How to Prep Your Codebase for M&A Due Diligence

Technical due diligence is often the stage where a promising acquisition hits a wall. There are dozens of deals that stall or face re pricing every day because of software uncertainty. While founders focus on the final valuation, buyers focus on the risk buried in the code.

Engineering leaders must shift from a feature delivery mindset to an audit ready posture well before the letter of intent arrives. You want to present a system that is transparent and defensible, rather than a black box of technical debt.

Proactive reorganization of your documentation and operational evidence allows a buyer to move from suspicion to trust in a fraction of the time. Here are tips to prep your codebase for M&A due diligence.

Start With Licensing and Dependency Clarity

The primary question in any technical audit is whether you actually own the software you claim to sell. Open source software is the most common point of failure because hidden restrictive licenses can legally compromise an entire proprietary product.

You should build a comprehensive view of everything your code touches, including deep transitive library dependencies that aren’t visible on the surface. Buyers need assurance that no copyleft terms will require disclosing proprietary intellectual property after the deal closes.

Third Party Contracts and Alignment With Law

Most modern software systems rely on external vendors, APIs, and cloud infrastructure providers. Such relationships are examined with just as much scrutiny as internal code during technical diligence.

Engineering and legal teams need to collaborate. During business mergers and acquisitions in the software sector, attorneys often examine intellectual property ownership, contract assignment clauses, and vendor consent requirements to ensure technical systems align with legal obligations.

Ensuring legal workstreams align with your technical architecture prevents last minute surprises. If a critical API requires consent to transfer, knowing that months in advance keeps the deal moving.

Create a Reliable SBOM Early On

The Software Bill of Materials (SBOM) has transitioned from a niche security practice to a standard requirement for modern tech transactions. It serves as a comprehensive inventory of every component in your software ecosystem and how those parts interact.

A high quality SBOM allows a buyer to assess supply chain exposure and identify outdated dependencies without a manual, week long repository crawl. It provides an immediate snapshot of your technical health.

The best approach involves generating these reports through automated tools rather than manual spreadsheets. Automated SBOM generation significantly impacts transaction speed in tech acquisitions by providing real time data.

Security Evidence Is More Important Than Security Claims

Buyers do not care about your security intentions; they care about your security history. They want to see a consistent track record of identifying, documenting, and remediating vulnerabilities over time. Ignoring technical debt and security gaps can result in an ROI decline of up to 29% for the acquirer.

A robust security posture includes several specific types of evidence:

Static and dynamic application security testing logs
Historical records of third party penetration tests
Documented remediation cycles for identified high risk vulnerabilities

Raw data is rarely enough to satisfy a sophisticated buyer. You must demonstrate a repeatable process where security fixes remain in place across different versions of the software.

Test Coverage and Deployment Discipline

Irregular or non existent test coverage suggests to a buyer that your system behavior is not fully understood or validated. The buyer may perceive the software brittle or expensive to maintain after the acquisition.

You do not need 100 percent coverage to pass an audit, but your core business logic must be protected by automated testing . Critical workflows like payment processing, authentication, and data pipelines are the first things an auditor will check. High levels of technical debt and architectural flaws are primary drivers of deal devaluations.

Operational Maturity Revealed Through CI/CD

Your deployment pipeline often reveals more about your team’s discipline than the source code itself. Messy pipelines or a lack of clear approval processes are red flags for deep organizational issues.

Before diligence begins, verify that your build system documentation and access control procedures are perfectly accurate. Secrets management must be reviewed to ensure no sensitive credentials have been accidentally exposed in logs or version history.

Building Lasting Technical Readiness

M&A readiness is not about achieving a perfect codebase. It is about your ability to reduce uncertainty for the person holding the checkbook. When purchasers see exactly how a product was built, secured, and maintained, they move with significantly more speed.

Providing clarity changes the entire dynamic of the negotiation from a defensive reaction to a position of strength. For more insights on scaling your engineering operations, check out our recent guide on optimizing distributed development teams.

Author
Recent Posts

Bogdan Sandu

Bogdan Sandu specializes in web design, focusing on creating user-friendly websites, and innovative UI kits.

Many of his resources are available on various design marketplaces and for free on Codepen.

Over the years, he's worked with a range of clients and contributed to design publications like Design Your Way, Designmodo, WebDesignerDepot, WPDean, Speckyboy, and Slider Revolution among others.