The verdict in three sentences
Before signing, an enterprise buyer will almost always ask for a penetration test report less than 12 months old, and a security questionnaire without evidence is no longer enough. A grey-box pentest against the OWASP Top 10 costs USD 6,000 to 18,000 for 5 to 12 testing days, retest included. Against the average cost of a data breach, estimated by IBM at USD 4.4 million in 2025, it is the cheapest insurance in your sales cycle.
What a pentest costs by scope
Pentest pricing depends on tester days, which depend on the number of user roles, screens and API endpoints. 2026 day rates sit between USD 1,100 and 1,700 at established firms, and higher for CREST-accredited or specialised providers.
| Scope | Example | Testing days | Budget |
|---|---|---|---|
| Simple application | site with customer area, 2 roles | 4 to 5 days | USD 6,000 to 7,800 |
| Standard B2B SaaS | 3 to 4 roles, 30 to 60 screens, REST API | 6 to 8 days | USD 8,400 to 12,600 |
| Multi-tenant platform | tenant isolation, SSO, public API | 9 to 12 days | USD 13,200 to 18,000 |
| Add a mobile app | iOS and Android on the same API | +3 to 5 days | +USD 4,200 to 7,800 |
| Retest after fixes | verifying remediated findings | 1 to 2 days | USD 1,200 to 3,000 |
| Accredited provider premium | CREST or regulated-sector requirement | not applicable | +15 to 25% |
Grey-box testing, where the tester gets test accounts for each role, gives the best cost-to-coverage ratio. Black-box testing simulates an outside attacker but leaves most of the business logic untested, which is exactly what enterprise buyers want to see covered.
What the enterprise buyer will check in the report
| Report element | Typical enterprise expectation | Watch-out |
|---|---|---|
| Test date | under 12 months old | retest after a major rebuild |
| Methodology | OWASP Top 10 and OWASP ASVS level 2 | state the version (2021 or 2025) |
| Critical and high findings | all remediated | attach the retest letter |
| Cross-tenant access control | explicitly tested | the first flaw found in multi-tenant SaaS |
| SOC 2 alignment | pentest evidence for CC7.1 and CC4.1 | auditors expect it annually |
| Executive summary | 1 to 2 pages a buyer can read | this is what circulates internally |
In our projects, the most common pre-launch flaws remain broken access control (a user reading another customer's data by changing an ID in the URL), session tokens not properly invalidated and no rate limiting on login. All can be fixed in a few days if found before going live.
The right timeline: 3 to 6 weeks
Book the tester 2 to 3 weeks ahead, because good firms are often fully booked. Then allow 1 to 2 weeks of testing, 3 to 5 days for the report, 1 to 2 weeks of fixes and the retest. Starting the pentest the day before a signature is the best way to present a report with open findings.
Mini case study
Daniel, CTO of a 60-person SaaS company in Austin, must hand a pentest report to a Fortune 500 prospect before signing a USD 200,000 a year contract. He orders an 8-day grey-box test at USD 1,300 a day, USD 10,400, plus a 1-day retest at USD 1,300. Total: USD 11,700, or 5.85% of the first contract year. The test uncovers 2 high-severity tenant isolation flaws, fixed in 6 days. The clean retest report, with no open critical or high findings, also feeds his SOC 2 Type II evidence and unblocks the deal.
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FAQ
How much does a web app pentest cost in 2026?
Expect USD 6,000 to 18,000 for a web application, depending on roles, screens and APIs. A retest adds USD 1,200 to 3,000.
Do we need an accredited provider?
Some regulated buyers (banks, insurers, government) require CREST or equivalent accreditation, usually 15 to 25% more expensive. For most commercial buyers, an experienced firm with a solid methodology is enough.
How long does a pentest take?
Five to twelve testing days depending on scope, and 3 to 6 weeks from order to retest report. Build that margin in before any major signature.
Can a pentest break production?
Testing ideally runs on a staging environment identical to production. If production is tested, destructive tests are excluded by contract.
How often should we repeat it?
At least once a year, and after every major change (new payment module, SSO, public API). SOC 2 auditors and most enterprise buyers expect a report under 12 months old.
Let's scope your project. Describe your application (roles, APIs, hosting) and your customer's requirement: we will scope a pentest between USD 6,000 and 18,000, fixes included, ready in 3 to 6 weeks. 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.
