How to write a business plan: the ultimate guide for founders in Germany

15 June 2026
Vivid Editorial Team

The Vivid editorial team writes about company formation, finance and self-employment, with practical guides on business accounts, taxes and funding for founders and the self-employed.

How to write a business plan

A business plan sets out how a business idea is meant to become a viable business model. It helps you structure your idea, weigh up opportunities and risks, and prepare your financing. At the same time, it supports you in defining clear goals and making well-founded decisions.

In this guide, you will learn step by step how to write a business plan, set up a financial plan and use the right templates. That way you build a solid foundation for the next steps on your path into self-employment.

What is a business plan?

“What is a business plan?” is a question many founders ask themselves at the start of their self-employment. A business plan is a document that describes a company’s business idea, goals and strategy in a structured way. It shows how a venture is meant to be put into practice and which financial, organisational and personnel resources are needed for it.

A business plan is not just a point of orientation during the start-up phase. It is also an important basis for conversations with banks, investors or funding bodies. At the same time, it helps you spot opportunities and risks early and plan a company’s development in a targeted way.

Business plan structure: the most important components

The structure of a business plan should be clear and logical. It begins with the executive summary. It briefly sums up the business idea, target group, market, financing and goals. After that you describe your offering: which problem does it solve, who is it relevant for and why does it have potential?

Next, you introduce the founding team and show what experience you bring to the table. The market analysis examines the market, the competition and the potential of your venture. In the marketing and sales strategy, you set out how you want to win customers. After that comes the financial plan. It shows whether your venture is economically viable and how much financing you need. Finally, you assess possible opportunities and risks and define important milestones for the company’s further development. Together, these components form a coherent overall picture of your venture.

Financial planning in the business plan

The financial plan is one of the most important parts of a business plan. When you set out to create a financial plan, you should show clearly how much capital is needed to get started and how income and expenses are likely to develop. This is not about perfect forecasts, but about realistic assumptions.

A solid financial plan includes capital requirement planning, liquidity planning and a revenue forecast. The profitability projection matters too. It helps you better gauge the expected development of revenue, costs and profit. A break-even analysis additionally helps you determine the point from which your running costs are covered.

Alongside equity, loans, funding or investors are often viable sources of financing. Digital finance tools from Vivid help you keep an eye on income and expenses and spot financial trends early.

Financial planning in the business plan: plan capital requirements and liquidity realistically
A realistic financial plan shows your capital needs, liquidity and profitability at a glance.

Writing a business plan: step-by-step guide

When you want to write a business plan, a structured approach helps. That way you keep the overview and make sure no important content is missing:

1
Research the market, target group and competition

Good preparation forms the basis for all further decisions.

2
Describe your business idea

Explain which problem you solve, what value your offering provides and what sets it apart from other solutions.

3
Create the market analysis

Examine the market potential, competitors and possible opportunities and risks.

4
Develop your marketing and sales strategy

Decide how you want to reach customers and keep them for the long term.

5
Create the financial plan

Plan your capital requirements, running costs, expected revenue and liquidity as realistically as possible.

6
Define concrete milestones

They help make progress measurable and track the company’s development.

7
Sum everything up in the executive summary

Pull the most important insights together and carefully check the entire business plan for completeness and clarity.

Business plan templates and tools

A business plan template can make getting started much easier. It helps you structure the content sensibly and avoid typical mistakes. A template serves as a framework for your own business plan. Samples and examples, on the other hand, show how individual sections can be filled in and which information they typically contain.

The free templates from the Gründerplattform, the IHK and the Existenzgründungsportal are especially helpful. They include samples, guides and practical support for different business models.

Besides templates, digital tools can simplify financial planning. They support revenue forecasts, liquidity planning and the calculation of capital requirements. For more complex ventures, professional start-up advice can also be worthwhile.

Avoiding common mistakes

Anyone looking to write a business plan for free should avoid typical mistakes from the very start. The most common ones are:

Unrealistic financial planning without reliable figures: base your revenue and cost assumptions on market data, quotes or benchmarks rather than on guesses.
Superficial market analyses without precise knowledge of the target group: analyse the needs of potential customers and watch relevant competitors.
Statements that are too general instead of concrete goals and measures: formulate clear goals and describe how they are to be achieved.
An incomplete or unconvincing executive summary: sum up the key information on the business idea, market, financing and goals concisely.
Formatting and spelling errors that look unprofessional: plan enough time for corrections and ideally have someone else proofread the business plan.
Missing details on possible risks and challenges: show potential risks openly and explain how you intend to deal with them.

Take enough time to review before you finalise it. Careful work makes it easier for banks, investors and funding bodies to assess your venture realistically.

A business plan for the bank

A business plan for the bank should be realistic, comprehensible and complete. Banks want to understand how the business model is meant to work, what capital is needed and on which assumptions the planning is based. This is not only about the business idea, but also about whether the figures and assumptions add up.

For the bank meeting, you should have your business plan, your financial plan and information on the founding team ready. Also prepare for questions about your target group, the competition and possible risks. Reliable figures build trust and improve your chances of securing financing.

Digital banking solutions for founders

The administrative effort is often particularly high during the start-up phase. Digital banking solutions help you make financial processes more efficient and keep track of income and expenses.

With Vivid, you can open a business account fully online. Expenses are captured in real time and transactions are categorised automatically. You can also integrate accounting tools to simplify recurring tasks. A central overview of your company finances helps you follow expenses and cash flows more easily and organise administrative tasks more efficiently.

Ready to start your business?

With the Vivid business account, you manage your finances in one place from day one – with sub-accounts, cards and tools for your bookkeeping.

Discover the business account

Frequently asked questions (FAQ)

  • How do I write a business plan?

    If you want to know how to write a business plan, free templates and online tools can make getting started easier. They help you structure the most important content. For complex ventures, professional start-up advice can also be worthwhile.

  • If you are wondering what belongs in a business plan, focus on completeness. Key components are the business idea, the market analysis, the executive summary and the founding team. Banks and investors pay particular attention to whether the underlying figures are comprehensible and plausible.

  • How long it takes depends on the venture. Many founders invest between 40 and 100 hours over several weeks. The market analysis, financial planning and research of relevant data take up especially much time.

  • A business plan for freelancers can help define services, prices and goals clearly. Banks or funding bodies also often require a business plan when financing is applied for. In most cases, though, it turns out shorter than for other business models.

Conclusion: launching successfully with a professional business plan

Anyone who sets out to write a business plan lays the foundation for a successful launch. A good business plan helps structure ideas, make realistic decisions and prepare financing. At the same time, it is not a rigid document but should be adapted regularly to new developments.

With digital banking solutions from Vivid, founders keep an eye on their finances and create a solid foundation for sustainable growth.

Next steps

Download a business plan template: use a template from the Gründerplattform, the IHK or the Existenzgründungsportal to build your business plan in a structured way.
Open a business account: with a Vivid business account, you keep private and business finances cleanly separated from the start.
Arrange IHK advice: a conversation with your regional IHK helps clarify open questions and get valuable feedback on your venture.

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