# Online Számlázó

> Mobile invoicing system for the Hungarian National Tax and Customs Administration. (iPhone/iPad app by Nemzeti Ado- es Vamhivatal.)

- Source: https://appshunter.io/ios/app/online-szamlazo/id1487463552 (this page in markdown: same URL + `.md`)
- Developer: [Nemzeti Ado- es Vamhivatal](https://appshunter.io/developer/857762451)
- Category: Finance
- Price: Free
- Rating: 4.70/5 from 10 App Store ratings
- Age rating: 4+
- Requires: iOS 12.0 · 47 MB
- Languages: English, German, Hungarian
- Released: 2020-06-27
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/online-szamlazo/id1487463552/reviews.md

## What is Online Számlázó?

Mobile application for Online Invoicing System of the National Tax and Customs Administration of Hungary (NTCA) 

The Online Invoicing mobile application is a free invoicing program created by the NTCA, which is also downloadable to smart devices with iOS operating system. 

Role of the application 
The application unifies important features and operations of Online Invoice System and Online Invoicing Program in a portable format. 

Conditions necessary for using the application 
For using the application, the user must register for the Online Invoice System and must meet the following conditions: 
•	Operating system iOS 11.0 or higher version 
•	Active internet connection 

Operations that can be performed in the application, for instance: 
•	Issuing invoices: usual invoice, prepayment invoice, invoice modifying the original invoice not issued by this software, invoice cancelling the original invoice not issued by this software 
•	Submitting real-time data on issued invoices to the NTCA 
•	Viewing issued invoices in PDF format and forwarding them 
•	Creating and modifying customers 
•	Issuing invoices with customer in them  
•	Creating and modifying products 
•	Issuing invoices with products in them
•	Querying statistics 
•	Viewing incoming and outgoing invoices 
•	Approval of technical cancellations 
•	Querying taxpayers 
•	Managing invoice pads 
•	Access to news published in the Online Invoice System  

After having the application downloaded, it is possible to enter the application via the Online Invoice System, with a QR code identification. 
It is possible to enter the application with primary and secondary user ID as well. Primary user can change rights of the secondary user in the Online Invoice System. 
It can be seen in menu of the application, what functions correspond to which web interface system (Online Invoice System, Online Invoicing Program). 
Within the Settings menu, it is possible to change the language of application to English or German.

## Key features

- Issue various invoice types
- Submit real-time tax data
- View and forward invoices
- Create and manage customers
- Create and manage products
- Query statistics
- Manage invoice pads


## Frequently asked questions about Online Számlázó

### What is Online Számlázó?

Online Számlázó is a free mobile application that unifies important features of the Online Invoice System and Online Invoicing Program for portable use. It allows users to issue, modify, and cancel invoices, submit real-time data to the NTCA, and manage customer and product information.

### How do I use Online Számlázó?

To use Online Számlázó, you must first register for the Online Invoice System and meet the operating system requirements (iOS 11.0 or higher) and have an active internet connection. You can then log in using QR code identification, or primary and secondary user IDs.

### What types of invoices can I issue with Online Számlázó?

Online Számlázó allows you to issue usual invoices, prepayment invoices, and invoices that modify or cancel original invoices not issued by this software.

### Can I manage my customers and products with Online Számlázó?

Yes, the application enables you to create and modify customers, and create and modify products. You can also issue invoices that include these customers and products.

### Does Online Számlázó have ads?

No, Online Számlázó does not contain advertisements. It is a free application provided by the NTCA.

### What languages does Online Számlázó support?

The application can be set to English or German through the Settings menu, in addition to its primary language.

### How often is Online Számlázó updated?

The latest version of Online Számlázó is 1.25, and it was last updated on April 16, 2026. This indicates a consistent update schedule for the application.

### What devices is Online Számlázó compatible with?

Online Számlázó is designed for iOS devices, specifically iPhones and iPods, requiring an operating system of iOS 11.0 or higher.

## Version history (last 5 releases)

### 1.25 — 2026-04-16

Multiple bank account numbers can be entered in the account issuer's details, and the default format of the account – whether electronic or paper-based – can also be set.

### 1.24 — 2025-12-17

This version includes a new validation of the referenced invoice number, and the unit price can be specified with four decimal places.

### 1.23 — 2025-12-09

The new version follows the current legal regulation of CDV control numbers and allows the selection of “domestic VAT taxable person” type customers in the case of an EUE VAT rate (a non-reverse charge transaction carried out in another Member State).

### 1.22 — 2025-10-08

In this update, we have clarified the calculations and validations related to invoicing, improved the management of discounts, and refined the management of templates and tax bases.

### 1.21 — 2025-09-15

In this update, we have modified the process of recording Hungarian tax numbers upon invoice issuance and customer management, and we also made the exchange rate handling more accurate.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*