Expert tax consulting in the Rhineland and Ruhr region
Our team of tax advisors in Düsseldorf and Oberhausen not only takes the burden off your business tasks but also offers to prepare all your personal tax returns—accurately and in full compliance with the law.
To ensure that you don’t pay a penny more than necessary, we place particular emphasis on tailoring our advice to each client’s individual needs.
As part of our clear and accessible consulting services, we do not simply process the documents you submit each year; we also discuss with you in detail changes in tax legislation and case law, as well as changes in your personal and financial circumstances.
At Trimborn . Partner, we view our long-standing, personal client relationships and the awards we have received as confirmation that we consistently live up to our commitment to securing all available tax benefits for our clients.
We are proud to have been consistently awarded by Focus Money as one of Germany’s top tax advisors in the “large tax advisory firms” category for many years.
Our success and our clients’ enthusiasm are the result of our consistent commitment to our firm philosophy. Read more about our firm philosophy and discover what sets us apart from many of our competitors in the market.
We appreciate your appointment request and look forward to earning your trust.
Personal Taxes and Wealth – Our Services in Detail:
- Calculation and preparation of tax returns for all types of income:
- Income from employment
- Income from self-employment
- Income from renting and leasing
- Income from business operations
- Income from capital assets
- Other income (e.g., pensions)
- Advice on choosing the most tax-efficient filing method
- Advice on choosing the appropriate limitation on loss carrybacks
- Advice on reduced taxation of extraordinary income
- Advice on applying for a cap on church tax
- Determining the most favorable tax treatment for child allowance/child tax credit
- Preparation of tax returns (print, electronic)
- Preparation of analyses and calculation lists (e.g., income from renting and leasing)
- Recording of income and expenses to be reported during the year
- Proactive advice on the taxation of investment income in connection with the flat-rate withholding tax
- Proactive advice on maximizing tax deductions for retirement savings
- Review of tax assessment notices
- Filing of appeals (objections with the tax office)
- Representation in litigation before the tax court
- Proactive consulting with projections of the expected tax burden for the current tax assessment period
- Proactive consulting with projections of the expected tax burden over a longer period (up to 15 years)
- Monitoring of advance payments due to the tax office
- Applying for certificates of non-assessment, child benefit, and parental allowance
- Application for income tax reduction
- Applying for extensions
- Applying for a reduction in advance payments
- Regular updates on changes in the law
- Profitability assessment for the purchase of private real estate
- Consulting on real estate investments with regard to liquidity, tax implications, and asset growth
- Consulting that takes into account various financing alternatives and income tax data
- Preparation of informative documentation for the bank meeting

Philipp Kroll




