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Grace Hall
Written by
Grace Hall
Last updated
July 13, 2026

Analyzing Monthly Running Costs for a Digital Marketing Agency


Frequently Asked Questions

Fixed running costs start at $21,225 per month in 2026, primarily driven by $15,625 in payroll and $5,600 in fixed overhead Variable costs add another 25% of revenue (14% COGS, 11% OpEx);

Grace Hall
About the author

Grace Hall

Startup Planning Writer

Grace Hall is a startup planning writer at Financial Models Lab, where she creates simple financial projections that help founders make business ideas easier to evaluate. She focuses on the numbers behind everyday businesses, especially for people planning to open a physical location. Grace writes about cost and income assumptions in a clear, practical way, helping readers understand what it really takes to open a business and build a realistic plan.