Founders often treat a feasibility study as proof their idea will work. But investors treat it very differently. A feasibility study isn’t about your grand vision – it’s about spotting risks. If your study is riddled with such warning signs, it can undermine your fundraising readiness and turn investors away.
Below are eight major red flags investors often look for in a startup feasibility study – and how to fix each one. By catching these pitfalls ahead of time, you can remove them and present a feasibility report that inspires confidence rather than doubt.
Red Flag #1: Unrealistic Revenue Projections (Ignoring Market Reality)
Founders often claim they’ll capture a sizable percentage of a huge market (e.g. “5% of a $10 billion industry”) without a concrete plan for how. On paper that looks good; in reality, without a clear go-to-market plan, it’s just wishful thinking. Investors quickly flag revenue projections that jump from zero to massive sales with no explanation of how those customers will be acquired.
Why it’s a problem: Market size alone doesn’t generate revenue – customers do. If your feasibility study says you’ll hit big revenue in a short time but doesn’t detail the sales capacity, marketing strategy, customer acquisition cost, or conversion timeline behind those numbers, investors see a disconnect from reality.
Make sure your revenue forecast is grounded in reality by linking it to a concrete go-to-market strategy. Build projections from the bottom up: explain how you’ll acquire customers (through which channels, at what cost) and use conservative, evidence-based assumptions instead of optimistic guesses.
Red Flag #2: Flawed Unit Economics and Unsustainable Business Model
A great product and large market mean little if the unit economics don’t work. Unit economics refers to the profit (or loss) you make per customer or sale. If your study shows you’ll lose money on each unit or need unrealistic scale to break even, that’s a glaring red flag. For example, if acquiring customers is too expensive relative to their lifetime value, the business model isn’t sustainable. Likewise, new startups rarely achieve mature profit margins out of the gate. Over-reliance on future scale or “we’ll figure out profitability later” also signals the idea hasn’t proven it can make money.
Make sure each customer or sale is profitable on its own. Calculate key metrics like your contribution margin and LTV (Lifetime Value) to CAC (Customer Acquisition Cost) ratio to confirm that each customer generates more revenue than they cost. If your unit economics are weak now, acknowledge it and outline how you’ll improve them (e.g. reduce costs, raise prices, or increase customer value) until they are sustainable.
Red Flag #3: No Sensitivity Analysis (Only Best-Case Scenario)
If your feasibility study presents only a single, rosy scenario where everything goes to plan, investors’ alarm bells will ring. Many founders include financial projections that assume full success – revenue grows fast, costs stay low, timelines are met – but investors rarely believe everything will go perfectly. When a study has no downside modeling or “what if” scenarios, it appears fragile and overly optimistic.
It signals that the team hasn’t stress-tested the business and lacks risk awareness. If your study doesn’t consider how things could go wrong (slower sales, higher costs, delays), investors will assume you’re not prepared for adversity. Investors will ask questions like how many customers you can onboard per month, what it costs to acquire each one, who will actually sell the product, and how long each sale takes. If your study doesn’t address those, the revenue forecast won’t be trusted.
Always include a sensitivity analysis in your projections. Model at least a base case and a downside case (e.g. 20% lower sales or 20% higher costs) and see how that affects your cash and profit. Showing a realistic worst-case scenario demonstrates preparedness and gives investors confidence that you can handle surprises.
Red Flag #4: Ignoring Cash Flow Realities (Profit ≠ Cash)
Another red flag appears when financial projections ignore cash flow timing. It’s possible to show a paper profit while still running out of cash in practice. Many founders overlook how cash moves in and out. Investors often discover this disconnect: a model might look profitable (positive net income) but cash tells a different story. Revenue could be recorded, yet cash is tied up in inventory or late customer payments; expenses may hit before related revenue comes in.
Founders sometimes assume profit means cash – it doesn’t. For example, you might offer net-30 payment terms: you book sales today but won’t actually see the cash for a month or two, while expenses (payroll, rent, suppliers) must be paid now. Many feasibility studies fail to account for these working capital gaps. If your document lacks a cash flow analysis, investors worry the team doesn’t understand liquidity.
| Founder Assumption | Investor Reality |
|---|---|
| Revenue is as good as cash in hand | Cash might not arrive for 30-90 days. |
| “We’ll hire staff as needed to grow.” | Payroll hits before revenue stabilizes. |
| Inventory is a one-time upfront cost | Inventory cycles drain working capital. |
Investors will also ask how you’ll cover obligations during ramp-up (e.g. paying salaries before sales ramp, or what if customers pay late). Without clear answers, their confidence drops.
Include a detailed cash flow forecast alongside your profit projections. Use realistic assumptions about payment delays, inventory buildup, and other working-capital needs, and plan how you’ll cover any cash shortfalls. Focus on cash runway and liquidity, not just accounting profits.
Red Flag #5: Generic Market Analysis with No Validation
Many feasibility studies contain broad market stats (“The market is $10 billion and growing 8% annually”) but that doesn’t prove your startup can capture any of it. If your report trots out big numbers and trends without evidence of actual customer interest or product-market fit, expect skepticism. Vague “huge market” claims make a study feel theoretical rather than actionable.
Founders often assume a huge TAM (Total Addressable Market) will impress investors. In reality, investors care more about who specifically you will target and whether you have proof people want what you’re offering. If your study says “demand is growing” but doesn’t answer who your customers are and why they will buy from you, it’s a red flag. It comes off as research homework instead of a go-to-market plan. Also, avoid citing a massive global market when you’re targeting a niche segment – that mismatch makes your growth projections look disconnected.
Make your market analysis specific and backed by validation. Focus on your target customers and provide evidence of real demand from that group. Investors look for tangible traction indicators, such as:
- Pilot users or letters of intent from early customers
- Early revenue or usage metrics showing real uptake
- Customer feedback confirming willingness to pay
These kinds of proof points carry far more weight than abstract industry stats. If you don’t have much traction yet, present solid customer research and clearly identify your target market. Show who your initial customers will be and why they’ll buy. Shift from a sweeping top-down market claim to concrete bottom-up evidence of real demand. Investors care about evidence of customers, not just market size.
Red Flag #6: No Clear Go-To-Market Strategy (Missing Customer Acquisition Plan)
A feasibility study might describe an exciting product and big market, but if it fails to map out how you will acquire customers, that’s a major omission. One common sign of a weak study is “missing details about how customer acquisition will happen”. Simply put, a great product is not enough – you need a plan to reach and convert customers. If your document doesn’t spell out a marketing and sales strategy, investors will doubt whether you can actually generate the revenue you project.
Without a clear go-to-market (GTM) plan, it may appear you’re assuming customers will just find you. For example, saying “we’ll use social media marketing” without explaining the strategy or costs is too superficial. Likewise, if your model depends on a direct sales force, you need to outline the hiring, onboarding, and sales cycle assumptions behind it. Ignoring this crucial execution piece suggests overconfidence or a lack of marketing expertise. Investors might fear that the team hasn’t figured out how to effectively sell the product, which puts the whole venture at risk.
Develop a concrete go-to-market strategy and include it in your feasibility report. Make sure you clearly explain who your target customers are, how you will reach them (channels and tactics), what it will roughly cost to acquire them, and what your sales funnel looks like (from lead to conversion). Also lay out a basic timeline for key marketing and sales activities so investors see you have an execution plan. A credible go-to-market section assures investors you know how to get from product to paying customers.
Red Flag #7: Ignoring Competition and External Risks
Ignoring your competition or major external risks is a big warning sign. Similarly, overlooking regulatory, legal, or supply chain challenges can spook investors. For example, failing to analyze competitors or ignoring regulatory barriers are noted feasibility study red flags.
If your study claims you have no competitors or ignores obvious industry challenges, it comes off as naïve. Every business faces competitors and external risks, so failing to acknowledge them signals a lack of due diligence. Investors will suspect that you either aren’t aware of the real landscape or are intentionally glossing over potential hurdles – both of which raise concerns during due diligence.
Be forthright about competition and external risks in your feasibility study. Include a brief competitive analysis to show what your edge is against existing players. Also identify the key external risks (e.g. regulatory hurdles) and how you will mitigate each one. Being open about these challenges shows investors maturity and preparedness.
Red Flag #8: Team and Execution Gaps
If your feasibility study doesn’t instill confidence in the team’s ability to execute, that’s a major red flag. A study with great numbers but no answer to “Who is going to make this happen?” will raise doubts.
If the team lacks relevant experience or if roles aren’t clearly defined (e.g. who runs operations, sales, finances), investors fear execution risk. Another red flag is when founders don’t acknowledge their own skill gaps. If there’s no mention of advisors or key hires to fill weaknesses, investors see a gap. Lack of contingency planning is another red flag – if the plan doesn’t explain how the team will handle setbacks, investors assume you’re not prepared.
Highlight your team’s relevant experience and clearly define who is responsible for what. If you lack expertise in some area, acknowledge it and mention advisors or planned hires who will cover those gaps. Provide a brief roadmap (key hires or milestones) to show you have a plan beyond the idea. And make sure to explain how you’ll handle setbacks or uncertainties. Showing that you have a capable team with backup plans will reassure investors.
How OGScapital Helps Founders Avoid These Red Flags
Many founders benefit from expert guidance when refining a feasibility study. OGScapital is a consulting firm that specializes in investor-ready feasibility studies. Through rigorous review, financial modeling, and structuring, we catch unrealistic assumptions, stress-test your financials, model downside scenarios, and refine your go-to-market and operational plans so that risks are addressed. The result is a feasibility study built to withstand investor scrutiny.
With OGScapital’s support, you can confidently approach investors with a feasibility study that addresses investor concerns. We ensure red flags are fixed before your document reaches investors, so you enter your funding round with an analysis that inspires trust instead of doubt.
