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Founders: Are You Raising Enough? Or Too Much? Here’s the Tool You Need
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Founders: Are You Raising Enough? Or Too Much? Here’s the Tool You Need

Most Founders Screw Up Fundraising—Here’s How to Avoid It

Ruben Dominguez Ibar's avatar
Ruben Dominguez Ibar
Mar 07, 2025
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Founders: Are You Raising Enough? Or Too Much? Here’s the Tool You Need
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Most startup failures come down to one thing: running out of cash.

Raise too little? You’ll be scrambling for money in a few months, with no leverage.
Raise too much? You’re giving up equity you didn’t need to and might start spending inefficiently.

There’s a smarter way.

I’m sharing a SaaS Source & Uses Calculator—a financial model designed for founders to see exactly how much to raise, how long it will last, and how to optimize their cash flow.

No fluff. Just the numbers that matter.


Why This Matters

✅ Know exactly when you’ll run out of cash – No more fundraising last-minute
✅ Raise the right amount – See if you need $3M or X 0.00%↑ M, and why
✅ Understand your burn – Gross vs. net, cash-in vs. cash-out
✅ Test different scenarios – What happens if CAC increases? Churn rises? Growth slows?

If you’re fundraising, this tool will make sure you don’t screw it up.


How It Works

📊 Step 1: Input Your Startup’s Numbers

  • MRR, CAC, Operating Costs – The real numbers driving your business

  • How much you want to raise – And how it impacts your runway

📉 Step 2: Get a Clear Picture of Your Runway

  • Cash burn rate – How much you’re really spending

  • Break-even timing – When you stop burning cash

  • Fundraising implications – What happens if you raise more or less

📈 Step 3: Make Smarter Decisions

  • How long your raise will last

  • The impact of different burn scenarios

  • Whether you need to adjust your plan before talking to investors


The Biggest Mistakes This Fixes

🚨 Waiting too long to raise – Fundraising takes time, don’t start when you have 3 months of runway left
🚨 Underestimating burn – Revenue doesn’t always scale as fast as you think
🚨 Over-raising – Dilution adds up, don’t give away equity you don’t need to
🚨 No backup plan – This tool lets you test different scenarios, so you’re not caught off guard


VCs Take You More Seriously When You Have a Plan

Investors don’t want optimistic guesses—they want clear, data-backed fundraising plans.

Show them you’ve thought this through:
✔ Your funding ask makes sense
✔ You know exactly how long your cash will last
✔ You’re planning for different growth scenarios


Get the SaaS Runway Calculator & Avoid Fundraising Mistakes

Most founders raise based on vibes instead of real numbers. Don’t be one of them.

If you’re raising, this is a must-have.


If you’re not premium subscriber yet, you’re missing out. Sign up to get investor lists, pitch breakdowns, and fundraising playbooks—straight to your inbox.

✅ Ultimate Investor List of Lists (+10k Investors)

✅ 18 AI Communication Agent Use Cases

✅ AI Co-Pilots Every Startup & VC Needs in Their Toolbox 🛠️

✅ 144 Family Offices That Cut Pre-Seed Checks

✅ The Startup Founder’s Guide to Financial Modeling (7 free templates included)

✅ The Ultimate Guide to Finding Investors for Your Startup 🚀

✅ The Best 23 Accelerators Worldwide for Rapid Growth (and How to Get Into Them)

✅ The Ultimate Startup & Venture Capital Notion Guide: Knowledge Base & Resources

As a premium subscriber, you will get access to all the above ones, the SaaS Runway Calculaor, and all the best resources The VC Corner has ever published.

Get 25% off forever


🔗 Download the SaaS Runway Calculator Below 👇

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