Essay · about 12 min read

The Gross Margin Problem: Lessons for Tech-Enabled Startups

David Sacks · Bottom Up by David Sacks (Substack) Free Intermediate

When you bolt a services layer onto a product business, the number investors actually stare at is your blended gross margin, and this is the canonical piece on why. Sacks (a serial founder and VC) walks through how low-margin, labor-heavy revenue drags down the whole business and why investors gross-margin-adjust their valuation multiples. It reframes the services question as a margin-discipline question, which is exactly the lens you need before you add the layer.

  • Investors read software and services as different-margin businesses, so mixing them lowers your blended gross margin even when each part is fine on its own.
  • Track product and services margins separately from day one, because a healthy blended number can hide a services drag underneath.
  • A lower gross margin is acceptable to investors only if there is a credible path to it improving as the mix shifts back toward the product.
Open on sacks.substack.com ↗

The question it answers

  1. How do I decide whether to add a services layer to my product business, and will investors hate it?

Read with it

  1. If your real question is "can I use services to fund the product without getting stuck there," this is the practical playbook.... SKMurphy, Inc. Article · about 10 min read Bootstrapping Your Way from Services to Scalable Products Sean Murphy
  2. For the practitioner gut-check on how much services revenue is actually healthy, SaaStr is the reference voice, and Jason... SaaStr Podcast · episodes roughly 25 to 40 min The Official SaaStr Podcast: SaaS, Founders, Investors Jason Lemkin
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