Do I legally need a financial plan as a sole proprietorship?
Not always. There is no general law requiring all sole proprietorships to create a financial plan, but in certain situations (loans, subsidies) it is required.
24/09/2025
As a self-employed individual without staff, it is essential that your business is financially healthy. At PIA Go!, we help you create a financial plan that is fully tailored to your situation as a sole proprietorship. This way, you are stronger, you spot growth opportunities faster and you avoid unpleasant surprises.

A financial plan is a clear document in which you map out the financial future of your business. For a sole proprietorship, this specifically includes:
• your expected income: what you will earn, when and from whom
• your fixed and variable costs: rent, materials, transport, marketing, etc.
• investments: equipment, software, marketing campaigns, etc.
• cash flow: showing whether you always have sufficient funds to pay invoices and expenses
• your financial objectives in the short term (1 year), medium term (2–3 years) and long term (5 years)
• risks: what could go wrong and how you will respond
The plan is your roadmap: it not only shows where you are now, but above all where you want to go and how you will get there.
Even though it is not always mandatory for a sole proprietorship, there are situations where it is strongly recommended or necessary:
• applying for a loan or credit: the bank or lender wants to know whether you can repay the loan
• making investments: for example new machines, renovation of your workspace, or expansion of products/services
• subsidies or support measures: you often need to demonstrate that your plan is feasible to qualify
• major growth or strategic changes: if you want to expand, change your offering or grow your market, you need a financial plan
• you know your financial limits and avoid payment issues
• you can plan better: you see when to invest and when to slow down
• financiers, suppliers or partners see that you are serious
• you create peace of mind and confidence: you know what you are doing, financially as well
I want help with my financial plan
For a sole proprietorship, these are the basic elements your plan should include:
Income and expense forecast: what do you earn, what costs do you need to pay each month/year?
Financing needs: how much additional investment or credit do you need, and for what exactly?
Cash flow overview: when does money come in, when do you need to pay (invoices, suppliers, rent, taxes, etc.)
Profit and loss statement: shows when you make a profit or incur a loss
Risk analysis: what could go wrong (e.g. market fluctuations, delayed payments)? How will you handle it?
Financial objectives: what do you want to achieve over different time horizons (e.g. revenue targets, expansion plans, etc.)
A solid financial plan is your compass as a sole proprietorship. It gives you control over your figures, helps you achieve your goals step by step and ensures that you are not surprised by unexpected costs. Do you have doubts about certain aspects? Or would you like someone to review it with you? At PIA Go!, our accountants are ready to build your financial plan together with you. This way, you have a clear overview and the peace of mind to continue growing.
Do I legally need a financial plan as a sole proprietorship?
Not always. There is no general law requiring all sole proprietorships to create a financial plan, but in certain situations (loans, subsidies) it is required.
How far ahead should I plan (time horizon)?
At least 1 year (monthly), then a medium-term horizon (2–3 years) and ideally also a long-term vision (5 years) if you aim for growth.
How detailed should my cost estimate be?
Detailed enough to understand where your money goes: distinguish, for example, fixed costs (rent, insurance) and variable costs (materials, marketing). It is better to slightly overestimate costs or include a buffer for unexpected expenses.
How do I estimate my future income?
Look at market research, previous years if available, comparable businesses and your expectations based on your offering/pricing. Be realistic—better slightly cautious than overly optimistic.
How do I deal with seasonal fluctuations or temporary drops in income?
Create a monthly cash flow overview; plan buffer reserves; check whether you can adjust delivery terms; diversify your income sources.
How do I determine my financing needs?
Make an inventory of everything you need to start or grow (equipment, marketing, inventory, etc.), plus your normal operating costs. Subtract your current resources and own contribution. The difference is the financing you need to obtain.
What if my financial plan turns out differently than expected?
Review the plan regularly (at least annually, ideally every 6 months). Adjust it when circumstances change (price increases, fewer clients, new opportunities). Work with scenarios: best case, base case and worst case.
Can I get help with my financial plan?
Yes, and at PIA Go! we strongly recommend it. You can rely on accountants, financial advisors or services such as PIA Go! to guide you, review your plan and provide feedback.
How large should my buffer be for unforeseen costs?
This depends on your sector and risks, but it is usually wise to include 5–15% additional costs or maintain a separate reserve to cover unexpected gaps.
How do I use my financial plan in practice?
Regularly check whether your results match your forecasts. Use it to support decisions (e.g. investments, marketing budget, price increases). Let it be a guideline, not a constraint—you need to remain flexible to adapt to changing circumstances.
