Cotacs
Tax adviser · Purmerend
Cotacs in Purmerend is listed under Tax adviser. The listing shows 19 services.

About Cotacs
Cotacs is a tax advisory firm in Purmerend, specialising in compliance concerning corporate income tax. It supports businesses with tax returns, tax documentation and contact with the Belastingdienst (Dutch Tax and Customs Administration).
Tax returns
Cotacs prepares returns for individual businesses, fiscal unities and international businesses. It also supports clients with extensions, assessment checks and questions from the Belastingdienst (Dutch Tax and Customs Administration).
- Corporate income tax returns
- Returns for fiscal unities
- Dutch tax returns for international businesses
- Applying for extensions
- Checking tax assessments
- Replying to questions from the Belastingdienst (Dutch Tax and Customs Administration)
Tax advice and tax accounting
Cotacs maps out and analyses the tax position of businesses. It also supports clients with formal requests, advance consultations and documentation for the annual accounts.
- Tax advice
- Support with formal requests
- Applying for rulings
- Advance consultation with the Belastingdienst (Dutch Tax and Customs Administration)
- Analysis of tax position
- Annual accounts documentation
- Risk management
- Independent review
Tax audits and proceedings
Cotacs guides clients through tax audits and supports them with settlements, objections and appeals. It can also help with taking a case to court.
- Guidance during tax audits
- Negotiating settlements
- Objection and appeal proceedings
- Guidance in taking a case to court
Working method
A collaboration starts with an introductory meeting to discuss needs and wishes. Cotacs then develops a tailored solution and implements it after approval.
- Introduction
- Ideas and concepts
- Testing and evaluation
- Execution and implementation
Services and prices
Corporate income tax return
- Corporate income tax returns
- Arranging extensions for tax returns
Tax advice
- Checking tax assessments
- Drafting replies to questions from the Belastingdienst (Dutch Tax and Customs Administration)
- Tax advice
- Support with formal requests
- Applying for rulings
- Advance consultation with the Belastingdienst (Dutch Tax and Customs Administration)
Show all 13 services
- Analysis of tax position
- Risk management
- Independent review
- Setting up and further developing a Tax Control Framework
- Consultation with the Belastingdienst (Dutch Tax and Customs Administration) about a compliance covenant
- Guidance during tax audits
- Negotiating settlements
Financial administration
- Tax accounting
Annual accounts
- Annual accounts documentation
Legal advice
- Objection and appeal proceedings
- Guidance in taking a case to court
At a glance
| Listed under | Tax adviser |
|---|---|
| Location | Burgemeester D. Kooimanweg 31, 1444 BA Purmerend |
| Number of services | 19 |
| Weekend | Closed at the weekend |
| Languages | Nederlands |
| Phone | 06 23979205 |
| Website | cotacs.nl |
| Last updated | October 2026 |
Good to know
- Free intro
- Yes
- Founded
- 2012
Frequently asked questions
What does Cotacs offer?
Cotacs lists 19 services, including Corporate income tax returns, Arranging extensions for tax returns, Checking tax assessments, Drafting replies to questions from the Belastingdienst (Dutch Tax and Customs Administration) and Tax advice.
Where is Cotacs?
At Burgemeester D. Kooimanweg 31, 1444 BA Purmerend.
When is Cotacs open?
Monday 09:00–18:00, Tuesday 09:00–18:00, Wednesday 09:00–18:00, Thursday 09:00–18:00, Friday 09:00–18:00. Check with the business before you go.
How do I book with Cotacs?
Call 06 23979205. Or contact the business through its website.
This listing is based on public information, such as the business's own website. It can contain mistakes.
Contact
Burgemeester D. Kooimanweg 31, 1444 BA Purmerend
Cotacs does not manage this listing yet. Contact the business directly.
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Opening hours
| Monday | 09:00–18:00 |
|---|---|
| Tuesday | 09:00–18:00 |
| Wednesday | 09:00–18:00 |
| Thursday | 09:00–18:00 |
| Friday | 09:00–18:00 |
| Saturday | Closed |
| Sunday | Closed |
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