A 20-person software company once set aside €2,000 for a cybersecurity audit. The founders expected a tidy report, a few minor fixes and a reassuring conversation with customers. Instead, the audit exposed weak access controls, outdated systems and no reliable process for removing former employees from internal accounts.
The audit itself fit the budget. The consequences of waiting did not.
That is the uncomfortable part of cybersecurity auditing for small and medium-sized businesses. The price of the assessment can be manageable, yet the work it reveals may cost far more. A cheap audit is not necessarily a bargain if management treats the report as paperwork rather than a repair list.
The short answer: expect anything from thousands to six figures
A basic cybersecurity audit for an SME with roughly 20 employees commonly falls between €1,500 and €3,500. That type of engagement usually examines fundamental controls, including user access, password practices, device security, backups, policies and the organisation’s general exposure to common threats.
This is the entry point, not a universal price tag. A small retailer with a limited cloud setup may need a much narrower review than a healthcare supplier handling sensitive personal data. The company’s industry, systems, customer requirements and regulatory obligations can change the scope quickly.
A penetration test costs more because it involves actively probing systems for weaknesses. An external test for a small business may cost about $2,500 to $6,000. An internal test is often more expensive, at roughly $4,000 to $10,000, because it examines what an attacker or compromised employee could do after gaining access to the internal environment.
Those figures describe individual services. They should not be confused with the cost of building a mature security programme.
Why the invoice grows so quickly
Auditors do not charge only for the hours spent asking questions. They charge for specialist expertise, technical testing, evidence review, reporting and the risk attached to their professional judgement. A credible audit also takes time from the client’s own staff, who must provide documents, explain processes and demonstrate how systems actually work.
That last point is easy to underestimate. In a small company, the person responsible for IT may also manage vendors, onboard staff, approve software and deal with customer support. Every hour spent preparing evidence is an hour taken from another job, even if it never appears on the auditor’s invoice.
Scope matters more than headcount alone. Twenty employees using a handful of cloud applications may present a simpler audit than 50 employees spread across offices, remote devices, legacy servers and several external providers. A small business can have a surprisingly complicated technical footprint, especially after years of adding tools one subscription at a time.
A basic audit may identify gaps without testing every system in depth. A penetration test attempts to exploit weaknesses. A compliance audit checks whether the organisation can demonstrate that it follows a defined framework. These are related activities, but they answer different questions.
Compliance audits are a different financial category
Businesses pursuing SOC 2 should expect a noticeably larger budget. A SOC 2 Type 1 audit for a small or medium-sized company can cost about $5,000 to $20,000 in audit fees. Type 1 focuses on whether controls are suitably designed at a particular point in time.
SOC 2 Type 2 demands more. It assesses whether controls operated effectively over a period, rather than merely existing on paper. For a company with fewer than 50 employees, audit fees alone may be approximately $7,500 to $20,000.
The phrase “audit fees alone” does most of the important work in that sentence. Preparation, evidence collection, security tools, policy development and employee time can dwarf the fee paid to the audit firm. Across the first year, total SOC 2 spending can commonly reach $30,000 to $150,000.
That range sounds absurdly wide until the differences between companies become clear. One firm may already have centralised identity management, reliable logging, documented procedures and an experienced security lead. Another may need to create those foundations from scratch while continuing to serve customers.
SOC 2 is not simply a more expensive version of a basic security check. It is a sustained operating discipline that produces evidence over time. Paying for the final audit while ignoring the months of preparation is like budgeting for a driving test but not for lessons, fuel or a working car.
ISO 27001 can cost more before certification even begins
For a startup or SMB pursuing ISO/IEC 27001, the initial investment may be around $39,000 to $93,000. A standalone certification audit can cost approximately $12,000 to $25,000.
The difference between those figures reflects the broader work involved in creating an information security management system. The organisation must define its scope, assess risks, establish controls, document responsibilities and show that the system is being managed rather than assembled for one inspection.
Certification can carry commercial value, especially when large customers demand formal assurance. But a certificate will not magically turn careless behaviour into secure behaviour. If employees share accounts, managers approve access informally and nobody tests backups, a polished framework can become expensive theatre.
That is why buyers should ask what the audit is meant to change. Is the goal to satisfy a procurement requirement? Reduce operational risk? Prepare for a customer assessment? Find weaknesses before an attacker does? A clear answer prevents a company from purchasing the most prestigious audit when a smaller, more practical engagement would serve it better.
The hidden cost is remediation
The audit report is often the beginning of the bill, not the end. Fixing a critical finding may involve replacing unsupported software, redesigning permissions, introducing multifactor authentication, improving backup protection or hiring outside help.
Some fixes cost almost nothing but require discipline. A company may need to revoke dormant accounts, formalise onboarding and offboarding, or stop storing sensitive files in unmanaged locations. Other findings can demand new security platforms, hardware upgrades or changes to business processes.
A small business should separate three budgets: the assessment, the corrective work and the ongoing operation of the controls. Mixing them together makes a quote look either frighteningly high or deceptively cheap.
The same principle applies to penetration testing. A test can reveal a vulnerable internet-facing application, but the tester’s invoice does not include rewriting the application, retesting the fix or changing the development process that created the weakness. Those tasks may require developers, engineers and project time.
This is where many SMEs make a bad calculation. They compare the cost of an audit with the cost of doing nothing, as if the two were competing purchases. In reality, the audit exposes the price of choices already made: old systems kept in service, informal access decisions and security treated as someone’s spare-time responsibility.
How to keep the cost under control
The most effective cost control is a precise scope. An SME should decide which systems, locations, data types and business processes are included before asking for proposals. Vague requests invite vague deliverables, and vague deliverables make competing quotes almost impossible to compare.
Ask whether the price includes interviews, technical testing, evidence review, a written report, a management briefing, remediation guidance and a retest. Two firms may quote similar amounts while offering very different levels of work.
Preparation also matters. Keeping an up-to-date asset list, documenting key processes and assigning one internal contact can reduce wasted audit time. It will not hide weaknesses, nor should it, but it can prevent the auditor from spending expensive hours reconstructing basic information that the company should already understand.
A staged approach can be sensible. Start with a focused risk assessment or baseline audit, address the most serious gaps, then commission penetration testing or pursue a formal framework once the organisation has the capacity to maintain it. Buying a demanding certification programme before basic controls exist is a costly way to discover that the foundation is missing.
There is a danger in taking this advice too far. “We will start small” can become a permanent excuse for avoiding serious work. A basic audit is useful only if its findings lead to decisions, owners and deadlines.
Should every SME pay for an audit?
No. Some companies need a formal independent audit because customers, insurers, regulators or investors require evidence. Others may gain more from a focused security review, a penetration test or practical help from an experienced consultant.
But an SME that handles valuable data, depends heavily on cloud systems or makes strong security promises to customers should be suspicious of its own confidence. Familiarity with the business is not the same as visibility into its weaknesses. I have seen small teams spend more time polishing security policies than checking whether a departing employee still has access, which is the corporate equivalent of putting a new lock on the front door while leaving a side entrance open.
The most useful audit is not the one with the most impressive badge attached to it. It is the one that produces findings the business can understand, prioritise and fix without pretending that the report itself created security.
For a small company, €1,500 may buy a valuable reality check. For a firm chasing SOC 2 or ISO/IEC 27001, the first-year commitment may rise to tens of thousands or more. The uncomfortable question is whether the company wants an audit to prove that it is secure, or to discover what it has been unwilling to examine.