New perspectives on taxation and capital.
An initial overview of selected projects and strategies. I’ll guide you every step of the way, from the initial assessment right through to implementation, and put you in touch with specialist partners – so that you can assess for yourself what best suits your objectives.
Customer experiences that build trust.
Independently collected and publicly available: my clients’ reviews on ProvenExpert.
4.90out of 5
Very good114 reviews
- Recommendation
- 100 per cent
- Customer Service
- 4.89
- Value for money
- 4.85
All reviews on ProvenExpertAs of: October 2026
Three themed areas. Different objectives.
01Tax allowances | Germany
Tax Planning & IAB Projects
For German taxpayers, the investment allowance (IAB) opens up a wide range of tax planning options – from a significant reduction in income tax to optimising the sale of a business or medical practice. In addition to solar PV systems and battery storage units, we utilise IAB-eligible composting plants, water projects and tiny houses. This allows investments to be spread more widely and reduces concentration risk.
02Rethinking capital
Alternative capital strategies
I’ll give you access to selected strategies that go beyond traditional forms of investment. This includes professionally implemented trading strategies, market-neutral approaches (solutions whose success does not depend on the current market trend) and other project-based opportunities. Experienced managers handle the day-to-day implementation – you don’t need to constantly monitor the markets or trade yourself. I present the information in a clear and accessible way – you can assess which strategies offer you attractive potential returns to complement your traditional investments.
03New investment horizons
Bitcoin & digital assets
I’ll help you understand Bitcoin, mining and tokenisation – and how to benefit from them. I’ll guide you step by step through your first experiences. More and more assets are being digitally represented as tokens and made tradable. Those who get to grips with this early on can better understand the opportunities, risks and potential applications. Through selected partners, you’ll gain access to Bitcoin and tokenised real assets – tangible assets that are already available to investors today.
Clear information. Reliable support.
Well-structured information, transparent processes and a level-headed assessment of opportunities and risks. My experience and my network will help you assess projects and partners – enabling you to make well-informed decisions for yourself.
- Transparent processes
- Keeping an eye on opportunities and risks
- Experience and a specialised network
Clarify the initial situation
What is your objective, timeframe and risk tolerance?
Understanding strategy
How does the approach work, where do the returns come from, and what are the risks involved?
Check the information
Objectively analyse the documentation, partners, framework conditions and results to date.
Establish contact
If you are interested in finding out more, here is the direct link to the relevant project partner.
Personalised access to selected opportunities.
For more than 30 years, I have been advising business owners and private individuals on financial and business matters. For several years, I published financial articles for a stock market newsletter and for the financial magazine ‘Smart Investor’. Well-established networks and close collaboration with specialist partners open up avenues that go beyond standard solutions.
I’m providing you with the information I have – so that you can check whether a particular topic is relevant to your situation and your plans.
“Not every new concept is automatically a good one. What matters most are transparency, clarity and whether it suits the individual.”
Michael RehbergerWin-win Consult Ltd
Which topic would you like to find out more about?
It’s up to you how you’d like to get started: take your time to find out more first – or have a personal chat straight away.
Or call directly +49 177 69 60 650
Get information
Just drop me a quick line to let me know which topic interests you – I’ll get back to you with the relevant documents.