Professional Accounting and Tax services

Accounting is the foundation of a Company’s activity. A professional and reliable accountant is support for every enertpreneur. We will take care of your accountancy and tax planning.

We will get your accountancy in order

We restore the bookkeeping for the previous periods, summarize economic activities, and provide a complete set of accounts and all the necessary financial statements to investors, and offer reporting to financial and government offices.

Annual Financial Statement

We complete the mandatory Annual Financial Statement, control and submit it to the Commercial Register.

Service of being your contact person in case you are not a resident of Estonia

A commercial entity which is not a resident of Estonia and whose Board is located outside of Estonia should designate a contact person, who is empowered to receive any procedural or legal documents addressed to the entity.

OIS Büroo OÜ has the right to be such a person under activity license FIU000232.


Accounting support

We do the current accounts for primary documents and Company’s annual reporting. We offer our accounting support, whatever your Company’s legal form.

Payroll and tax calculation

We take care of calculating wage payments to workers and related to them tax payments. We facilitate the timely submission of declaration to Tax- and Customs Department and Statistics Department as well, if necessary.

Tax advisory services

Any company may find themselves in complicated situations. We will help solve tax questions in one-time deals as well as in full tax audit procedures. Any question, just ask. We will respond. The first consultation is for free.

About us

OIS Büroo OÜ has been a reliable advisor for our customers since 2004.

Our office is located in Tallinn but thanks to the power of the internet we can serve customers around the world. We support the program E-residency of Estonia. We are convinced that every customer who makes use of our accounting services is saving their time and money and stands ready to devote themselves to their main business activity.

satisfied customers
properly compiled annual general reports
years of professional experience

Why us?


Individual approach

We are always driven by the needs of your company. Extensive experience in this sector

gives us the confidence to find a solution that best fits your specific needs.


Remote servicing

We are able to provide remote services. We take documents in electronic form. We are free to communicate electronically.


We value your time

We answer your questions as soon as possible. We work in a timely and correct manner.


You will pay only for the ordered service

Pay only for the services which you need.

The services which are charged for the time are paid accurate to within 15 minutes. If there is no activity we submit zero declarations for free.

Useful links

Ask for free consultation

Write your question to us and we are sure to reply.

If your question is connected to taxation, payroll or calculation of profits, do not hesitate to ask us.

We will find a solution even to most complicated tax questions.

The first consultation is for free.

Saada päring


Olga Senjuškina

Head of OIS Büroo OÜ

I am effective in doing accounts for different companies of Estonia starting from everyday documents to annual reports. I am well aware of Estonian and Latvian tax laws and nuances relating to them.

Competently organized accountancy system provides a basis for right financial decisions and helps to prevent losses from possible misstatements as well as save time and money.


2003 – Tallinn Technical University, Department of Economics and Administration, MA degree

1997 – Tallinn Technical University, Departments of Economics and Economic accounting, BA degree

Olga small

Contact us!

Feel free to contact us.

We are always ready to offer our assistance.

Send your request by email or phone.


Office hours:

Monday – Friday from 10 a.m. to 5 p.m.


+372 5654711
+372 55561361


Peterburi tee 46 – 307,
Tallinn 16321