# Burn rate and runway (/finance--burn-runway)

/finance--burn-runway is a Claude Code skill in the Business section. Works out your burn rate and months of runway from expenses and revenue, then projects base, best and worst-case scenarios.

- Web version: https://skills.sgomez.dev/en/s/finance--burn-runway
- Section: [Business](https://skills.sgomez.dev/en/business.md)
- Author: Santiago Gómez de la Torre
- License: MIT
- Source: https://github.com/sgomez-dev/claude-skills/blob/main/skills/finance/burn-runway.md
- Updated 10 Jul 2026

## Use it when

- You want to know how many months of cash are left and the projected zero-cash date
- You need to compare base, best and worst-case scenarios
- You are deciding when to start raising or how much to cut

## Not for

- Financial or investment advice
- Predicting revenue without your data: the scenario inputs come from you

## What you get

A burn summary and scenario table in the chat, plus a CSV with the monthly projection and a Markdown report with formulas and assumptions.

## How to ask for it

- `/finance--burn-runway calculate how many months of runway we have left`
- `/finance--burn-runway I need burn rate with best-case and worst-case scenarios`
- `/finance--burn-runway analyze our expenses and revenue to see when we run out of cash`

## Install

macOS · Linux:

```
curl -fsSL https://raw.githubusercontent.com/sgomez-dev/claude-skills/main/install.sh | bash
```

Windows:

```
irm https://raw.githubusercontent.com/sgomez-dev/claude-skills/main/install.ps1 | iex
```

Claude Code plugin:

```
/plugin marketplace add sgomez-dev/claude-skills
/plugin install finance-skills@claude-skills-collection
```

## Permissions

- Reads: `*.csv`, `*.json`, `*.md`
- Writes: `burn_runway_*.md`, `burn_runway_*.csv`
- Runs: —
- Network: No
- Destructive: No

## Author's description

Burn rate and runway from expenses/revenue, with best/base/worst scenarios

## Questions about this skill

### What data do I need?

Ideally monthly cash in and cash out for the last 6-12 months, plus the current balance and its date. Headline figures or a transactions CSV also work.

### Does it make up growth rates for the scenarios?

No. The best and worst-case inputs come from you, and it asks if you have none. Any range it cites, such as fundraising lead time, is labeled approximate.

### Does it work with accrual accounting?

Yes, but runway is a cash measure. If you give it an accrual P&L it will ask about collection timing and note the difference.


- [How we review this](https://skills.sgomez.dev/en/methodology.md)