Tax and accountancy,
conflict resolution center

Costmasters has been helping SMEs and non-profit companies fulfill their accounting and tax obligations since 1994.

Tax and accountancy,
conflict resolution center

Costmasters has been helping SMEs and non-profit companies fulfill their accounting and tax obligations since 1994.

Our services

Costmasters offers two areas of services: tax and accounting, and conflict resolution..

Tax and Accountancy

General accounting
Analytical accounting
Tax issues
Management reporting
Financial planning

Conflict resolution

Legal witness
Technical advisor
Mediator
Legal representative

Our services

Costmasters offers two areas of services: tax and accounting, and conflict resolution..

Tax and Accountancy

General accounting
Analytical accounting
Tax issues
Management reporting
Financial planning

Conflict resolution

Legal witness
Technical advisor
Mediator
Legal representative

Does your company need guidance?

It all began with audit, management control and financial management. Only then did Costmasters launch accountancy services. We know what SME managers are going through every day, and the questions they're asking.

In terms of accounting and tax issues, we do not merely prepare your VAT and tax filings. That is only the beginning. Our employees are there to listen to your concerns, whether during periods of growth or in times of difficulty. They will help you to take a step back, to work more ON and less IN your enterprise. 

Taking a step back helps you to advance.

We are convinced that while SMEs have many problems in common, each situation is specific to a given business or non-profit company. That is why we do not always have a general response, and often take a more personalized approach..

Do you have a project or a problem to resolve? Let's talk.

Does your company need guidance?

It all began with audit, management control and financial management. Only then did Costmasters launch accountancy services. We know what SME managers are going through every day, and the questions they're asking.

In terms of accounting and tax issues, we do not merely prepare your VAT and tax filings. That is only the beginning. Our employees are there to listen to your concerns, whether during periods of growth or in times of difficulty. They will help you to take a step back, to work more ON and less IN your enterprise. 

Taking a step back helps you to advance.

We are convinced that while SMEs have many problems in common, each situation is specific to a given business or non-profit company. That is why we do not always have a general response, and often take a more personalized approach..

Do you have a project or a problem to resolve? Let's talk.

Our philosophy

Accounting is not just "bean counting" or completing VAT forms.
It is foremost to ascertain that your legal deadlines are met in the most efficient manner possible. Then comes tax optimization, always within legal bounds. It's also a management tool, provided to help you make the right decisions, e.g., by proposing dashboards tailored to your sector and company.


We help companies in their daily lives, in both good times and bad.


Over the years, conflict resolution has become one of our specialties.
We act as legal expert or court representative at the request of the courts, and as technical advisor or certified mediator at the request of the parties.

Chales Markowicz Costmasters

Charles Markowicz

Certified accountant

Our philosophy

Accounting is not just "bean counting" or completing VAT forms.
It is foremost to ascertain that your legal deadlines are met in the most efficient manner possible. Then comes tax optimization, always within legal bounds. It's also a management tool, provided to help you make the right decisions, e.g., by proposing dashboards tailored to your sector and company.


We help companies in their daily lives, in both good times and bad.


Over the years, conflict resolution has become one of our specialties.
We act as legal expert or court representative at the request of the courts, and as technical advisor or certified mediator at the request of the parties.

Charles Markowicz

Certified accountant

A few examples of Costmasters missons

Click here and read our colummns in L'Echo
Go

Click here and read our columns in La Libre
Go

Charles Markowicz has written several pieces and given lectures on accounting and expert witness topics

Access the list of conferences and articles on this foundation's blog
Go

After learning how we had helped famous butcher Jack O' Shea increase his turnover by four times in record time, Steve Pipe, a 5 * writer on Amazon, decided to include us in his book

We have spoken several times at this public procurement training center, on the topics we hold dear

A few examples of Costmasters missons

Click here and read our colummns in L'Echo
Go

Click here and read our columns in La Libre
Go

Charles Markowicz has written several pieces and given lectures on accounting and expert witness topics

Access the list of conferences and articles on this foundation's blog
Go

After learning how we had helped famous butcher Jack O' Shea increase his turnover by four times in record time, Steve Pipe, a 5 * writer on Amazon, decided to include us in his book

We have spoken several times at this public procurement training center, on the topics we hold dear

Do you want to know more?

Do you ever feel that your business is not doing as well as you would like? Could you benefit from a tax niche or reduce your expenses? To find out if we can help you, contact us with your questions.

Do you want to know more?

Do you ever feel that your business is not doing as well as you would like? Could you benefit from a tax niche or reduce your expenses? To find out if we can help you, contact us with your questions.

Would you like to receive our latest publications?

Subscribe to our newsletter

Would you like to receive our latest publications?

Subscribe to our newsletter

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