10 Pitch Deck Mistakes That Kill Funding Rounds

Investors don't read pitch decks; they scan them for reasons to say no — an average partner sees hundreds a quarter and gives yours three minutes. The mistakes below are the recurring no-triggers, compiled from what actually gets decks discarded. Each one is fixable in an afternoon; unfixed, each one costs meetings you'll never know you lost.

1. The market-size theatre

'India's food market is ₹75 lakh crore' tells investors you multiply Wikipedia numbers. Credible sizing is bottom-up: your reachable segment × realistic price × plausible share, with the arithmetic shown. A ₹500 crore honestly-derived SOM beats a ₹5 lakh crore TAM slide every time — it demonstrates the muscle investors are actually assessing: whether you understand your own business.

2. Hockey sticks without drivers

Revenue curving from ₹40 lakh to ₹80 crore in three years, with no row explaining what produces it — hires, channels, conversion assumptions, capacity. Fix: project from drivers (salespeople × productivity, spend × CAC × LTV), show the assumptions, and let investors argue inputs rather than dismiss outputs.

3. 'We have no competition'

The fastest credibility killer in the deck. Everyone competes — with incumbents, substitutes, or the customer doing nothing. Fix: an honest landscape (2×2 or table), what each alternative gets right, and your specific wedge. Naming strong competitors and your edge against them reads as market mastery, not weakness.

4. Traction buried or dressed up

• The real numbers hidden on slide 14 while vision fills slides 1–13 — lead with traction if you have it; it's the only slide that can't be argued with
• Vanity dressing: cumulative charts (only go up), 'annualised' best months, GMV where revenue is the question — analysts unwind these in minutes and remember the attempt
• Fix: monthly (not cumulative) curves, the honest metric for your model (revenue, retention, repeat rate), and cohort evidence over averages

5–7: The believability cluster

Unit economics absent — no CAC, no margin per order, no payback: at seed it's forgivable-ish; post-revenue it reads as either ignorance or concealment. Show the per-unit math, even ugly, with the improvement path. The everything-platform — decks promising marketplace + SaaS + fintech + community in year one signal unfocus; win one wedge, mention the rest as roadmap. Team slide as LinkedIn collage — logos without relevance; investors want why this team wins this market: the insight, the unfair access, the prior proof. Full-time status matters — 'will join post-funding' is a red flag with a slide number.

8–10: The craft cluster

• Length and density: 25 text-heavy slides for a first meeting — the send-deck is 10–14 slides, one idea each, readable without you narrating; the appendix holds the rest
• The unexplained 'how': decks that describe the problem beautifully and hand-wave the solution's mechanics — one slide must make the product's working obvious (screenshots, flow, before/after)
• Stale or inconsistent numbers: March's deck circulating in September, metrics that contradict the data room later — version-date the deck, reconcile every number to books, and update monthly during a raise

The meta-fix

Before sending, run the three-minute test: hand the deck cold to someone smart and ask what the company does, why now, what's working, and what's being asked. If any answer is wrong, the deck — not the reader — failed. Then run the sceptic pass: every superlative deleted or evidenced, every chart's axis honest, every claim survivable in diligence. Decks don't raise money; they earn the meeting where you do — optimise them for exactly that job.

How Aidwish helps

Aidwish builds investor materials with founders — bottom-up market math, driver-based models, honest traction framing and the deck-to-data-room consistency that keeps credibility intact from first email to final signature.