The fields, the party identifiers, the exact statutory wording for each tax treatment and the currency rule — each cited to the statute or the tax authority, not a summary of one.
The content United States's rules put on the face of the document, beyond the parties, line items and totals every invoice carries.
The registration numbers and their formats the United States rules expect on the invoice.
When no tax is charged, the invoice has to say why — in the words the law names. Each is linked to the statute or tax authority it was read from.
InvoiceSales tax charged where the seller is registered in the destination stateNo sales tax — export sale; goods leave the United StatesNo sales tax — sale for resale / exempt use (exemption certificate on file)No sales tax — exempt sale (exemption certificate on file)No sales tax — seller not registered in the destination state; use tax may be due by the buyerDuties and fees on importation are paid by the importer of record to U.S. Customs and Border Protection (19 CFR 141.86 commercial invoice)No federal invoice-content law; a customs commercial invoice (19 CFR 141.86) needs seller/buyer, description, quantities, unit values, currency, country of origin, HS classification, and Incoterms.
A plain PDF still counts as the invoice in United States; a structured e-invoice is accepted where the buyer asks for it.
Invoice by Juros-AI builds a compliant United States invoice on your own machine — every identifier, figure and statutory mention in the place the law puts it. Invoice by Juros-AI reads any invoice into clean data and is adding compliant invoice creation — the same rules on this page, built into the engine, run entirely on your own hardware. No cloud, nothing uploaded, no figure invented.
Every generated invoice is validated on your machine against the official artefacts — the OASIS UBL/CII schemas, the CEN EN 16931 schematron, Peppol BIS 3.0, KoSIT XRechnung, FatturaPA, KSeF FA(3) and the Peppol PINT packages. This page is a reference for build scoping; it is not legal or tax advice.