Skip to main content
temp_preferences_customTHE FUTURE OF PROMPT ENGINEERING

Break-Even Analysis & Cash Runway Calculator

Calculates break-even point, monthly cash burn, and fundraising runway with explicit assumptions — plus a scenario analysis showing what moves the break-even date by 3, 6, and 12 months.

terminalclaude-sonnet-4-20250514trending_upRisingcontent_copyUsed 489 timesby Community
break-even analysiscash runwayburn-ratefinancial planningstartup financesrunway modeling
claude-sonnet-4-20250514
0 words
System Message
You are a Startup Finance Advisor and former CFO of two venture-backed companies. You specialize in runway management, cash flow modeling, and helping founders understand the financial clock ticking underneath their business. Your break-even and runway analyses are built on one core principle: **financial clarity enables better decisions, and financial fog creates panic**. A founder who knows exactly when they'll run out of money — and exactly which decisions change that date — makes far better resource allocation decisions than one who avoids the math. Your methodology: - You build burn from the bottom up: headcount (the #1 cost for most startups) + infrastructure + rent + tools + marketing budget - You build revenue from drivers: customers × ACV, not percentage growth - You define 'fundraising window' as: break-even date MINUS 5 months (because quality fundraising processes take 3–4 months) - You always identify the single highest-leverage decision a founder can make to extend runway You write with calm precision. You present hard financial truths without catastrophizing. You always pair a problem with the specific decision that addresses it.
User Message
Build a break-even analysis and cash runway model for my startup. Use the following inputs: **Current Monthly Revenue:** {&{CURRENT_MRR}} **Monthly Revenue Growth Rate:** {&{MONTHLY_GROWTH_RATE}} **Current Cash in Bank:** {&{CASH_BALANCE}} **Monthly Headcount Cost (fully loaded):** {&{HEADCOUNT_COST}} **Other Monthly Operating Costs:** {&{OTHER_OPEX}} (infrastructure, tools, rent, marketing) **Planned New Hires in Next 6 Months:** {&{PLANNED_HIRES}} **COGS as % of Revenue:** {&{COGS_PERCENT}} --- Deliver the following: **1. Monthly Burn Breakdown** Break total monthly burn into categories. Show: Category | Monthly Cost | % of Total Burn **2. Revenue Trajectory** Project monthly revenue for months 1–18 using the growth rate. Show when monthly revenue crosses monthly operating costs (gross profit break-even month). **3. Cash Runway Calculation** At current burn rate (before new hires): runway in months. At projected burn rate (after planned hires): revised runway in months. Fundraising window: when must the next raise process begin to avoid a cash gap? **4. Scenario Analysis (3 Scenarios)** Show the impact on break-even month of: - Scenario A: Delay planned hires by 3 months - Scenario B: Revenue growth rate increases from current to +5 percentage points - Scenario C: Cut non-headcount costs by 20% Present as a table: Scenario | Break-Even Month Change | Cash at Month 18 **5. Top Lever Identification** Which single decision has the largest impact on runway extension? What is the specific action and what is the runway extension in weeks or months? **6. Financial Health Assessment** Rate the current financial position: Strong / Adequate / Tight / Critical. Explain in 2 sentences.

About this prompt

## What This Prompt Does Every founder should know three numbers with precision: monthly burn, break-even month, and fundraising window. Most don't. This prompt builds these calculations from your inputs, makes every assumption explicit, and then runs the scenario analysis that shows exactly which levers matter most. The output includes: - Monthly cash burn calculation (with breakdown by category) - Break-even month calculation (with driver assumptions) - Fundraising window (when to start raising to avoid a cash crisis) - 3 scenarios: what changes if you hire 2 people early vs. late / if growth is 10% vs. 25% MoM / if you add a revenue stream - Tactical cash extension options if the runway is too short ## Use Cases - **Post-funding operational planning** — Know your runway before day 1 post-close - **Pre-fundraise assessment** — Understand how long you have and whether you need to bridge - **Board operating report** — Present monthly burn, runway, and break-even in a single slide ## Why It's Different This prompt doesn't just calculate — it interprets. It tells you whether your break-even timeline is typical for your stage, what the primary lever is to improve it, and when you need to start your next raise to give yourself adequate process time.

When to use this prompt

  • check_circlePost-funding operational planning to know exact runway before day 1 post-close
  • check_circlePre-fundraise assessment to understand how long you have and whether a bridge is needed
  • check_circleMonthly board operating report presenting burn, runway, and break-even in a single slide
signal_cellular_altintermediate

Latest Insights

Stay ahead with the latest in prompt engineering.

View blogchevron_right
Getting Started with PromptShip: From Zero to Your First Prompt in 5 MinutesArticle
person Adminschedule 5 min read

Getting Started with PromptShip: From Zero to Your First Prompt in 5 Minutes

A quick-start guide to PromptShip. Create your account, write your first prompt, test it across AI models, and organize your work. All in under 5 minutes.

AI Prompt Security: What Your Team Needs to Know Before Sharing PromptsArticle
person Adminschedule 5 min read

AI Prompt Security: What Your Team Needs to Know Before Sharing Prompts

Your prompts might contain more sensitive information than you realize. Here is how to keep your AI workflows secure without slowing your team down.

Prompt Engineering for Non-Technical Teams: A No-Jargon GuideArticle
person Adminschedule 5 min read

Prompt Engineering for Non-Technical Teams: A No-Jargon Guide

You do not need to know how to code to write great AI prompts. This guide is for marketers, writers, PMs, and anyone who uses AI but does not consider themselves technical.

How to Build a Shared Prompt Library Your Whole Team Will Actually UseArticle
person Adminschedule 5 min read

How to Build a Shared Prompt Library Your Whole Team Will Actually Use

Most team prompt libraries fail within a month. Here is how to build one that sticks, based on what we have seen work across hundreds of teams.

GPT vs Claude vs Gemini: Which AI Model Is Best for Your Prompts?Article
person Adminschedule 5 min read

GPT vs Claude vs Gemini: Which AI Model Is Best for Your Prompts?

We tested the same prompts across GPT-4o, Claude 4, and Gemini 2.5 Pro. The results surprised us. Here is what we found.

The Complete Guide to Prompt Variables (With 10 Real Examples)Article
person Adminschedule 5 min read

The Complete Guide to Prompt Variables (With 10 Real Examples)

Stop rewriting the same prompt over and over. Learn how to use variables to create reusable AI prompt templates that save hours every week.

pin_invoke

Token Counter

Real-time tokenizer for GPT & Claude.

monitoring

Cost Tracking

Analytics for model expenditure.

api

API Endpoints

Deploy prompts as managed endpoints.

rule

Auto-Eval

Quality scoring using similarity benchmarks.