Use a spreadsheet first, then move to a real finance tool only when updates become painful. That is the StartupBooted way. Keep cash visible. Keep guesses honest. CB Insights found that 38% of failed startups ran out of cash or failed to raise new capital [source: CB Insights]. So yes, your model matters.
TLDR: Start with Google Sheets or Excel. Build a simple model with revenue, expenses, hiring, and runway. Example: if Mia has $60,000 in the bank and burns $8,000 per month, she has about 7.5 months of runway. If she delays one $5,000 monthly hire by 60 days and cuts ad waste by 15%, she may stretch that to almost 10 months.
What “StartupBooted Financial Modeling” Really Means
StartupBooted financial modeling is not fancy banker magic. It is a money map for founders who need to survive.
It answers basic questions:
- How much cash do we have?
- How fast are we spending it?
- When do we run out?
- What needs to happen before then?
- Can we afford that hire, tool, ad campaign, or office?
That is it. No velvet rope. No secret finance club.
A good model helps you make fewer silly bets. It will not predict the future. It will show you where the walls are.
The Best First Tool: Google Sheets
Google Sheets is the best starting point for most startup teams. It is free or cheap. It is easy to share. Everyone knows how to break it. That last part is annoying, but useful.
Use it if you are pre revenue, small, or still changing your pricing every Tuesday.
Best for:
- Simple runway models.
- Hiring plans.
- Revenue guesses.
- Investor updates.
- Monthly budget checks.
The annoying part: formulas get messy fast. One deleted row can ruin your week. Honestly, it feels like every “quick fix” in a shared model adds two new tabs and one silent error.
Still, Sheets wins early. Keep it clean. Use fewer tabs. Name every assumption.
Excel: The Old Beast Still Works
Microsoft Excel is still great for heavier financial models. It is fast. It has solid chart tools. Many accountants and finance folks love it.
Use Excel if your model has lots of tabs, lots of rows, or more complex formulas.
Best for:
- Three statement models.
- Debt schedules.
- Inventory planning.
- Detailed scenario work.
The annoying part: collaboration can feel clunky. Version names become comedy. You will see files like final model v7 real final fixed again.xlsx. Painful, but real.
Finmark: Clean and Founder Friendly
Finmark is built for startups that want less spreadsheet chaos. It connects with accounting, payroll, and billing tools. Then it helps you see runway, burn, revenue, and hiring plans in one place.
Best for:
- Seed stage startups.
- Teams with monthly investor reporting.
- Founders who hate manual updates.
The catch is you still need clean data. If your accounting is a junk drawer, Finmark will show a prettier junk drawer.
Causal: Great for Scenarios
Causal is fun for “what if” planning. What if churn rises? What if ads get cheaper? What if sales hires miss quota? It turns those questions into visual models.
This is helpful when you need to compare paths fast.
Best for:
- Scenario planning.
- Charts that non finance people can read.
- Planning with ranges instead of fake perfect numbers.
The annoying part: setup can take time. Expect to waste time mapping data fields. One billing export can eat 20 minutes if names do not match.
LivePlan: Good for Simple Business Plans
LivePlan is useful for first time founders. It mixes financial forecasts with simple business plan tools. It is not built for complex venture models. That is fine.
Best for:
- Local service startups.
- Simple product businesses.
- Pitch planning.
- Bank loan prep.
If you need a basic profit and loss forecast, it works well. If you need deep SaaS cohort math, pick another tool.
ProjectionHub: Quick Forecast Templates
ProjectionHub sells ready made financial forecast templates. They cover many business types, like SaaS, ecommerce, restaurants, apps, and marketplaces.
Best for:
- Founders who want a starting point today.
- People scared of blank spreadsheets.
- Business loan planning.
The templates can save hours. But do not treat them like truth. Change the assumptions. Your startup is not a template with a hoodie.
Baremetrics and ChartMogul: For Subscription Startups
If you run a SaaS company, use tools built for recurring revenue. Baremetrics and ChartMogul track metrics like MRR, churn, ARPU, expansion revenue, and customer lifetime value.
Best for:
- SaaS startups.
- Subscription apps.
- Founders who use Stripe.
These tools do not replace your full model. They feed it. Think of them as your revenue truth machine.
Accounting Tools: QuickBooks and Xero
Your model needs real numbers. That means you need clean accounting.
QuickBooks and Xero help track actual income and expenses. Your forecast says what might happen. Accounting says what did happen. You need both.
Best for:
- Monthly close.
- Expense categories.
- Tax prep.
- Actual vs forecast checks.
Do not wait until tax season. That is how founders end up sorting 400 mystery card charges while eating cold pizza.
Templates Worth Using
Templates help you move fast. Just avoid bloated models with 19 tabs and 477 assumptions.
Good resources include:
- Y Combinator startup templates for simple planning and fundraising basics [source: Y Combinator].
- SCORE financial templates for small business budgets and cash flow plans [source: SCORE].
- The SaaS CFO for SaaS metrics and finance explainers.
- OpenVC templates for fundraising prep and investor materials.
Use templates as scaffolding. Then strip them down. Your model should be easy to explain in five minutes.
What Every Startup Model Needs
Do not start with complicated finance jargon. Start with the basics.
- Revenue: How money comes in.
- Cost of goods sold: What it costs to deliver the product.
- Operating expenses: Payroll, software, rent, legal, marketing.
- Headcount plan: Who you plan to hire and when.
- Cash balance: Money in the bank.
- Burn rate: Cash spent each month.
- Runway: Months before cash hits zero.
- Scenarios: Base case, good case, ugly case.
The ugly case matters most. Be nice in your pitch. Be mean in your model.
A Simple StartupBooted Stack
Here is a sane tool stack by stage.
- Idea stage: Google Sheets plus a basic template.
- Pre seed: Google Sheets, QuickBooks, and Stripe exports.
- Seed stage: Finmark or Causal, plus clean accounting.
- SaaS stage: ChartMogul or Baremetrics feeding your model.
- Growth stage: Dedicated finance software and a part time CFO.
Do not buy a giant finance system too early. It will not fix weak assumptions. It will only make weak assumptions more expensive.
Final Pick
If you are just starting, use Google Sheets. If you need power, use Excel. If reporting is eating your calendar, try Finmark. If scenarios are your pain, try Causal. If you run SaaS, add ChartMogul or Baremetrics.
The best model is not the prettiest one. It is the one you update often. It shows cash clearly. It makes hard choices obvious. That is the whole game.
