New WebTreu EinfachBüro for Windows

Office organization,
finally simple.

Manage income, expenses, receipts and invoices clearly in one place – designed especially for small businesses and people just getting started.

Try it for freeStart without registration

Download program Try free for 7 days on Windows

Windows shows a security warning?

When you launch the app for the first time, Microsoft Defender SmartScreen may show a warning about an “unknown app”. This does not automatically mean the application is unsafe. Windows shows this notice because the application does not currently have a digital publisher certificate.

In the blue Windows window, click “More info” .
Check that “WebTreu EinfachBüro” is shown as the application.
Then select “Run anyway” .

Please download only from the official WebTreu website. If you have questions: WhatsApp support or kontakt@webtreu.de.

Try all features for 7 days
No registration required
Data stays exclusively local
After the trial, your data remains permanently readable and exportable

Buy annual licenseUnlock one tax year

Select tax year Available for tax years 2026 to 2030. One annual license is valid for exactly one selected tax year.

Buy annual license for 2026

Try without registration Data stays local PDF and CSV export

Calculation-based preparation aid only. No tax or legal advice. All information is provided without warranty.

WebTreu EinfachBüro

TAX YEAR 2026 Overview

7-day trial

Income 0,00 €

Expenses 0,00 €

Result 0,00 €

Quick entry

+ Income + Expense + Invoice

7 days try for free

100% local

Features

Manage the most important office tasks clearly and efficiently.

WebTreu EinfachBüro is designed for small businesses and people just getting started who want to organize their day-to-day business transactions without an unnecessarily complicated interface. The application runs on Windows and stores the data you enter locally on your computer.

Income and expenses

Record business transactions in a structured way and keep current totals in view from one central place.

Manage receipts

Organize related documents clearly and keep the information together for further processing.

Create invoices

Create invoices and export them as documents for sharing.

PDF and CSV export

Export data in common formats for your records or further processing.

Local storage

Your work data stays on your own Windows computer and does not require a user account.

Try it for seven days

Try all available features without registration before purchasing an annual license.

Clear scope

What EinfachBüro does – and what it does not.

EinfachBüro helps you clearly record and prepare your business data for calculations. The application does not replace individual tax or legal advice and does not submit tax returns to the tax authorities. Review exported information before using it further and seek professional advice on tax matters when needed.

After the trial expires, existing data remains available for viewing and export. To continue editing the selected tax year, the corresponding annual license is required.

Installation and security

Get started easily on Windows.

Download the official ZIP archive only from webtreu.de.
Extract the archive into its own folder and launch the application from there.
Use the seven-day trial and then unlock the desired tax year if needed.

Windows may show a SmartScreen notice the first time you launch the app while it does not yet have a digital publisher certificate. Check the application name and download the file only from this official product page.

Frequently asked questions

FAQ about WebTreu EinfachBüro.

Do I need to create a user account?

No. You can start the trial without registration or a user account.

Where is my data stored?

The work data entered in EinfachBüro stays locally on your Windows computer.

How long can I try the program for free?

You can try the available features free of charge for seven days.

What happens after the trial?

Existing data remains readable and exportable. To continue editing, you need a license for the selected tax year.

Does EinfachBüro replace tax advice?

No. EinfachBüro is a calculation-based preparation aid and does not provide tax or legal advice.

Which export formats are available?

According to the currently published feature set, the application supports PDF and CSV exports.

Try EinfachBüro free for seven days.

Download without registration and try managing your office tasks locally on Windows.

Download program

Office organization, finally simple.