Technical Debt
Technical debt is the implied cost of future rework caused by choosing a quick or easy solution over a better approach that would take longer. Like financial debt, it accumulates interest. It slows development, increases bugs, and makes codebases harder to maintain over time. Managing technical debt is a key challenge for every software team.
Key Statistics
- • Engineers spend an estimated 33% of their time dealing with technical debt. / Stripe Developer Coefficient Report
- • Technical debt costs companies an estimated $85 billion per year in lost productivity. / Stripe Developer Coefficient Report
- • 61% of developers say technical debt significantly slows down their development velocity. / Stepsize Developer Survey
- • The average codebase has a technical debt ratio of 25%, meaning 1 in 4 hours of development is spent on debt-related work. / CAST Software Intelligence Report
Why This Matters
Technical debt is one of the most common challenges software teams face. Left unmanaged, it compounds over time. What starts as a small shortcut becomes a major obstacle to shipping new features, onboarding new developers, and maintaining system reliability.
The most effective teams don't try to eliminate technical debt entirely. Instead, they develop strategies to measure it, prioritize it against feature work, and pay it down incrementally. Understanding when to take on debt and when to pay it back is a critical engineering leadership skill.
On the Maintainable Software Podcast, dozens of guests have shared real-world strategies for managing technical debt. Topics range from behavioral code analysis to cultural approaches that make maintenance work visible and valued.
Episodes on Technical Debt
EP-039 | January 20, 2020
Adam Tornhill: Prioritizing Technical Debt With Behavioral Code Analysis
EP-023 | September 16, 2019
Sandro Mancuso: Technical Debt is Anything Preventing You From Developing Fast
EP-001 | April 15, 2019
Anna Filina: How Every Decision Introduces Technical Debt
EP-064 | August 31, 2020
Gant Laborde: Technical Debt — Trading Risk for an Advantage
EP-044 | February 24, 2020
Ben Orenstein: "Someday We'll Go Clean That Up" Doesn't Work
EP-043 | February 17, 2020
Ernesto Tagwerker: Tracking Technical Debt With Metrics (aka Stink Score)
EP-093 | March 22, 2021
Alexandre Omeyer: Removing the Barriers to Track Technical Debt
EP-199 | February 18, 2025
Marty Haught: Rethinking Technical Debt—Is It Really Just Drift?
EP-045 | March 2, 2020
Jon Thornton: Technical Debt is a Good Thing (Sometimes)
EP-096 | April 12, 2021
Bertold Kolics: Are You Carrying the Weight of Dead Code?
EP-151 | October 3, 2023
Dave Bryant Copeland - Quantifying the Carrying Cost
EP-011 | June 24, 2019
Anne Marie Kirby: Selling the Upside of Improving your Codebase to Management
Frequently Asked Questions
What is technical debt in software development?
Technical debt refers to the implied cost of additional rework caused by choosing an easier solution now instead of a better approach that would take longer. It includes shortcuts in code, outdated dependencies, missing tests, and architectural compromises that slow future development.
How do you measure technical debt?
Technical debt can be measured through code complexity metrics, change frequency analysis (behavioral code analysis), automated code quality tools like CodeScene or SonarQube, developer surveys on friction points, and tracking the ratio of maintenance work to feature development over time.
What are the best strategies for paying down technical debt?
Effective strategies include dedicating a fixed percentage of each sprint to debt reduction, prioritizing high-traffic code hotspots first, using the Boy Scout Rule (leave code better than you found it), writing characterization tests before refactoring, and making debt visible through metrics and dashboards.
How do you convince management to prioritize technical debt?
Frame technical debt in business terms: slower feature delivery, higher bug rates, increased onboarding time, and developer attrition risk. Use metrics to quantify the cost of debt and present incremental improvement plans that deliver measurable results alongside feature work.
What's the difference between technical debt and legacy code?
Technical debt refers to shortcuts and compromises that create future maintenance costs, while legacy code is older code that may be difficult to modify or extend. Legacy code often carries significant technical debt, but not all technical debt exists in legacy systems. Even new codebases can accumulate debt through rushed decisions.