Los Alamos National Labs with logo 2021

Invoicing and Payment

We seek to do business with qualified companies offering value and high-quality products and services.

Invoices and payment under purchase orders or subcontracts


Invoice via the Ariba Business Network if your purchase order number begins with EP (ex: EP1234):

  • If you have a standard account, you will either click the link for the PO in the original
    email that the PO was sent to you, or you can send yourself another copy of the
    email from within the order in Ariba. To send yourself another copy, click the order in
    Ariba, then click the 3 dots to the right of the order. Once you click the link in the
    email and sign in, you should see the option to invoice the order on the top of that
    PO. You will not go the Contract PO area to invoice the order. This is why there is no
    number to choose from.
  • If you have an Enterprise account, you can invoice directly within the PO in your
    orders in Ariba.


If you wish to receive payment electronically, also complete and return the Electronic Funds Transfer Authorization Form (pdf).

If you have already submitted an invoice and believe the payment check to be missing, use the Outstanding/Missing Check Form (pdf).

New Mexico Non-Taxable Transaction Certificate requests

For NM NTTC requests, complete the NM Non-Taxable Transaction Certificate (NM-NTTC) (pdf), then mail or fax it to the following:

Los Alamos National Laboratory
P.O. Box 1663
Accounts Payable, MS P240
Los Alamos, NM 87545
email: nttc@lanl.gov

Contacts for Purchase Orders, Subcontracts, Invoices
Descriptions Lab Contact Phone
AP Customer Service apcustomerservice@lanl.gov (505) 667-5197
Integrated Contract Orders (ICOs),
DOE Miscellaneous Orders (MOs)
doepac@lanl.gov (505) 667-5197
Special Payments (Non-PO),
Non-PO Communications
specialpayments@lanl.gov (505) 667-5197