5 Most Common Mistakes Founders Make When Raising Capital

Discover the five most common mistakes I see founders make when trying to raise investment — and how to avoid them:
Picture of Tom Luttrell
Tom Luttrell

The UK’s top PropTech Fundraising Expert

Raising capital is one of the most exciting — and frustrating — journeys a founder can go on.

Done right, it’s exhilarating and it fuels growth. Done wrong, it burns time, energy, and reputation.

Here are the five most common mistakes I see founders make when trying to raise investment — and how to avoid them:

1. Starting Too Late

Fundraising always takes longer than you think. Founders often wait until they’re desperate for cash — but investors don’t fund panic. Smart founders prepare 3–6 months in advance, build relationships early, and raise from a position of strength.

2. Having a Weak or Confusing Deck

Your pitch deck is your entry ticket. If it’s unclear, too long, or lacks a compelling story, investors won’t read past slide 3. A deck should be visually sharp, structured, and focused on what investors care about: market, traction, team, and upside.

3. Not Knowing Your Numbers

If you can’t confidently talk about your revenue model, margins, CAC, burn rate, or valuation rationale — you lose credibility. Investors are financially driven. You don’t need to be an accountant, but you do need to own your numbers.

4. Pitching the Wrong Investors

Spray-and-pray doesn’t work. Too many founders pitch every VC or Angel they can find, regardless of fit. The result? Wasted time and silent inboxes. Instead, focus on investors who fund your stage, sector, and size of raise. Tailor every pitch.

5. Lack of Follow-Up Strategy

A great first meeting means nothing without a solid follow-up. Investors want momentum. Failing to chase, update, or close loops is a killer mistake. Treat your raise like a sales process — because it is.

Final Word:

Fundraising isn’t just about convincing others. It’s about becoming the kind of founder investors want to back. Confident, prepared, and clear.

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