A business case is a structured document or presentation that justifies a significant business decision -- typically a major investment, a new vendor, or an internal project -- by outlining the problem, the proposed solution, the expected costs and benefits, and the risks of action or inaction. In B2B sales, the business case is what your champion uses to get internal approval to buy from you.
Why business cases matter in B2B sales
In enterprise and mid-market B2B, few purchases happen without internal approval. Your champion may want to buy, but they need to convince their CFO, CTO, or procurement team. The business case is the vehicle for that conversation. Salespeople who help their champions build a compelling business case win significantly more enterprise deals than those who leave champions to figure it out alone.
What a business case includes
- Executive summary: what problem are we solving, what is the proposed solution, and what is the expected ROI?
- Problem statement: the current situation and cost of the status quo in quantified terms
- Proposed solution: what you are proposing to buy, and why this vendor was selected
- Financial analysis: total cost of ownership, expected return, payback period, and NPV or IRR if appropriate
- Implementation plan: timeline, resources required, and risks
- Alternative options considered: other vendors evaluated and why this solution was chosen
- Recommendation and ask: what approval is being requested and by when
How B2B sellers can help champions build a business case
The most effective B2B salespeople act as co-authors of the business case, not passive observers. Concretely:
- Provide an ROI calculator or template with the numbers pre-populated based on their situation
- Supply the competitor comparison and evaluation criteria section (you know this better than they do)
- Help quantify the cost of inaction ("What does it cost you per month to keep doing it the current way?")
- Ask to review the draft before the champion presents it internally
- Offer to join the CFO or CEO presentation as a subject matter expert
- Provide reference customers in a similar situation who can speak to realised ROI
Business case ROI calculation
A basic ROI calculation for a B2B business case: Total benefit (cost savings + revenue impact + productivity gains) minus total cost (licensing, implementation, training, ongoing support) over a defined period (typically 3 years). ROI = (Total benefit - Total cost) / Total cost x 100. A payback period (months to break even) is often more intuitive for CFOs than a percentage ROI.
Business case vs proposal
A sales proposal is a vendor-written document that presents the offer, pricing, and terms. A business case is a buyer-written document that justifies the purchase internally. The distinction matters: your proposal is the input; the business case is the output your champion produces from it. Smart sellers write proposals that make the business case easy to build.
Frequently asked questions
- What is a business case?
- A business case is a structured document that justifies a significant purchase or investment decision by outlining the problem, proposed solution, costs, expected benefits, and risks. In B2B sales, the business case is what your champion prepares to get internal approval from their CFO, CTO, or board to buy from you.
- What should a business case include?
- A B2B purchase business case typically includes: an executive summary, a quantified problem statement, the proposed solution and why it was selected over alternatives, a financial analysis (ROI, payback period, TCO), an implementation plan with timeline and resources, and a clear recommendation with an ask for approval.
- How can a salesperson help a buyer build a business case?
- Provide an ROI calculator or template pre-populated with their numbers, supply the competitive comparison section, help quantify the cost of inaction, offer to review the draft before the internal presentation, and offer to join the CFO or executive presentation as a subject matter expert. Champions who feel supported build better business cases and close faster.
- What is the difference between a business case and a business proposal?
- A business proposal is written by the vendor to present the offer, pricing, and terms. A business case is written by the buyer to justify the purchase internally. The proposal is input to the business case. A well-structured vendor proposal makes the buyer's business case easier to build.