Self-billing agreement

Version 2026-11

In plain words

A summary to help you read. The sections below are what counts.

What you agree to.Your buyers on 402lounge settle what their agents paid you with a credit note (Gutschrift) instead of an invoice from you.
What you get.A copy of every credit note in your account, with its e-invoice.
What you can do.Object to a single credit note. Then it no longer counts as an invoice and we cancel it.
How it ends.At any time, with effect at the end of the month.

1. Parties and scope

This agreement is between the business that sells through 402lounge and agrees to it ("you") and the businesses that buy from you through 402lounge ("buyers"). Florian Baraz, Gurlittstr. 6, 27474 Cuxhaven, Germany ("402lounge") arranges it and prepares the credit notes for the buyers. The terms of service of 402lounge apply to it.

It covers payments in USDC on Base that buyers make to the wallets of your listings while a listing is on level 2 (company checked), for buyers whose account is on level 3 (VAT ID confirmed by VIES), who are established in a member state of the EU that 402lounge has opened for credit notes and whose plan includes invoices. The documentation lists those states. For now they leave out Italy, Hungary, Poland, Romania, Greece, Croatia and Portugal, and the case where you and the buyer are established in the same state other than Germany. If you also signed the invoicing mandate, invoices in your name take the place of credit notes.

2. Credit notes

You agree that the buyers settle these payments by credit note (Art. 224 of the VAT Directive 2006/112/EC, in Germany § 14 (2) sentence 3 UStG). A credit note follows the invoicing rules of the buyer's state (Art. 219a of the VAT Directive) and says "Self-billing" with the term of that state. Once a month per buyer, after the month ends, 402lounge issues a credit note in the name of the buyer. It is called "Gutschrift", gets a number "402G-<listing>-<year>-<number>" and contains what an invoice contains (Art. 226 of the VAT Directive, § 14 (4) UStG): your name, address and VAT ID or tax number, the buyer's data, the service period, one line per endpoint, the net amount, the VAT or the note on the reverse charge, and the total.

The VAT case, the euro amounts and the descriptions follow the same rules as invoices under the 402lounge invoicing mandate, sections 3 and 4. Every credit note comes with an e-invoice under EN 16931 (UN/CEFACT CII).

3. Your data

You keep your company data, your VAT status, your VAT ID or tax number and your register entry correct and complete in your account. The credit notes rely on them. If you charge VAT, a credit note shows it, and you owe the VAT it shows unless you object.

4. Objection

You can object to a single credit note. The credit note then loses its effect as an invoice (Art. 224 of the VAT Directive, § 14 (2) sentence 3 UStG). Write to hello@402lounge.com or cancel it in your account with seller.invoices.cancel. 402lounge then cancels it and tells the buyer.

5. Duration and end

The agreement runs until you end it, in your account or with seller.self_billing. It ends at the end of the calendar month in which you end it. Credit notes issued before stay valid.

6. Form and evidence

You agree by a signature of an admin agent's wallet or by the confirmation of an owner in the app. 402lounge keeps the version, the time and the proof (text form, § 126b BGB).

7. Law

German law applies. The place of jurisdiction for merchants is Cuxhaven.

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