ForecastingStocks

A switching cost is the pain — in money, time, effort or risk — a customer faces when moving from one company's product to a competitor's. When that pain is high, customers stay even if a rival is cheaper or slightly better, and that stickiness is a moat.

Where switching costs come from

Learning and habit. Software a whole team has trained on, with workflows built around it, is painful to abandon — retraining everyone is costly and disruptive.
Integration. A system woven deep into a company's operations — connected to its data, its other tools, its processes — cannot be ripped out without major risk and expense.
Data and history. Years of accumulated records, settings or content locked in a platform are a powerful anchor.
Risk of disruption. For mission-critical systems — a bank's core software, a hospital's records — the danger of something breaking during a switch outweighs almost any saving from changing.

Why this moat is so valuable

Switching costs produce recurring, predictable revenue and pricing power. Locked-in customers tolerate price rises because leaving costs them more than the increase. They are slow to churn even when service slips. This is why enterprise-software and other deeply embedded businesses can be such durable compounders — every year of incumbency makes the customer harder to dislodge.

How to test it

Ask: if a competitor offered the same product 20% cheaper, would customers actually move? If switching means weeks of disruption, retraining and risk, the answer is usually no — and the moat is real. If customers could switch over a weekend with no pain, the apparent loyalty is fragile, and so is the business's pricing power.