A $9/mo SaaS with 500 customers hits ~92% margins after just $340 in costs

ThePeterMick · x · 2026-10-28

A quick math exercise: a $9/mo SaaS with 500 customers yields $4,500 MRR, while hosting ($50), domain ($10) and Stripe fees ($280) total only $340 — a 92% margin. The author's point: few other businesses offer this kind of cost structure, which is what makes subscription software uniquely attractive.

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