The verdict in three sentences
Before switching vendors, a Laravel code audit in Amsterdam costs, as a 2026 order of magnitude, 5,000 to 15,000 EUR excl. VAT for 5 to 10 days of work. It turns a vague feeling ("the code is bad") into quantified technical debt, a list of flaws and a prioritized remediation plan. In most cases a Laravel app can be taken over and modernized rather than rewritten, provided the data model is sound.
What a serious audit contains
The managing director of an Amsterdam SME (maintenance management software, booking platform, client portal) is leaving the historical vendor. They inherit a Git repository, sometimes incomplete, and one question: what will the next step cost? The audit answers with verifiable deliverables.
| Deliverable | What is checked | Example finding |
|---|---|---|
| Technical inventory | PHP, Laravel, MySQL, Node versions, Composer and npm dependencies | PHP 7.4 and Laravel 6, out of security support since 2022 |
| Security | OWASP flaws, injections, permissions, secrets in the repo | API keys in plain text in a committed .env file |
| Code quality | Static analysis (PHPStan, Larastan), duplication, complexity | 38 % duplicated code in controllers |
| Architecture and data | Database model, migrations, queues, cache | Migrations out of sync with the production database |
| Tests and deployment | Coverage, CI/CD, release procedure | 0 automated tests, deployment over FTP |
| Performance | N+1 queries, indexes, response times | List page loading in 4.2 seconds |
| Quantified debt and plan | Estimated days per workstream, priority order | 45 days of remediation, 12 of them critical |
A 5,000 EUR audit covers a mid-size app (30,000 to 60,000 lines) with a summary report. At 15,000 EUR you add a light penetration test, an infrastructure review and a handover workshop with the future vendor. GDPR exposure is also reviewed, which matters for Dutch companies under the oversight of the Autoriteit Persoonsgegevens.
Take over or rewrite: the decision grid
A rewrite always sounds appealing and nearly always costs more than planned. A business app rebuilt from scratch often requires 80,000 to 250,000 EUR and 6 to 12 months while the old version keeps running.
| Criterion | Lean toward takeover | Lean toward rewrite |
|---|---|---|
| Data model | Consistent, reliable migrations | Inconsistent, corrupted data |
| Laravel version | 6 to 10, upgrade feasible | In-house framework or heavily patched Laravel 4 |
| Business logic | Isolated in services or models | Scattered across views and JavaScript |
| Estimated debt | Under 40 % of rewrite cost | Over 60 % of rewrite cost |
| Functional fit | Still meets the need | The business has changed deeply |
| Indicative 2026 cost | Upgrade 6 to 11: 10,000 - 35,000 EUR | Rewrite: 80,000 - 250,000 EUR |
The upgrade from Laravel 6 to 11 goes step by step (7, 8, 9, 10, 11) on PHP 8.2 or 8.3. Its cost depends mainly on abandoned packages to replace and on missing tests, which must be written along the way to secure each step.
Conditions for the audit to serve the takeover
Secure access first: full repository with history, server, database, DNS, third-party accounts (payments, email delivery, storage). Check the contract: source code ownership and transfer of rights must be explicit. Ask the auditor to be independent from the future vendor, or at least to deliver a factual report with estimates in days that several vendors can price.
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Daan, managing director of an industrial maintenance SME in Amsterdam (illustrative persona), is considering a rewrite quoted at 140,000 EUR. The audit, billed 9,000 EUR, finds a sound data model and 45 days of remediation. At 800 EUR per day, the takeover costs 36,000 EUR. Audit plus takeover: 45,000 EUR, a 95,000 EUR saving compared to the rewrite and about 7 months gained.
FAQ
How much does a Laravel code audit cost in Amsterdam?
As a 2026 order of magnitude, 5,000 to 15,000 EUR excl. VAT depending on app size and depth of security testing. Turnaround is 5 to 10 working days.
Do we need an audit if the new vendor proposes a full rewrite?
Yes, that is exactly when it is most useful. A 7,000 EUR audit can prevent an unnecessary 120,000 EUR rewrite.
How much does upgrading from Laravel 6 to Laravel 11 cost?
Budget 10,000 to 35,000 EUR depending on packages to replace and existing tests. With no tests at all, plan for the high end.
Can the audit be done without the full source code?
No, that is the first thing to fix. Without Git history or production database access, about 30 % of findings cannot be verified.
What happens after the audit?
The report becomes the specification for the takeover: critical work first (security, unsupported versions), then performance and tests, over 1 to 3 months.
Let's scope your project. We audit your Laravel app and price the takeover: scope, debt in days, remediation budget and schedule. 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.
