Founding a GmbH in 7 Steps
Founding a GmbH Made Easy: From Shareholder Agreement to Commercial Register Entry. Step-by-Step Guide with All Important Information.
Generative AI: Our Tax Expert from the Lab
Our AI Tax Expert: A Large Language Model trained on German tax law. Discover how technology and expertise come together.
VAT Advance Return: Elster Guide
With Billionaire, VAT advance returns become effortless: Automatic calculation and one-click filing with Elster. Understand the process behind it.
Managing Loans Between Your Entities
Learn how to structure, document, and account for inter-entity loans between your companies. Step-by-step guide on contracts, digital signatures, and balance sheet treatment.
Tailor-made Cockpit for all your companies
Discover why your wealth management needs a customized financial cockpit. Learn how AI-powered dashboards deliver CFO-level insights for real estate, stocks, and all asset classes—empowering you with 24/7 strategic intelligence.
Mining Property Intelligence from Invoice Data
Allocating invoices? Sure, but don’t just do it for your tax return. They reveal so much more about your properties. Every contractor invoice, every utility bill—they all hold clues to your real estate portfolio’s true performance.
Real Estate KPIs: What to Measure and How
You rent out a property—but do you actually know how well it’s performing? Discover the KPIs that make the difference. Many investors focus only on total returns, yet it’s the details that truly matter.
Why Liquidity Determines Real Estate Success
Liquidity isn't just about individual rental income. It's about seeing your entire portfolio's cash position in real-time—and that's what separates winners from the rest.