Gross burn rate is the total amount of money a company spends each month, before any revenue. The formula is simply total operating + non-operating expenses. Unlike net burn, it ignores revenue entirely — making it the truest picture of operational scale and maximum cash needs.
What Is Gross Burn Rate?
Gross Burn Rate represents the total amount of money a company spends each month before factoring in any revenue.
What’s Included in Gross Burn Rate? 💼
Operating Expenses:
Employee Costs:
- Salaries and wages
- Benefits and payroll taxes
- Contractor payments
- Training and development
Facility Costs:
- Rent
- Utilities
- Maintenance
Technology Costs:
- Software subscriptions
- Hardware
- IT services
Marketing and Sales Costs:
- Advertising spend
- Marketing tools
- Sales materials
Administrative Costs:
- Office supplies
- Insurance
- Professional services
Non-Operating Expenses:
- Debt payments
- Capital expenditures
- One-time costs
- Legal settlements
- Investment costs
How to Calculate Gross Burn Rate
Gross Burn Rate = Total Operating + Non-Operating Expenses (monthly)All cash out — revenue ignored
Worked example
- Operating Expenses: $150,000
- Employee costs: $80,000
- Facility costs: $20,000
- Technology costs: $15,000
- Marketing costs: $25,000
- Administrative costs: $10,000
- Non-Operating Expenses: $50,000
Gross Burn Rate = $200,000/month
Why It Matters
Understanding gross burn rate is crucial for:
- Planning total cash needs
- Budgeting effectively
- Evaluating operational efficiency
- Making cost-cutting decisions
- Preparing for downturns
- Understanding true business scale
Gross vs. Net Burn
Key Differences:
- Gross Burn:
- All expenses regardless of type
- Ignores revenue completely
- Shows total operational scale
- Indicates maximum cash needs
- Net Burn:
- Expenses minus revenue
- Shows actual cash depletion
- Indicates runway length
- More optimistic view
Pro Tip: Many successful startups track both gross and net burn rates but plan their cash reserves based on gross burn to maintain a safety margin.
Managing Gross Burn
To control gross burn:
- Review operating costs regularly
- Question each expense category
- Optimize team structure
- Negotiate better rates with vendors
- Monitor non-operating expenses
- Scale costs gradually
Remember: Gross Burn Rate gives you the full picture of your expenses, helping you make informed financial decisions and secure a stable foundation for growth.
Gross Burn Rate FAQ
How do you calculate gross burn rate?
Add all monthly operating and non-operating expenses: Gross Burn = Total Expenses. $150K operating + $50K non-operating = $200K/month gross burn. Revenue isn't subtracted.
What's the difference between gross burn and net burn?
Gross burn is total spend, ignoring revenue. Net burn subtracts revenue to show actual cash depletion. Net burn drives runway; gross burn shows operational scale and worst-case cash needs.
What's included in gross burn rate?
All cash going out: salaries, benefits, rent, software, marketing, admin (operating) plus debt payments, capital expenditures, and one-time costs (non-operating).
Why track gross burn if net burn is more realistic?
Many startups plan cash reserves against gross burn for a safety margin — if revenue dips unexpectedly, gross burn is what you'd actually face.
Related burn-rate metrics
- Cash Burn Rate — the umbrella term for cash spent per month.
- Gross Burn Rate — total cash going out (costs only). (you are here)
- Net Burn Rate — cash out minus cash in — the true monthly drain.
