How Much Does QA Outsourcing Cost in the UK?
Transparent pricing ranges, what drives costs up or down, and the hidden expenses most teams forget to factor in.
Last updated: January 2026 · Based on UK market rates
The short answer
Outsourced QA in the UK costs £1,500 to £4,500+ per month for retainer engagements, or £450 to £900 per day for ad hoc work. One-off project engagements typically range from £1,500 to £6,000 depending on scope. Enterprise programmes with dedicated engineers are priced from £8,000 per month upward.
These are 2026 UK market rates. Offshore QA can be 40-60% cheaper but introduces communication overhead, time-zone friction, and quality variability. Most UK product teams find UK-based or near-shore European agencies a better overall value proposition.
UK QA outsourcing pricing by model
Typical market ranges for 2026. Prices vary by agency, specialisation, and engagement terms.
| Engagement model | Price range | Typical |
|---|---|---|
| One-off accessibility audit | £800 - £2,500 | ~£1,500 |
| Pre-launch QA engagement | £1,500 - £6,000 | ~£3,000 |
| Monthly retainer - Starter | £1,200 - £2,000/month | ~£1,500/month |
| Monthly retainer - Professional | £3,500 - £5,500/month | ~£4,500/month |
| Enterprise / dedicated team | Custom | From £8,000/month |
| Day rate (ad hoc) | £450 - £900/day | ~£600/day |
What drives QA costs up or down?
Scope of testing
High impactThe number of features, user journeys, and platforms to test is the primary cost driver. A pre-launch audit of a five-page marketing site costs a fraction of ongoing regression testing for a complex SaaS product.
Manual vs automated
High impactAutomation setup has an upfront investment (writing the suite) that pays back over time in lower execution costs. Manual testing has a lower setup cost but higher ongoing cost per test run.
Test environment complexity
Medium impactApplications with complex test data requirements, sandboxed payment gateways, SAML authentication, or microservice environments take longer to set up and maintain.
Regularity
Medium impactRetainer engagements (monthly) are more cost-effective per hour than ad hoc project work. Agencies can plan resource more efficiently with regular commitments.
Specialist skills
Medium impactAccessibility audits, performance testing, AI/LLM testing, and security testing require specialist knowledge that commands a higher rate than general functional QA.
Turnaround time
Low-Medium impactRush engagements or short-deadline projects may carry a premium. Standard turnaround is typically 3-5 business days to begin.
Hidden costs teams often forget
These are not costs to avoid - they are costs to plan for.
Internal coordination time
QA requires access to your test environment, an onboarding session, and ongoing communication. Budget 2-4 hours of internal time per month for a retainer engagement.
Test environment maintenance
If your test environment is unreliable, testing costs more. Time spent diagnosing environment issues is time not spent testing. A stable staging environment dramatically improves QA efficiency.
Bug triage and developer time
Good QA finds bugs. Fixing them costs developer time. This is a benefit, not a cost, but teams sometimes forget to account for the engineering time required to act on QA findings.
Tooling and infrastructure
CI/CD integration, test reporting dashboards, and browser testing infrastructure have their own costs. Most are included in agency retainers, but worth confirming.
Outsourced QA vs in-house QA: total cost comparison
A mid-level QA engineer in London costs £40,000 to £60,000 per year in salary alone. Add employer NI, pension, equipment, software licences, management overhead, and the true cost reaches £55,000 to £80,000 per year for a single hire. A retainer QA agency at £4,500/month is £54,000 per year, and covers planning, documentation, tooling, and cross-specialisation in that cost.
The economics favour outsourcing when: testing needs are variable, you need specialist skills, or you are building the QA function from scratch without an existing team infrastructure. They favour in-house when testing is continuous, your product has highly complex domain knowledge requirements, or quality is a core differentiator where building institutional knowledge pays off long-term.
Read the full QA Agency vs In-House comparisonReady to Ship with Confidence?
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