Gross Margin

I. Formal Definition

Revenue minus cost of revenue, expressed as a percentage of revenue, representing the income remaining after the direct costs of producing the product or delivering the service. Gross margin is the federation-recognised primary measure of product-level economics and the necessary precondition for sustainable growth investment. The federation requires gross margin to be reported with cost of revenue defined consistently across periods, with hosting, third-party data, customer support, and infrastructure cost included under UFMS-001:3.2. Pro forma exclusions are footnoted with quantification.

II. Etymology

A standard term of corporate accounting; the construction stabilised in nineteenth century industrial cost accounting and entered SaaS vocabulary unchanged.

III. Federation Usage

Federation members publish GAAP gross margin quarterly with consistent definition. Pro forma adjustments are footnoted with quantification. Gross margin trend is a quarterly input to capital efficiency and the IFO4 Score under MEV-Annex:4.1.

IV. Related Terms

• contribution-margin
• operating-margin
• gross-profit
• cost-attribution

V. Authoritative Citations

• UFMS-001:3.2UFMS Article III - Gross Margin
• MEV-Annex:4.1MEV Annex IV - Margin Reporting

VI. Citation in BibTeX

@misc{ifo4_glossary_gross_margin,
  title        = {{Gross Margin}},
  author       = {{IFO4 Federation Editorial Board}},
  howpublished = {{IFO4 Federation Glossary, slug \texttt{gross-margin}}},
  year         = {2026},
  url          = {https://ifo4.org/glossary/gross-margin},
  note         = {Category: Unit Economics; key: GrossMargin}
}

VII. Challenge This Definition

Federation members and accredited practitioners may challenge any entry under TGS-002:1.7. Filed challenges are routed to the editorial board, triaged into the revision register, and resolved in writing on the public docket. The slug remains stable through any revision.