Why Technical Debt Accumulates and How to Tackle It Effectively

First part: How technical debt forms

Technical debt, a metaphor coined by Ward Cunningham in 1992, describes the accumulated cost of sub‑optimal or wrong technical decisions, whether intentional or accidental.

It is not a simple financial debt; it represents hidden, negative assets in software systems that can grow over time.

In highly IT‑dependent organizations—Internet companies, telecoms, finance, tax authorities—core assets include code, data, and technical staff, making technical debt a critical concern.

Technical debt arises from many sources, such as temporary MVP solutions, outdated platforms, lack of documentation, over‑design, poor technology choices, code rot, design flaws, ignored data collection, insufficient security, and manual testing.

Second part: Risks and perception of technical debt

Some debt is a conscious trade‑off due to limited resources, while other debt appears unintentionally, creating uncertainty.

Unaddressed debt can increase hidden costs, cause system failures, and lead to cascading problems, especially in complex internet environments.

Typical consequences include unpredictable failures, longer delivery times, higher defect rates, rising support costs, product shrinkage, reduced predictability, performance degradation, team frustration, and lower customer satisfaction.

Third part: Ways to repay technical debt

Unlike financial debt, technical debt has no formal creditor or deadline, but it must be addressed before it triggers crises.

Common repayment methods are early detection, incremental refactoring, or full reconstruction when debt becomes tangled.

Sometimes debt can be ignored if its impact is tolerable, the product is being retired, or new technology mitigates the issue.

Fourth part: Preventing a debt crisis

Maintain a debt backlog, record each issue promptly, prioritize, and track relationships.

Adopt disciplined engineering practices: hire capable talent, enforce robust project processes, conduct design reviews, perform code reviews, manage cross‑domain technologies with expert groups, conduct post‑mortems, and implement comprehensive monitoring.

Fifth part: Living with technical debt as a developer

Every engineer will encounter technical debt; acknowledging its inevitability and managing it responsibly is essential.

Large systems accumulate more debt, so senior technical leaders must allocate resources for debt repayment, optimization, and innovation to avoid systemic risk.