Ingyenes és környezettudatos online számlázó

Self-billing function

Read more about our self-billing feature below:

What is self-billing?

Self-invoicing is a form of invoicing where the invoice is issued by the purchaser of the goods or the recipient of the service for a given transaction.

Mandatory rules

1. The mandatory content of the invoice must include the term "self-billing" if the goods/services are not issued by the person who performs the transaction (supplier) but by the person who acquires the goods/services (buyer).  

2. Supplier's name: the party providing the service is indicated on the invoice as the invoicing party (regardless of the fact that the invoice is not physically issued by the supplier but by the other party).

3. The agreement may be specific to a single transaction or general. It must specify the method and conditions of invoicing.

4. Invoice block, serial number range: a new unique invoice block and a new unique serial number range are required for invoicing (should not be confused with the invoicing company's own invoices).

5. Invoice issuer is obliged to forward the invoice to the "Small" company for accounting, tax control.

6. Responsibility for the data on the invoice is joint unless otherwise stipulated in the contract.

7. REPORTING OBLIGATION to the tax authorities: the user of the software, i.e. the invoice supplier, is responsible.

8. NAV ONLINE INVOICE DATA PROCESSING LIABILITY: the responsibility of the taxpayer legally issuing the invoice, the "Small Company" (not the "Big" company physically creating the invoice).

IMPORTANT: Self-invoicing legally applies only to the fact of issuing the invoice, all other taxpayer liabilities remain with the taxpayer and do not automatically transfer to the invoice issuer. Therefore, the taxpayer's responsibility to report the invoice to the tax authorities or to submit the NAV Online Invoice Data remains the taxpayer's responsibility of the self-invoicing "Small" company.

Self-billing process in

1. The both self-billing "Big Company" and invoicing "Small Company" must register for
2. Our customer service will activate the Self-billing function in the Integrations menu if the Individual Service Contract has been concluded.

3. The "Small Company" must enable the "Self-billing via the integration interface" option:

4. A self-billing API token is generated for the "Small" company. 

IMPORTANT: the self-billing API token is NOT the same as the invoicing API token for the "Small Company". 

The Self-billing API token is only used for self-billing. 

5. The "Small company" transfers the token of the self-billing API to the "Large company". The transfer can only be done mechanically, there is no possibility to query via API (for security reasons).

6. Self-invoicing "Large company" can self-billing using its own invoicing API token and the "Small company" self-billing token. In this case, the "Large Company" issues an invoice to itself on behalf of the "Small Company".


The "Big Company" CANNOT abuse the token, as it can only issue invoices for itself, it cannot issue invoices to third parties on behalf of the "Small Company".

7. Based on the data sent via the API, generates the invoice on behalf of the "Small Company", on which the self-billing "Large Company" is the customer. 

8. The invoicing "Small company" can view and download the invoices issued on the Invoice list page, while the self-invoicing "Large company" can find the invoices generated under the Incoming invoice menu or download them via API by calling DownloadInvoice. 

Self-billing flowchart

Self-billing process description in the API documentation

The description of self-billing feature can be found in the API document in the downloadable documents:

Self-billing cost

Ask for our individual offer for self-billing!

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