About us


About Us

Welcome to my fascinating world of taxes, sailing, and fast cars! I am a fearless sailor who isn’t intimidated by the turbulent waters of the Polish tax legislation. My professional path is an adventurous journey filled with challenges, and at its core lies my passion for taxes.
I have worked in an international automotive corporation, where I had the pleasure of coordinating the integration between SAP sales system and accounting. However, what truly delights me is eliminating unnecessary and time-consuming processes in my clients’ businesses. I find joy in helping them achieve greater efficiency and simplifying their tax obligations.
I am a lifelong learner, constantly seeking growth opportunities. I have completed two degrees – psychology and law – and pursued postgraduate studies in business management. Currently, I am working on my PhD thesis in international tax law, specifically focusing on the taxation of AI labor. Additionally, I am in the process of taking examinations to become a certified tax advisor.
Life, to me, is a grand adventure that combines my passions for sailing, fast cars, and the intricacies of taxation. I am always ready to face any challenges that come my way on this journey. If you are in search of an expert who can help you navigate the complex world of tax regulations and introduce innovative solutions, I am here to assist you.

Together, we can embark on this exciting tax expedition and achieve success! 

Edyta K. Mencel

Edyta Mencel

– founder of the Tax Office



Satisfied customers

9452 +

Posted documents

11 +

Years of Experience


Smiling employees

Who we are

Our Experts

Edyta Mencel

Edyta Mencel

Founder of the Tax Office

Taxes are an interesting and challenging career path. I love the sea, sailing and fast cars, I am not afraid of the turbulent waters of Polish tax legislation. I have worked in an international automotive corporation for 12 years , where I coordinated, among others, CRM systems implementation, which is my another hobby. I enjoy nothing more than the elimination of unnecessary and time-consuming processes in my clients’ companies. I like to learn more, and graduated in both psychology and financial law as well as postgraduate studies in enterprise management. Now I am working on a PhD in international tax law (taxation of robots) and I am currently examining a tax advisor. I treat life as a great adventure. 

Ewa Śląska

Ewa Ślaska

Independent Accountant, Office Manager

For many years I have worked in the bank, but all that time I have wanted to work in the accounting – all that order! I graduated from career counseling and used the acquired knowledge to find the perfect place for myself. I found my calling in taxes and accounting. I really appreciate accuracy, a job well done and human kindness. Now I make sure that tax audits leave our clients completely bored with the lack of any mistakes in accounting. My job is to keep entrepreneurs safe and I am sure that I do my job well.


Anna Szukstuł

HR and Payroll Specialist


Yunus Sirin

Junior Accountant, Consultant for Clients from Turkey

I graduated with a degree in finance and accounting from ACCA. With my background in finance, I am able to understand complex financial processes and transform data into meaningful solutions. At the same time, the ability to build lasting relationships with clients based on cooperation and trust is extremely important to me. If you are looking for a professional who combines financial skills with customer service, I encourage you to contact me. Together we can achieve your financial goals and build a long-term relationship based on mutual success.

I work as a junior accountant at Mencel Tax Law Firm. My responsibilities include meticulous processing of expense and sales invoices, recording bank statements and preparing monthly financial reports. Additionally, I am responsible for the seamless closing of monthly company settlements.

I effectively operate Symfonia, Comarch ERP Optima, Gofin and Saldeo software. My experience with these applications enables me to accurately analyze financial data and support management decision-making.

My fluency in Turkish and Polish enables me to facilitate communication and cooperation between companies. As a result, I am able to communicate effectively in both environments where Turkish and Polish are spoken. I also provide translation services as needed, assisting in translation and problem-solving processes


Julia Łukasik

Junior accountant

I am passionate about accounting, tax regulations and all aspects of finance. My foray into the financial world began with a deep interest in how entrepreneurs create and shape their businesses.

One area that particularly attracts my attention is tax law. I enjoy delving into the nuances of this law in order to help my clients comply with it and maintain accurate accounting with accuracy and understanding.

My work involves making accurate tax calculations and preparing the necessary tax returns. My work contributes to compliance and is a key element in maintaining financial clarity for businesses.

I am constantly striving to improve my skills and expand my knowledge in order to stay abreast of the latest accounting trends. My previous experience in manufacturing company accounting has allowed me to gain a unique perspective, which is now at your disposal.


Ruzanna Hovhannisyan


With passion and precision in the field of finance, I am ready to provide you with professional services as a good accountant.

I am a finance and accounting graduate and have been in the profession for 9 years.

My interest in numbers and meticulousness in analysis make your financial success mine as well.

It is said that the devil is in the details, so I, by all means, try not to forget any, making sure that even the last penny finds its proper place.

I always strive to improve my skills, because I believe that by developing myself , I can better serve my customers.

I promise not to let any number escape from my hands!


Izabela Oszkiel-Kaliska