Buhl Data WISO Steuer 2026 belastingsoftware (5 aangiften, Windows/Mac, ELSTER)

Employees, self-employed individuals, pensioners, landlords, and capital investors preparing their 2025 German tax declaration in 2026 can rely on WISO Steuer 2026. The software guides users through all official German tax forms with integrated tax tips, a savings calculator, and plausibility checks to maximize refunds. It supports up to five tax returns per license, making it suitable for households or small offices.

Key specifications

• Software type: Tax declaration software
• Target tax year: 2025 (declaration in 2026)
• Maximum tax returns: 5
• ELSTER compatibility: Yes
• Supported operating systems: Windows 10/11 (32/64-bit), macOS 10.15 Catalina or higher
• Installation medium: Digital download (optional DVD)
• License type: Single user, annual license
• Data import: Previous year data, bank data, employer data, ELSTER data
• Mobile app integration: Yes (WISO Steuer-App)
• Cloud synchronization: Yes (Buhl Cloud)
• Minimum RAM: 2 GB
• Minimum hard disk space: 2 GB
• Internet connection required: Yes (for activation, updates, ELSTER submission)
• Language: German
• Support for cryptocurrencies: Yes (for capital gains tax)
• Integrated video tutorials: Yes
• Automatic data transfer: Yes (e.g., from health insurance, pension funds)

Why choose it

WISO Steuer 2026 automates data retrieval from employers, banks, and insurance providers, reducing manual entry and errors. The integrated tax tips and plausibility checks help uncover deductions, while the mobile app and cloud sync allow you to work on your tax return from anywhere. With support for up to five returns, it offers flexibility for families or small businesses.

Ideal use cases

• Employees with multiple income sources seeking maximum refunds
• Self-employed individuals needing to file business and personal taxes
• Landlords reporting rental income and expenses
• Capital investors handling capital gains, including cryptocurrencies
• Pensioners with straightforward tax situations

Good to know

The software requires an internet connection for activation, updates, and ELSTER submission. It is available as a digital download, with an optional DVD. The license is annual, covering the 2025 tax year, and includes all official German tax forms. The interface and documentation are in German.