Technical debt is the engineering equivalent of a credit card. A little is fine — you pay it off when you have time. A lot, left unchecked, starts compounding until the interest payments consume your entire sprint.
The problem is that technical debt is invisible to most stakeholders. Revenue is down, the sprint velocity has halved, and engineers are spending 60% of their time on “maintenance”. No one called it debt — it just happened.
Here is how to spot it early.
First, watch your bug recurrence rate. If the same category of bug keeps appearing in different parts of the codebase, you have a structural problem — not a one-off. Second, track your time-to-first-PR on new features. If it keeps growing, your architecture is slowing you down. Third, ask your engineers directly. They know. They are just not always asked.
The fix is not a debt sprint — it is building repayment into every sprint as a first-class citizen. Budget 20% of capacity for debt reduction every cycle. Track it like a feature. Review it in your sprint retros.
Technical debt paid early is cheap. Technical debt paid at crisis point is expensive in ways that go far beyond the engineering cost.
