Invoicing software for small businesses

— simple, digital & integrated

Unusual Suite allows you to create invoices directly based on projects, tracked time and activities. This simple invoicing software ensures that invoicing becomes a seamless process that connects time tracking and project management. Instead of gathering data from different tools, your invoices are generated automatically from your ongoing projects — making the process transparent, traceable, and efficient. Unusual Suite is a practical billing software system that helps you reduce manual work and stay in control.

  • Create invoices from projects and tracked time
  • Integrated invoicing software for small businesses
  • Easy for teams to use
  • Avoid tool chaos and reduce costs
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Time tracking here, projects there, invoices somewhere else And you wonder why mistakes happen? Every single time, it just takes forever Unusual Suite connects everything in one system

Create invoices with integrated simple invoicing software for small businesses

Many small business owners look for affordable and reliable billing software systems to manage their invoices and finances clearly and efficiently. What is often underestimated, however, is that every additional tool increases complexity.

Time tracking, invoicing, project management and CRM are handled in different systems. Data must be exported, reconciled, or transferred manually, just to create an invoice in a separate program at the end.

This costs time, energy, and money. With every new employee and every additional project, the workload increases. What still "works" today can quickly become a real efficiency problem tomorrow. That's why it's especially important for small businesses to adopt an integrated solution early on. With Unusual Suite, you don't just get simple invoicing software for your small business — you get a comprehensive software for your small business where all processes work together seamlessly.

Because ultimately, the question isn't which dedicated invoice program to choose. The real question is: Why put yourself through that extra effort in the first place?

Simple invoicing software — create invoices directly out of projects

Your invoices are generated automatically from data you already record in the system. This simple invoicing software automatically applies working hours and hourly rates, helping you avoid duplicate entries and minimize billing errors.

In just a few clicks:

  • Select the relevant project
  • Transfer times and services
  • Adjust layout and text
  • Send the invoice by email or as a PDF

This makes Unusual Suite a reliable solution and simple invoicing software for small businesses, especially in service-based industries, without complicated processes often associated with modern billing software systems.

PDFDownload a sample invoice

Simple invoicing software in Unusual Suite

Automatic calculations and centralized management with billing software systems

All amounts are calculated automatically and rounded to two decimal places. Net and gross prices, VAT, and hourly rates are processed correctly. Time rounding rules can also be configured flexibly.

At the same time, all invoices are stored centrally and linked to customers and projects:

  • Quick document search
  • Easy export for accounting and archiving
  • Secure delivery to customers
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More features of the all-in-one software
with invoicing

Projects

Projects

Plan, control and execute your projects in one central workspace. With this all-in-one business software, you coordinate clients, tasks, and team members without switching between different tools. You instantly see responsibilities, progress and open items. Combined with an integrated billing software system, Unusual Suite connects project management and simple billing software in a single environment.

Activities

Activities

Organize your daily operations with clear priorities and defined responsibilities. Unusual Suite brings tasks, meetings and workflows together in one structured system. You assign activities, set deadlines and monitor progress in real time. At the same time, integrated billing software ensures that completed work can be transferred directly into invoices. The result: fewer coordination loops, no duplicated work and a noticeably more efficient workday.

Time Tracking

Time Tracking

Unusual Suite allows you to record, adjust and calculate working times precisely, creating the perfect basis for accurate invoices. Whether you run an agency, a craft business or a consultancy, you combine project control and billing software in one platform and turn time tracking into a reliable revenue driver.

Documents

Documents

Create and manage quotes, agreements and invoices without leaving your system. All documents are automatically linked to the relevant project and contact, so you always have the full context. With built-in simple invoicing software, you control the entire commercial process in one place, from offer to project, to final invoice.

Mails

Mails

Handle your entire email communication directly inside your business software. Incoming and outgoing messages are automatically assigned to the correct project or contact, eliminating manual sorting.

Support Tickets

Support Tickets

Process customer requests in a clearly defined workflow. The integrated ticket system shows who is responsible for each inquiry and what the current status is. This structured approach ensures consistent service quality and transparent communication.

Power-Chat

Power-Chat

Power-Chat works as your intelligent knowledge assistant. It scans documents, emails and wiki entries within seconds and delivers precise answers together with the original source. Instead of manually browsing through data, you receive relevant information instantly.

Power-Search

Power-Search

The advanced full-text Power-Search reviews your entire database in real time. It includes connected content such as notes, messages, files and project data in search requests. All relevant results are displayed immediately, so you can continue working without delays. This reduces time spent searching and helps you stay focused on execution.

Wiki

Wiki

Build a structured knowledge base directly inside the platform. Create wiki articles, document processes and store essential expertise for your team in one central location.

Billing Software Systems: Frequently Asked Questions (FAQ)

Suitable billing software systems for small businesses should:

  • Create legally compliant invoices
  • Be easy to use
  • Manage customers, services, and projects in a structured way

It's important that invoices don't exist in isolation. Unusual Suite connects invoices directly with projects, time tracking, and contacts. This makes it more than an invoice program — it creates a seamless process from service delivery to payment without duplicate data entry.

Invoicing software usually costs between €10 and €30 per month. Free versions often have limited functionality. Unusual Suite is available with invoicing included in the Free Edition. The Pro Edition costs €29 per user per month. It replaces numerous standalone tools, from time tracking to project management and CRM — making it an ideal simple invoicing software for small businesses that reduces license fees and administrative effort.

Invoicing software is used to create and manage quotes and invoices and to monitor incoming payments.

Accounting software, on the other hand, includes full financial accounting, such as income-expense statements, double-entry bookkeeping, VAT filings, and annual financial statements.

Unusual Suite combines both worlds by offering integrated invoicing within a modern all-in-one business management software. It simplifies the billing workflow and ensures your financial data is well prepared for further processing in your accounting system, without unnecessary complexity.

Yes. In Unusual Suite, invoice documents can be customized and adapted to your corporate design. Logos, colors, headers and footers, and custom content can all be defined so your invoices look professional and consistent with your brand. This makes the platform a flexible and simple billing software designed for your business that ensures your invoices are not only legally compliant but also consistent with your company's branding.

Access to invoicing can be controlled through roles and permissions. In Unusual Suite, user profiles with individual read and write permissions can be defined. This allows you to specify:

  • Who can create invoices
  • Who can edit or approve them
  • Who has view-only access

This keeps your invoicing process secure and controlled, even when multiple employees are working with projects and services using the centralized simple invoicing software.

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