Vendor Invoicing Portal & Electronic Reporting System

Government e-invoicing solutions made simple

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Contact Information

Monday, September 23, 2019

Customer Service

200 Administration Road

Oak Ridge, Tennessee 37830


Phone: 1-888-251-3557


Technical Support


Phone: 1-301-903-2500 or Toll Free 1-866-834-6246, Option 4 (Corporate Business Systems)
Hours: 8am-6pm EST Monday-Friday



General documents


Welcome to VIPERS

Terms Of Use, General Disclaimer, Security Notice

VIPERS is a web based system that allows government vendors to enter invoices electronically and delivers these invoices to other Energy related site(s) through a secure portal. VIPERS was designed by the Department of Energy (DOE) and supported by Chickasaw Nation Industries / Global Solutions for DOE Entities and their vendors. To see if the Energy related site that you are doing business with is enrolled in VIPERS click here.

Browser Compatibility

  Windows Mac
Chrome Chrome Supported Supported
Firefox Firefox Supported Supported
Internet Explorer Internet Explorer 11+ (recommend latest) Supported n/a
Opera Opera Supported Supported
Safari Safari n/a Supported
Note: It is recommended that you always use the latest browser version.

Note to tablet users: VIPERS can be used on any tablet that supports one of the listed browsers.

Click here to perform a browser test.


2018 VIPERS Survey Results
Thursday, September 13, 2018

The 2018 VIPERS Survey Summary Results have been posted in the Documents section for users that are interested.  The team has reviewed the individual comments and will take suggestions into consideration. 


A common question from the survey responses was on running reports.  Within VIPERS, reports are located under "Actions" and "Invoice Status/Funding."  After choosing a date range and selecting "Run Report", the Invoice Status report appears.  This is the screen that you should use if you need to cancel a pending invoice, view invoice documents, add additional supporting documents to your invoice, and view invoice status.  Please note that you can only add supporting documents to an invoice up until the time that the invoice has been approved by the approving official in our workflow (when the status is updated to Approved on the report).


To view funding available on your order, click on the money bag icon under the "Funding" column on the Invoice Status Report. This report can also be exported to Excel.


For additional tips and tricks, visit our FAQ section located on the Main page, on the bottom left side of the screen. Inquiries can also be sent to

Challenge Questions
Thursday, September 13, 2018

For forgotten passwords, VIPERS now includes a Challenge Questions feature.  To change or to set your new challenge questions, go to "Actions" and "Update Challenge Questions."

EDI 810
Thursday, September 13, 2018

Electronic Data Interchange (EDI) version 810 is now available for vendors.  To sign up for this feature, please contact

EDI 810
Friday, July 29, 2016

Electronic Data Interchange (EDI) version 810 will be available for vendors beginning on September 1.  For more information, please contact VIPERS Support.

XML now available
Monday, June 27, 2016

Beginning on July 5, 2016, vendors will be able to submit XML files through VIPERS.  For more information, contact VIPERS support at 888-251-3557.  EDI 810 will also be available soon; and updates will be posted to the News section of VIPERS as this progresses.

Launch of new VIPERS
Monday, June 27, 2016

The new version of VIPERS will be available on July 5, 2016.  Expect to see a more user friendly design, to include a standard invoice form for all users.  Many of the new features that have been introduced were recommended by the VIPERS user community via our annual survey.   The FAQ section has been updated for the new VIPERS; and the Online Help module will be up and running very soon.

Why Us

Wastren Advantage, Inc

VIPERS is an excellent billing tool. The process is simple and it allows us to easily track our invoice from submission to payment.

Sherry J. McCreary - Finance Manager

H&T Enterprises, Inc

The VIPERS system is one of the best and most user friendly systems that we work with. It requires minimal data entry... It has a file attachment limit that is the highest that we have seen so far among the various government vendor payment systems. Its internet connection is relatively fast, stable, and rarely disruptive.

William Hall, Jr. - President

Credit Bureau, Inc

My office manager continues to forward comments about the benefits of VIPERS. From initial activation through payment receipt, the entire system could not be easier to use. We especially appreciate the invoice tracking feedback. This ensures there are no questions about the invoice and no delay in its processing. VIPERS has eliminated any thought of "red tape" in government services.

Kathy Edwards - President