Comprehensive accounting service

At MTA Group AS, our work with clients is based on modern accounting systems that allow access to documents from anywhere in the world where there is Internet access.

Access to the system accounting system

Our clients are given access to an accounting system where they can not only check their company's performance, but also manage their invoicing. All documents related to the company's activities, such as bills, invoices or bank statements, can be easily sent via e-mail.

Mobile applications and banking integration

With our mobile apps, recording employee working hours becomes easy and convenient. For larger companies, we also offer integration of the accounting system with banking, so that invoiced expenses or payments are automatically posted and redirected to the bank for payment.

Customised services

We tailor our services individually to the needs of each client in order to maximise time savings, reduce accounting costs to a minimum and ensure simple and efficient cooperation. Choose us and gain comfort and save time with our modern accounting solutions!

Who can benefit?

Would you like to transfer your company's accounting to us?

We work with modern accounting systems

Do you already have your programme? We can continue working on it, adapting to your preferences.

Construction industry

Cieszymy się, że możemy wspierać mnóstwo firm budowlanych! Nie ważne, czy prowadzisz działalność jednoosobową, czy zarządzasz firmą z ponad 100 pracownikami. Dzięki naszej wiedzy i doświadczeniu, proponujemy rozwiązania, które sprawią, że prowadzenie firmy będzie prostsze. 

Beauty industry

We are always up to date with the latest regulatory changes. We understand that running a beauty salon requires a specialised approach to accounting. That's why we offer tailor-made solutions for every salon.


As an accounting office with 10 years of experience, we have worked with many well-known restaurants in and around Oslo. Our knowledge and skills have allowed us to develop unique solutions that you will not find in other accounting offices.


Our accountancy service specialises in online shops. We understand the peculiarities of e-commerce business and tailor our services to the individual needs of each client. We offer a comprehensive bookkeeping service, including tax returns, handling international transactions and cost optimisation advice.


We specialise in providing accounting services to companies operating in the import and export industry. We are familiar with the challenges of international transactions and customs declarations. We offer services tailored to the specific nature of foreign trade.


Whatever your industry in Norway, we guarantee a top-quality service.
We successfully support transport companies, coaches, translators, dentists, doctors, personal trainers, photographers and many other professionals. Our team has experience in managing small hydroelectric power plants and law firms.

Let's start with a conversation.

During the free 15 minutes, you will have the opportunity to test our competence in person. Together we will identify the initial solutions that will be crucial for your business.

Step-by-step cooperation

Interview and exploration of customer needs

Let's meet and talk about your expectations. We hold an interview or meeting if necessary. We explore your needs, listen to your expectations and together we look for the best solutions.


Want to know how much it will cost? We offer you a detailed estimate for the annual cost of bookkeeping so that you are in full control of your finances.


Let's get started! We set a start date and sign a contract. Conveniently and quickly, you can do this through your bank ID. If you do not have a bank ID, you can print out the contract and sign it by hand.

Launch documents

Everything you need to get started. You will receive a starter pack of documents from us, including the necessary knowledge for the entrepreneur and instructions for using the 24sevenoffice system.


We adapt to your business. If it is appropriate for your business, we integrate your bank and activate invoicing with your KID number. We integrate additional systems if appropriate.

Ongoing cooperation

We are with you every step of the way. Every client sends us documents every month or we receive them on an ongoing basis from suppliers in the case of an integrated bank. You will receive two account managers from the very beginning - a business and tax adviser and an accountant who are always ready to help you.

Why choose us?

Choose us and experience a friendly, professional service that will contribute to the success of your business! We have been operating in the Norwegian market since 2011, gaining experience both working as an employee and running our own businesses.