Use the evidence and practical questions in this article to test your own assumptions. Any worked examples use hypothetical inputs.
Start with the decision
A business plan should make a decision easier. Write down whether you are testing demand, preparing a funding request or coordinating an expansion. Those purposes require different levels of evidence. A lender needs a repayment explanation; a product team needs an experiment it can run. Begin with the intended reader and the decision date, then remove sections that do not help either. A long document can still leave the central commercial question unanswered.
Build the operating narrative
Describe one customer, one problem and one offer before describing the entire market. Explain how that customer finds you, what they pay, what delivery requires and why they would return. Connect these choices to staffing, capacity and suppliers. Keep a separate assumptions log with the evidence behind each estimate. If the sales plan requires a new location, the opening schedule and deposit belong in the operating plan and the cash forecast, rather than in unrelated appendices.
Work through a small example
Suppose a hypothetical repair studio plans to sell 120 appointments a month at $150 each. Revenue would be $18,000 before refunds or taxes. If each appointment needs two technician hours, the plan requires 240 delivery hours plus time for scheduling, rework and administration. That simple capacity check can expose an unrealistic sales forecast before anyone spends on advertising. Test a quieter month as well: fixed commitments continue when the appointment book is half full.
Keep a usable working template
Use the following headings as questions rather than decorative labels: customer and problem; offer and price; evidence of demand; delivery capacity; people and responsibilities; startup spending; recurring costs; collections and payments; risks and decision dates. Attach a cash forecast and actual quotes for large purchases. Review the plan when new evidence changes the decision, not just at an annual meeting. Preserve earlier assumptions so you can see what proved wrong. SBA provides public planning resources; this working structure is Motenza’s own practical synthesis.
Your next planning session
Bring the person responsible for sales and the person responsible for delivery into the same conversation. Give each major assumption a confidence label and an evidence link. If sales expects 120 appointments but operations can deliver only 90, resolve that gap before discussing funding. Write the next experiment as an action with a budget and end date. The result might be a smaller launch, a different customer group or a decision to wait. A usable plan changes with evidence instead of becoming a polished document nobody revisits.
The working notebook
Build a business plan that can be checked
A business plan becomes useful when its claims can be traced to evidence and assigned to an owner. Start with the customer problem, explain what the customer pays for, and show how the business delivers it. An attractive market-size estimate does not establish an obtainable share. Write down the sales channel, delivery capacity and cost of winning the first paying customers. Separate signed orders, discussions and assumptions so a reader can distinguish an existing pipeline from a forecast.
For a hypothetical service business, ten monthly projects at $2,000 produce $20,000 of sales. If each project requires $800 of direct cost, monthly contribution is $12,000 before fixed overhead. With $9,000 of fixed costs, operating surplus is $3,000 before tax, debt service and owner distributions. A fall to seven projects produces only $8,400 of contribution and a $600 shortfall. Record that downside alongside the base case. The example is Motenza arithmetic, not a prediction or a lender decision.
Keep the plan and the cash forecast connected. A profitable project can consume cash if customers pay after suppliers and staff. State when deposits arrive, when the work is delivered and when the balance is collected. Review assumptions against actual transactions rather than treating the document as finished after presentation. A traditional detailed plan and a concise operating plan can share the same evidence register; their length should follow the purpose and the recipient’s requirements.
Questions to resolve before acting
- Which sales are committed and which are assumptions?
- Does the plan distinguish profit from cash received?
- What changes if the first customer pays a month late?
Download the working worksheet
The worksheet is an editable CSV for your own records. Examples are hypothetical, not quotes, promised returns or eligibility decisions. Keep sensitive information on your own device.
Frequently asked questions
How do you write a business plan?
Describe the customer problem, offer, market evidence, delivery model and responsible people, then connect the sales and cost assumptions to a cash forecast. Keep an evidence register and downside case. Adapt the document to its purpose rather than choosing its length as a measure of quality.
What should a small-business plan include?
Include what the business sells, to whom, why the buyer chooses it, how it delivers, what it costs and how it funds the operating cycle. Identify assumptions, evidence, risks and the person responsible for each important decision.
Sources & further reading
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