You've got a great idea that could save your company money or open a new market. But ideas alone don't get approved. You need a business case — a clear, persuasive document that convinces decision-makers to say yes.
Writing one in English adds another layer of challenge. The language needs to be precise, professional, and convincing without sounding pushy. Let me walk you through what goes into a solid business case and the exact language you'll need.
What is a Business Case, Really?
A business case isn't a sales pitch. It's a structured argument that answers one question: Why should we spend time, money, or resources on this?
Good business cases show you've thought through the risks, costs, and alternatives. They don't just describe what you want to do — they prove it makes sense.
The Key Elements You Can't Skip
Every strong business case follows a similar skeleton. Here's the structure that works:
Executive Summary
Write this last, but put it first. In 3-5 sentences, state the problem, your proposed solution, and the expected outcome. Decision-makers are busy. If they only read one section, this is it.
Language tip: Use the present simple for facts, conditional for future outcomes.
Our current ordering process takes 12 hours per week. Implementing automated software would reduce this to 2 hours, saving $15,000 annually.
Problem Statement
Be specific about what's broken. Use data if you have it. Vague problems get vague approvals.
Language tip: Use currently, at present, leads to.
Manual data entry currently causes a 7% error rate in our accounts, leading to delayed payments and customer complaints.
Proposed Solution
Describe what you're proposing without getting lost in technical details. Keep it focused on outcomes.
Language tip: Use recommend, propose, suggest.
We recommend adopting Salesforce CRM to automate client tracking and reporting.
Cost-Benefit Analysis
This is where you win or lose. Show the costs (implementation, training, maintenance) against the benefits (savings, revenue, efficiency). Use a simple table if it helps clarity.
| Cost Category | Initial Cost | Annual Cost |
|---|---|---|
| Software | $12,000 | $4,000 |
| Training | $3,000 | $1,000 |
| Total | $15,000 | $5,000 |
| Benefit | Annual Savings |
|---|---|
| Reduced labor | $30,000 |
| Fewer errors | $8,000 |
| Total | $38,000 |
Language tip: Use return on investment (ROI), payback period, net savings.
The payback period is under 6 months, with an estimated ROI of 150% in the first year.
Risk Assessment
Honesty builds trust. List what could go wrong and how you'll handle it.
Language tip: Use potential risks, mitigation, unlikely but possible.
A potential risk is staff resistance to new software. Mitigation: phased rollout with dedicated training support.
Here's how these elements connect in practice:
Language That Makes Your Case Stronger
Your choice of words matters as much as your logic. Here's what works in professional English business cases:
Be Direct but Polite
Decision-makers want clarity, not fluff. Use strong verbs without sounding arrogant.
| Weak | Strong |
|---|---|
| We think this could maybe help | This will reduce costs by 15% |
| It might be a good idea | We recommend implementing |
| Possibly we can look at | Our proposal addresses |
Use Hedging When Appropriate
Sometimes you need to soften a statement, especially with projections.
We estimate savings of $20,000 in the first year. The system should be fully operational within 3 months.
Words like estimate, project, should, and likely show you're realistic, not guessing.
Compare and Contrast Clearly
When discussing alternatives, use comparative language.
Option A offers lower upfront costs, while Option B provides better long-term scalability. Unlike the current process, the proposed system eliminates manual checks.
Show Confidence in Your Recommendation
End with a clear, direct statement.
Based on the analysis above, we strongly recommend moving forward with Phase 1 immediately.
Common Mistakes to Avoid
I've seen plenty of business cases that looked solid but failed because of a few simple errors. Watch out for these:
Too much jargon. Your readers might not know technical terms. Explain acronyms the first time you use them.
Missing the "why." Listing features isn't enough. Connect every proposal to a business outcome.
Ignoring alternatives. Pretending your idea is the only option looks naive. Show you've considered other paths and explain why yours is better.
Weak data. Vague promises like "this will improve efficiency" get nowhere. Use specific numbers.
Putting It All Together
A great business case doesn't need to be long. It needs to be clear, honest, and backed by evidence. Write in short paragraphs, use headings so people can scan, and always keep your audience in mind.
Start with a draft. Fill in each section with the language patterns I've shared. Then revise ruthlessly — cut every sentence that doesn't pull its weight.
If you're looking to strengthen your business English writing skills more broadly, consider testing your current level. Knowing where you stand makes it easier to focus on what matters.
👉 Ready to see where your English stands? Take the free English Measure test online. We cover reading, listening, writing, and speaking — so you'll know exactly which skills to work on next. Start your test here.
Ready to Take Your English Further?
Don't just read! Actively practice and improve your speaking, listening, reading, and writing skills with our interactive modules.