"in addition to invoice" is correct and usable in written English.
You can use it when you are referring to something else along with an invoice, for example, "In addition to invoice, I will also need a copy of the receipt."
In addition to an attorney-generated invoice, the director should be presented with an invoice detailing the amount owed and due date for payment during a board meeting.
An invoice includes a header with your name (or your business name), your address and phone number, and your company logo, in addition to a detailed account of services rendered, payment owed, and payment instructions.
The costs of ICD are invoiced in addition to the diagnosis-related groups and also covered by the health insurance system.
It derived $4 million in revenues in its 2001 fiscal year from NCFE for various "consulting services," in addition to being owed another $4.3 million in unpaid invoices from NCFE.
The feature is ideal for use with Facebook's numerous Buy and Sell groups as well as Facebook Marketplace, in addition to being an easy way to send PayPal invoices in general.
A large portion of the recovery, in addition to the former Dewey partners' contributions, will come from collecting Dewey's outstanding legal invoices.
(In addition to her Bruce work, she helps artists organize themselves by teaching them to write grants, clean their studios, invoice for their work, and so forth. "I help them help themselves," she said).
In addition to cards, the PayPal Here app allows you to accept payment in the form of checks, cash, and invoices.
In addition to crowdfunding, alternatives represented include pension-led funding using directors' existing personal pensions to raise capital for their business, and invoice finance aimed at raising short-term working capital quickly.
