Tax practice · Cologne
Billstein Mehlis Osenau – Wirtschaftsprüfer Steuerberater Partnerschaft
From public informationLast checked:
In short
Tax adviser partnership in Cologne-Mülheim for businesses and founders with a focus on succession and restructuring. Billstein Mehlis Osenau – Wirtschaftsprüfer Steuerberater Partnerschaft is located at Wiener Platz 4, 51065 Cologne and can be reached by phone at 0221 9676-0.
About Billstein Mehlis Osenau – Wirtschaftsprüfer Steuerberater Partnerschaft
Billstein Mehlis Osenau – Wirtschaftsprüfer Steuerberater Partnerschaft is based at Wiener Platz 4 in Cologne-Mülheim. The partners are auditor and tax adviser Bernhard Mehlis and tax adviser Günter Billstein.
According to the firm, it combines tax advice, auditing, business valuation and legal advice under one roof. On the tax side, it prepares financial and payroll accounting, annual financial statements, profit calculations and tax returns, supports clients during tax audits and handles communication with the tax authorities.
The website names business owners facing succession or restructuring decisions, as well as founders, as its main target groups. According to the firm, its advice is designed as long-term, proactive support.
Focus areas of Billstein Mehlis Osenau – Wirtschaftsprüfer Steuerberater Partnerschaft
The firm names these 5 focus areas on its website. Click one to see every firm in Cologne with the same focus.
Firm details
- Firm type
- Tax practice
- Legal form
- PartG
- District
- Mülheim
- Responsible chamber of tax advisers
- Steuerberaterkammer Köln
- Data source
- The firm's legal notice (Impressum)
- Status
- From public information
- Last checked
This entry is based on publicly available information from the firm's own website, not on information supplied by the firm. Last checked on 14 October 2026. You can check an appointment as tax adviser in the official register of the Federal Chamber of Tax Advisers.
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Frequently asked questions
Where is Billstein Mehlis Osenau – Wirtschaftsprüfer Steuerberater Partnerschaft located?
Billstein Mehlis Osenau – Wirtschaftsprüfer Steuerberater Partnerschaft is located at Wiener Platz 4, 51065 Cologne. The firm's published phone number is 0221 9676-0. More information is available on the firm's own website.
What does Billstein Mehlis Osenau – Wirtschaftsprüfer Steuerberater Partnerschaft specialise in?
According to its own website, Billstein Mehlis Osenau – Wirtschaftsprüfer Steuerberater Partnerschaft focuses on Business start-ups, SMEs, Payroll, Bookkeeping, Annual accounts. The focus areas in this directory are taken from the firm's description of its services and can be corrected by the firm at any time.
Which chamber of tax advisers is responsible for Billstein Mehlis Osenau – Wirtschaftsprüfer Steuerberater Partnerschaft?
Tax advisers with their practice in Cologne are members of the Steuerberaterkammer Köln (§ 73(1) StBerG). Each adviser's appointment can be checked in the official register of the Federal Chamber of Tax Advisers.
