KStG Optionsmodell 2026
German §1a tax comparison
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Compare German partnership default, § 1a KStG election, and GmbH paths with 2026 parameters. One-time unlock for multi-year scenarios, PDF and CSV export.
Model Germany's § 1a KStG corporate-tax option for partnerships in a focused advisory workflow. Compare the transparent default model, the corporation-tax option, and a GmbH conversion path using profit, municipal trade-tax multiplier, distribution rate, partner shares, additional taxable income, church-tax status, and assessment type.
The app models corporate income tax, solidarity surcharge, trade tax, withholding tax on distributions, and the § 35 EStG trade-tax credit in the default partnership model. Multi-year projection, sensitivity analysis, quick-pick municipal multipliers, and the filing-deadline tracker help prepare a better client conversation.
Premium Pro unlocks scenarios beyond three years, more than two partners, the full GmbH comparison, PDF/CSV export, and ad-free use.
This app is not tax advice under German law. It is a calculator and comparison tool; binding decisions should be reviewed by a qualified German tax professional.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Stability and groundwork for upcoming In-App Events: the app-wide event deep link (kstgpartner://) is now active so seasonal KStG option-deadline reminders open directly in the app. Minor improvements.
The developer, IVAN BOBAN, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- IVAN BOBAN
- Size
- 4.8 MB
- Category
- Finance
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English and German
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Premium Pro $44.99
- Copyright
- © 2026 Cosmic Production d.o.o.