How Much Does a Code Audit Cost? 2026 Pricing Breakdown

You need to audit your codebase. Maybe investors are asking, maybe you inherited code from an agency, or maybe you just want to know what you're working with before it becomes a problem.

The first question: How much is this going to cost?

The honest answer: anywhere from $0 to $50,000+, depending on what you need.

This guide breaks down the real costs of code audits in 2026, so you can choose the right option for your situation.

Code Audit Pricing: Quick Overview

Let's break each option down.

Option 1: DIY Internal Review — $0

What it is: Your own engineers audit the codebase.

Pros:

• Free (aside from opportunity cost)
• Your team knows the code best
• No external access required

Cons:

• Blind spots — you don't know what you don't know
• Political pressure to downplay issues
• Takes senior engineers away from shipping

When it works: You have experienced engineers who can step back objectively, and the stakes are low enough that missing something won't sink you.

When it doesn't: Fundraising, acquisitions, or any situation where an external perspective matters.

Option 2: Automated Tools — $0 to $200

What it is: Software that scans your codebase for security issues, code quality, and architectural patterns.

Examples:

• SonarQube (free/paid tiers)
• Snyk (dependency scanning)
• GitHub Advanced Security ($49/user/month)
• SystemAudit.dev (free scan, $49-$199 for full reports)

Pros:

• Fast — results in minutes, not weeks
• Consistent — no human bias
• Affordable — often free for basic scans
• Repeatable — run as often as you want

Cons:

• Less contextual than human review
• May flag false positives
• Won't catch business logic issues

When it works: You need a quick baseline, ongoing monitoring, or a sanity check before deeper review. Also ideal for non-technical founders who need something they can understand.

Option 3: Freelance Consultant — $2,000 to $8,000

What it is: Hiring an independent security expert or senior engineer to review your code.

Typical rates:

• Junior consultant: $100-$150/hour
• Senior consultant: $200-$350/hour
• Full audit (20-40 hours): $2,000-$8,000

Pros:

• Human judgment and context
• Can focus on specific concerns
• Often more affordable than agencies
• Direct relationship

Cons:

• Quality varies wildly
• Single point of failure
• Finding good ones is hard
• Still takes 1-2 weeks

When it works: You have a specific concern (security, scalability, architecture) and can vet the consultant's expertise.

How to find them:

• Toptal, Gun.io (vetted freelancers)
• LinkedIn (search "code audit" + your tech stack)
• Ask your network

Option 4: Security Firm / Consultancy — $10,000 to $50,000+

What it is: Professional services firms that specialize in security audits, penetration testing, and technical due diligence.

Typical pricing:

• Basic security audit: $10,000-$20,000
• Comprehensive audit: $20,000-$35,000
• Enterprise/M&A due diligence: $35,000-$100,000+

Pros:

• Thorough and professional
• Defensible reports for investors/acquirers
• Cover compliance requirements (SOC 2, HIPAA)
• Team with diverse expertise

Cons:

• Expensive
• Slow (2-6 weeks typical)
• May be overkill for early-stage startups
• Scheduling and availability

When it works: Late-stage fundraising, M&A transactions, enterprise sales requiring compliance, or when you need a report that carries external credibility.

Examples: NCC Group, Bishop Fox, Trail of Bits, Cure53

Option 5: Hybrid Approach — $500 to $3,000

What it is: Use automated tools for the initial scan, then bring in human expertise for interpretation and prioritization.

How it works:

1. Run an automated audit (free-$200)
2. Review findings with a consultant (2-4 hours, $400-$1,400)
3. Prioritize and create action plan

Pros:

• Best of both worlds
• Fast initial results
• Human context where it matters
• Cost-effective

Cons:

• Requires coordination
• Still need to find a good consultant

When it works: Most startups raising Series A or B. You get speed and depth without the $20K+ price tag.

What Affects Code Audit Pricing?

1. Codebase Size

2. Tech Stack Complexity

• Single language, standard framework: baseline pricing
• Multiple languages, microservices: +30-50%
• Legacy code, custom frameworks: +50-100%
• Regulated industry (fintech, healthcare): +50-100%

3. Scope of Review

4. Urgency

• Standard timeline (2-4 weeks): baseline
• Expedited (1 week): +25-50%
• Rush (days): +50-100%

What Should You Choose?

If you're a pre-seed/seed startup:

Recommendation: Automated tool ($0-$100)

You don't need a $20K audit. Run an automated scan to catch obvious issues, fix critical security problems, and move on. Save the big audits for when investors require them.

If you're raising Series A:

Recommendation: Automated scan + light consultant review ($500-$2,000)

Investors may do their own due diligence. Get ahead of it with an automated report you can share, plus a few hours with a consultant to interpret findings and prioritize fixes.

If you're in M&A or Series B+:

Recommendation: Professional firm ($15,000-$50,000)

The stakes justify the cost. Acquirers and growth investors expect thorough, defensible reports. This is table stakes at this level.

If you're a non-technical founder:

Recommendation: Automated tool with business translation ($50-$200)

You need findings you can actually understand. Look for tools that explain issues in plain English, not just technical jargon. SystemAudit.dev is built specifically for this.

How SystemAudit.dev Fits

We built SystemAudit.dev because we saw founders paying $10K+ for audits they could get in minutes.

What you get:

• Security scan (exposed secrets, vulnerabilities)
• Architecture map (visual system diagram)
• AI readiness grade (A-F with improvement trajectory)
• Business translation (plain-English findings)
• Prioritized fix list with effort estimates

Pricing:

• Free: Public repos, basic scan
• Starter ($49): Private repos, AI readiness grade
• Pro ($99): Multi-repo, PDF export
• Team ($199): Team access, Slack integration

When it makes sense:

• You need results today, not in 3 weeks
• You want findings you can understand without being technical
• You're preparing for fundraising and want to know what investors will see
• You inherited code and need a quick baseline

Frequently Asked Questions

How often should I audit my codebase?

For fast-moving startups: run automated scans monthly or before major milestones. Comprehensive audits are typically done annually or before fundraising/acquisition events.

Can I negotiate audit pricing?

Yes, especially with consultants and smaller firms. Scope reduction is the main lever — focus on security only vs. full review. Timing flexibility can also reduce costs.

Is a code audit tax deductible?

Typically yes, as a business expense. Consult your accountant, but security and due diligence costs are generally deductible.

What's the ROI of a code audit?

The main ROI is risk avoidance: catching a $100K security breach before it happens, preventing a failed acquisition due to technical issues, or avoiding a valuation reduction from investor due diligence findings.

Bottom Line

Don't overpay for what you need. A $100 automated scan catches 80% of what a $20K audit finds — and you get results today instead of in three weeks.

Related reading:

• What Do Investors Look for in a Code Audit?: The specific criteria investors evaluate
• Technical Due Diligence: What Investors Check in Your Code: How investors assess your codebase
• Code Audit Checklist: Complete security and code quality checklist
• Find Exposed Secrets in Your GitHub Repo: The #1 security issue to check first