. At least two administrators are highly recommended to assign user permissions.

15. How does a vendor engage with IPP agencies?

Once enrolled in IPP, vendor users may contact IPP agencies listed in the IPP agency directory to initiate IPP interaction. Each active agency initiates digital purchase orders, invoice file exchange and payment information.

16. Is there a limit to the number of users in a vendor account?

There is no limit to the number of users an Administrator may set up in an IPP Collector account. The initial administrator user may create new users or additional administrator users. Administrators set up and manage user accounts and permissions. 

17. Are vendor users able to configure their personal e-mail notification selections and schedule?

In IPP, the vendor administrator configures event-driven e-mail notifications and schedules for their users. Once a vendor user completes enrollment and logs into their account, they may view their notification settings in the Preferences set-up section.

18. May I change the company name of my IPP vendor account?

Yes. To change the name of your vendor account, go to the Admin Tab and select “Company Information.” Then simply click on the Company Name link and change the information.

Purchase Orders

19. How does IPP support digital purchase orders?

Agencies may send digital purchase order, blanket purchase orders and change order files to IPP where they are posted to the associated vendor for online review and download. Vendors may also “flip” online purchase orders into digital invoices.

Digital purchase orders include schedule and distribution detail. All versions are saved when changes are recorded. Purchase orders are also linked to associated invoices and payments.

IPP will not replace agency ERP procurement systems, which are the authoritative source systems for all IPP purchase order transactions.

20. How does IPP support purchase order (PO) batch download?

Vendor users may create PO batch download files of selected orders formatted in XML (preferred) or CSV format.

21. Does IPP display purchase order (PO) changes?

IPP supports version management of online documents. Change orders are versioned and linked for audit trail display.

22. How does IPP support digital invoice files?

IPP supports online invoice creation. Users may create an invoice online by "flipping" a purchase order already in the system.

23. Does IPP support credit memos?

Yes. IPP supports credit memo creation and processing for agencies and their vendors provided the agency allow credit memos.


24. How does IPP help resolve invoice disputes?

IPP allows agency and vendor users to add comments and attachments to invoices. The same version of an invoice will be displayed to both parties online.

Currently, the vendor and agency will communicate directly to resolve a dispute then submit changed or new versions to IPP.

25. What payment status values does IPP report?

IPP reports payments with the following status values to vendors: settled and settled reduced.

Reduced payment offset details are reported in IPP.

26. Does IPP display debt offset details for reduced payments?

Reduced payments are created by the Treasury Department’s Debt Management Service based on outstanding debt associated to the vendor payee.

Details about the debt are displayed in IPP only if the original payment was requested by the agency using a special IPP format. If offset details are included with a reduced payment, they may only be viewed by users with a specific permission assigned by the Collector Administrator.

27. Does IPP report payments returned by banks?

No. IPP will not report payments returned by a bank at this time.

28. Does IPP support remittance data download?

Yes. IPP supports remittance download for vendor users. Vendors may select the remittance records to download and export the results in a .CSV file.

29. What data is included in a remittance data download file?

The IPP remittance download file includes the following data:

  • ACH Trace Number
  • Vendor Name
  • Payment TIN
  • Payee Name
  • Agency Disburser Name
  • Agency Payer Name
  • Payment Status
  • Payment Amount
  • Payment Issue Date
  • Invoice Number
  • PO Number
  • Total Invoice Amount
  • Discount Amount
  • Bank Name
  • Last 4 of Bank Account
  • Remittance Addenda

Payment Information

30. Does IPP manage both CCD+ and CTX payment information?

Yes. IPP accommodates both CCD+ and CTX remittance information on payment report pages, as well as remittance data download functions.

31. What payment notification options does IPP support for vendors?

IPP supports two notification options for vendors:

  • Payment notification without remittance detail
  • Payment notification settlement report with remittance detail

Vendor users may also elect not to receive e-mail notifications associated with payments.

32. Does IPP e-mail notification text include a link to the application?

Yes. IPP notifications generated by the vendor include a link to the log-in page.

33. Are there any dollar value limits to IPP transactions?

There are no dollar limits for transactions displayed in IPP. Invoices are subject to validations set by agencies, and these validation rules may include limits for dollar amounts in invoice records.

34. Will IPP support online payment search and download?

Yes. IPP Collector users may log in and view payment report pages. They may filter their reports and remittance download by agency payer name, payment date range and payment amount range.


35. What are the IPP hours of operation?

IPP services are available 24 hours a day, seven days a week.

The IPP Customer Support Team is available to assist users Monday through Friday (excluding federal holidays) from 8 a.m. to 6 p.m. Eastern and can be reached at (866) 973-3131.

36. What help services are available and are they fee-based?

The IPP Customer Support Team is available to answer vendor questions, provide assistance with log-in, and troubleshoot any issues encountered. In addition, the IPP application has help links for all major functions.

Customer support is provided free of charge to agencies and their vendors. In addition to the toll-free number (866-973-3131), vendors can contact the IPP Customer Support Team at

37. Is IPP Section 508 compliant?

We strive to have the IPP site in compliance with the accessibility requirements of Section 508 of the Rehabilitation Act. It is an ongoing effort as new functions are tested and added.

Please call (866) 973-3131 or e-mail us at to report any compliance issues you may find on the site.

38. Does IPP provide invoice and payment information for Department of Defense (DoD) contracts?

No, not directly. Currently, Department of Defense (DoD) agencies use Wide Area Workflow (WAWF) for invoicing. However, some DoD components that use shared acquisition services to purchase on their behalf, such as the U.S. Department of the Interior (DOI) Interior Business Center (IBC) Acquisition Services Directorate (AQD), approve invoices through IPP because the DOI AQD uses IPP for invoicing.

39. Is IPP part of the Wide Area Workflow (WAWF) run by the DoD?

IPP and WAWF are different systems provided by different government agencies. IPP is an electronic invoicing application provided by the Treasury Department while WAWF is offered by the DoD for affiliated agencies.

40. Is there a plan to combine IPP with WAWF?

No. There is currently no plan to integrate the two systems.


Customer Support

(866) 973-3131

Standard Operating Hours
8:00 AM to 6:00 PM ET

*Except Federal Holidays