The verdict in three sentences
A takeover technical audit costs between 3,000 and 10,000 EUR in 2026, a fraction of the remediation budget it quantifies. It answers one question: fix or rewrite? Without it, you inherit invisible technical debt that can double your budget mid-project.
What a takeover audit contains in 2026
A serious audit is more than reading code: it assesses security, infrastructure, dependencies and takeover feasibility. Here are the typical workstreams.
| Workstream | Content | 2026 cost (EUR) | Lead time |
|---|---|---|---|
| Code review | Quality, structure, tests | 1,000-3,000 | 3-5 days |
| Security | Vulnerabilities, secrets, deps | 800-2,500 | 2-4 days |
| Infrastructure | Hosting, CI/CD, backups | 500-2,000 | 2-3 days |
| Functional | Specs vs existing gap | 500-1,500 | 2-3 days |
| Report + plan | Remediation estimate | 500-1,500 | 2-3 days |
The realistic total sits between 3,500 and 8,500 EUR for a mid-sized project, delivered with a prioritised takeover plan.
Fix or rewrite: the debt calculation
The report must choose between progressive remediation and rewrite. Here are 2026 ballpark figures.
| Project state | Technical debt | Takeover cost | Typical verdict |
|---|---|---|---|
| Clean code, lightly documented | low | 5,000-15,000 EUR | fix |
| Average code, no tests | medium | 15,000-40,000 EUR | fix + harden |
| Dated architecture | high | 40,000-80,000 EUR | partial rewrite |
| Obsolete / unmaintained stack | very high | 60,000-120,000 EUR | full rewrite |
| Major security flaws | critical | + 5,000-20,000 EUR | fix first |
The audit spares you discovering mid-project that a project bought for 20,000 EUR hides 90,000 EUR of debt.
Mini case study
Thomas, owner of a Toronto construction SME, inherited a site-tracking app left by a failing vendor. The audit, quoted at 6,200 EUR over 2 weeks, reveals a sound base but no tests or backups, and two security flaws. The takeover plan is estimated at 28,000 EUR instead of the 75,000 EUR full rewrite initially feared. The audit represents 8.3% of the takeover budget but saves 47,000 EUR by avoiding a needless rewrite.
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FAQ
How long does a takeover audit take?
In 2026, expect 2 to 3 weeks for a mid-sized project. A rushed 2-day audit is not worth its price: the value is in the costed takeover plan.
Does the audit guarantee the final takeover price?
It gives a solid ballpark estimate, not a fixed price. The range tightens after the first sprints, once grey areas are cleared.
Can a project be taken over without the original vendor?
Yes, that is the point of the audit: to map the project so a new team can take it over. Access to the code and hosting is the absolute prerequisite.
When is a full rewrite justified?
When the stack is obsolete, unmaintained, or debt exceeds 60-70% of a new project's cost. Below that, progressive remediation is almost always more profitable.
What if the audit reveals security flaws?
They take absolute priority over any new feature, for 5,000-20,000 EUR depending on severity. Ignoring a known flaw engages your liability.
Let's scope your project. Give us code access and the takeover context: we deliver a costed audit with a fix-or-rewrite plan. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
