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Benchmark 11 · Custom platforms

Technical debt & legacy platform benchmark

How much of your tech budget is spent keeping old systems alive? We review your platforms, integrations and delivery speed, estimate your technical debt and benchmark it against McKinsey's CIO survey and Stripe's developer research.

The market reference

What the market looks like.

20–40%Of the value of the technology estate is tech debt, CIOs estimate (McKinsey)1
10–20%Of the tech budget for new products diverted to resolving tech debt1
33%Of developer time spent on technical debt (13.5 of 41.1 hours a week, Stripe)2
KPIMarket referenceBest-in-class / noteSource
Tech debt as share of tech estate value20–40%CIO estimates1
New-product budget diverted to tech debt10–20%—1
CIOs seeing tech debt rise over 3 years60%—1
Developer time on tech debt / incl. bad code33% / 42%Self-reported survey2
Application modernisation services market 2025USD 22.67BUSD 51.45B by 20313

Legacy systems tax every new initiative, including AI. MarketsandMarkets values application modernisation services at USD 22.67 billion in 2025, growing 14.6% a year to 20313, as companies rebuild on platforms they own.

Who it’s for

Is this benchmark for you?

Industries

SaaS & tech · Financial services & insurance · Logistics & transport · Manufacturing

Buyer

CIO, CTO & IT · CEO & founder

Company profile

In-house or outsourced software team

You need it if…

  • Most engineering time goes to maintenance
  • Small changes take weeks to release
  • Legacy systems block new AI or integrations
The benchmark

What we measure. What you get.

What we measure

  • System map: platforms, integrations and data flows
  • Share of engineering time on maintenance vs new work
  • Deployment frequency and lead time for changes
  • Incidents, manual workarounds and spreadsheet bridges
  • Licence and hosting cost of legacy components

What you receive

  • Your tech-debt estimate vs the reference ranges
  • Hot spots ranked by cost and business risk
  • Modernise, replace or wrap: option per system
  • Phased platform roadmap with costs and milestones
Typical turnaround: 3–4 weeksService: Custom platformsFree snapshot: available
Industry report · $199 · in production

The full technical debt study.

Planned contents. Everything behind this page, in depth: the numbers by sector and company size, what top performers do differently, and a model to price your own gap.

  • Market size and growth, every analyst estimate reconciled
  • KPI quartiles by company size, sector and region
  • Original survey data from decision-makers
  • Cost-of-the-gap model with worked examples
  • How top-quartile companies close the gap
  • Solution landscape and a 12-month roadmap
  • Self-assessment scorecard
Reserve your copy · $199 Publishing in 2026. Reserve now and we email you the day it is available. No payment today.
How it works

Four steps. No disruption.

01

Intake call

30 minutes with a senior engineer to agree scope, KPIs and the data we need.

02

Data, read-only

Exports or read-only access to the systems involved. Nothing is changed.

03

Analysis

Your numbers placed against the published market references, KPI by KPI.

04

Readout

Your position, the cost gap in dollars and a costed roadmap to close it.

Reports & custom benchmarks

Reserve this report.

Reserve the technical debt industry report, or ask for a custom benchmark on your own data.

  • Your tech-debt estimate vs the reference ranges
  • Hot spots ranked by cost and business risk
  • Modernise, replace or wrap: option per system
Your details are used only to prepare your benchmark. A senior engineer replies, not a sales rep.
Thank you. We have your request and will be in touch by email.

Sources

  1. 1
    McKinsey Digital, “Tech debt: Reclaiming tech equity” (Oct 2020; 50 CIOs). mckinsey.com/capabilities/mckinsey-digital/our-insights/tech-debt-reclaiming-tech-equity
  2. 2
    Stripe, The Developer Coefficient (Sept 2018; 1,000+ developers). stripe.com/files/reports/the-developer-coefficient.pdf
  3. 3
    MarketsandMarkets, Application Modernization Services Market 2025–2031. marketsandmarkets.com/Market-Reports/application-modernization-services-market-149625724.html