Measuring Platform TCO the CFO Will Actually Believe

Most TCO decks include licenses, hosting, and headcount — then stop. The CFO's team adds a 30% 'hidden cost' buffer and the number stops being useful 1. A defensible model surfaces those hidden costs explicitly.

• Licenses & subscriptions (visible)
• Infrastructure & delivery (visible)
• In-house engineering & product (visible)
• Agency & vendor delivery (semi-visible)
• Author time — the largest hidden cost (invisible)
• Opportunity cost of slow releases (invisible)

The last two typically account for 40–60% of true TCO and are almost never in the deck.

1const authorCost = markets
2  .flatMap((m) => m.campaigns)
3  .reduce((sum, c) => {
4    const hours = c.authors * c.avgHoursPerPage * c.pages;
5    return sum + hours * blendedRate(c.region);
6  }, 0);

Instrument the CMS to log this. Once the number is visible, every platform improvement translates into a currency the CFO respects.