Clever Invoice vs. WISO Mein Büro

WISO Mein Büro by Buhl Data is an established German office suite that bundles invoices, quotes, bookkeeping, banking and reports under one roof. It targets the self-employed and small businesses that want to map their commercial processes comprehensively.

Clever Invoice sets a different focus: invoices and quotes are created in seconds – via chat, WhatsApp, voice message or AI. Instead of broad office software, you get a lean, mobile-first tool that radically simplifies the invoicing process.

WISO Mein Büro scores on depth: financial accounting, banking integration, inventory, dunning and detailed reports. Those looking for integrated bookkeeping find plenty of functionality here – at the price of a steeper learning curve and a more classic desktop feel.

Clever Invoice focuses on what matters daily: fast invoices and quotes, customer and product management, payment links, reminders and DATEV export for the tax advisor. Chat and voice operation make getting started possible without training.

Both solutions support German e-invoicing. WISO Mein Büro maps XRechnung and ZUGFeRD within its accounting world. Clever Invoice also generates XRechnung and ZUGFeRD GoBD-compliantly – including validation – and makes the e-invoice format the default without you having to deal with the technical details.

WISO Mein Büro is a good choice if you want to combine invoicing and bookkeeping in one software and need detailed commercial reports. Clever Invoice is the better choice if you mainly want to write invoices quickly, on mobile and without hassle – e.g. as a freelancer, tradesperson or small service business – with bookkeeping handled by your tax advisor.

Switching is straightforward: customers and products can be imported, and you write your first invoice immediately – no installation. Try Clever Invoice for free and keep WISO Mein Büro in parallel until you feel confident.