Built for Hungary

NAV Online Számla
compatible invoicing

Connect your business once and let Minerva issue invoices that meet Hungarian tax requirements — submitted to NAV automatically on your behalf, from the same conversation where the booking happened.

One-time NAV setup Automatic submission NAV-compatible PDF

How it works

1. Connect once

Enter your NAV technical user credentials in the Minerva app. This is a one-time setup — nothing to repeat per invoice.

2. Minerva issues the invoice

When the work is booked and paid for, Minerva creates an invoice that meets Hungarian tax requirements, with sequential numbering.

3. It goes to NAV automatically

The invoice is submitted to the Hungarian tax authority (Online Számla) on your behalf, and you can follow the submission status.

What you get

NAV-compatible PDF

Your client receives a PDF invoice that meets Hungarian requirements.

Submission status tracking

Every invoice shows where it stands with NAV, so you are never guessing whether something went through.

Sequential numbering

Minerva keeps the invoice series unbroken.

One inbox for everything

Booking, reminders, Revolut payment and the invoice all live in the same client conversation — on Messenger, Instagram, WhatsApp or in-app chat.

Works from your phone

Minerva runs on the web, iPhone and Android. Issue an invoice between two clients without opening a laptop.

EU-hosted and GDPR-compliant

Your data stays in the EU and is never used to train third-party models.

Frequently asked questions

Do I need separate invoicing software?

No. Invoicing is part of Minerva. The same assistant that books the appointment and takes the payment issues the invoice, so the job and the invoice never drift apart.

What do I need to set it up?

Your NAV technical user credentials, entered once. After that Minerva submits invoices to the Hungarian tax authority on your behalf without further setup.

Are the invoices actually submitted to NAV?

Yes. Invoices are submitted automatically to the NAV Online Számla system, and you can see the submission status for each one.

What does the client receive?

A NAV-compatible PDF invoice.

How is invoice numbering handled?

Minerva keeps sequential invoice numbering, so the series stays unbroken.

Does this work outside Hungary?

NAV Online Számla submission is specific to Hungarian businesses. Minerva's booking, reminders, rescheduling and unified inbox work anywhere and in any language.

Ready to stop invoicing twice?

Set up your business in minutes. Minerva books the job, takes the payment and files the invoice with NAV — without leaving the chat.