As professional GMs, we juggle a strange mix of creative work, admin tasks, performance energy, and business management. Many of us didn’t start in spreadsheets. We started in storytellers’ chairs. Once your GMing becomes a business, you inherit the same financial questions faced by any small‑business owner:

• Am I profitable?
• Is my business healthy?
• Where is my money actually going?

One metric that helps answer those questions is EBITDA. You don’t even need an accounting degree to calculate it.

This article breaks down what EBITDA is, why it matters, and how to calculate it from a standard income statement.

What is EBITDA and is it Dwarven or Elvish?

EBITDA is

Earnings
Before
Interest
Taxes
Depreciation
Amortization

It is a way to measure how much money your business actually generates from its operations before external financial factors muddy the picture.

EBITDA tells you how much money your business makes from doing the thing it actually does.

 For a professional GM, “the thing you actually do” is:

• running sessions,
• preparing content,
• managing player groups,
• and coordinating the operational structure of multiple campaigns.

EBITDA ignores things like:

• how your loans are structured,
• your local tax rules,
• non-cash accounting items like depreciation.

Because of that, it gives you a cleaner picture of your business performance.

This is why professional investors use EBITDA because it normalizes the core data and leaves variables like taxes and interest out.

Why EBITDA Matters for Business Owners

Professional GMs are no different than a restaurant or a multi-national bank. Many business owners underestimate how “real” their business becomes. If you’re running multiple weekly campaigns, hiring assistants, paying for digital tools, or building modular homebrew content, your finances start to behave like those of a service company.

What does EBITDA do that makes it so useful?

Operational Performance: It answers is my core business making money?

 Apples to Apples: EBITDA strips out location based tax differences and individual financial structures. What does that give you? A normalized way of comparing your business month to month or year to year.

Planning and Scaling: EBITDA can show whether your current operations generate enough cashflow to support growth. Do you subcontract? Rent a production studio? Invest in new technology? EBITDA is a useful metric for planning your next move.

Widely used in business valuation: You have data to set revenue targets, evaluate risk, and see the sustainability of your operations. It’s also useful for selling a business.

How to Calculate EBITDA

EBITDA = Operating Income + Depreciation + Amortization

Or
EBITDA = Net Income + Interest Expense + Taxes + Depreciation + Amortization

Interest: Credit card interest, loan interest (banks or friends and family), equipment financing costs.

Taxes: Taxes vary due to many factors. Removing them allows you to evaluate your business independent of your tax strategy.

Depreciation: This is an accounting charge that spreads the cost of assets over several years. Computers, furniture, and other physical assets with more than one year of useful service usually have depreciation. Even though depreciation reduces net income on paper, it doesn’t reflect money leaving the business this year, so EBITDA adds it back.

Amortization: Similar to depreciation but for intangible assets such as R&D costs for authoring a new module, copyright filings, etc. Not all GM businesses have amortization but if you’re creating original content you likely do.

Example using Net Income

EBITDA = 32000 + 600 + 4000 + 1200 + 0 = $37,800

How you can use EBITDA as a Professional GM

Trend tracking. Review monthly or quarterly to see:

·         whether new campaigns are profitable,

·         whether expenses are creeping up,

·         whether prep‑time or R&D reduction efforts are paying off (remember someone needs to get paid for any work that is done, not just during the session).

Pricing Decisions. If your EBITDA is positive but narrow consider:

·         raising session rates

·         adjust group size or number of groups

·         discontinue sales or discounts

Efficiency Improvements. Falling EBITDA may show:

·         Labor for session prep time increased

·         You have subscriptions you aren’t using

·         You spent too much money at DTRPG (it happens)

Scaling Readiness. Stable EBITDA means the business is consistently producing operating profit. Key for:

·         Outsourcing

·         Buy or lease better tools and equipment

·         Experimenting with new offerings

Conclusion

You don’t need to become an accountant to run a professional GM business, but you do need to understand the basics of business health. EBITDA is one of the clearest indicators of whether your creative work, delivered as a service, is generating real financial value.