Appointing a data protection officer is a legal requirement for some UK businesses, not all. If your core activities involve large-scale monitoring of people or large-scale use of sensitive data, you need one. Then the real question starts: do you hire a DPO or outsource the role? The answer comes down to your size, budget, risk profile and how often you’ll need DPO expertise. This comparison of outsourced DPO vs in-house covers both options honestly, including where outsourcing is the wrong choice.

What a DPO Actually Does Day-to-Day

Under Article 37 of UK GDPR, you must appoint a DPO in three situations:

• You’re a public authority.
• Your core activities involve regular and systematic monitoring of people on a large scale.
• Your core activities involve large-scale processing of special category or criminal offence data.

Article 37 also lets the DPO be an employee or someone working under a service contract. Both options in this comparison are equally lawful.

The DPO’s Core Tasks Under Article 39

The DPO’s tasks are set out in Article 39:

• Advising: telling the organisation and its staff what data protection law requires of them, including advice on data protection impact assessments.
• Monitoring: checking compliance with UK GDPR and your own policies, including staff training and internal audits.
• Acting as the contact point: for the ICO, and for people with questions about how you use their data.

Article 38 sets the conditions. The DPO must be involved early in data protection issues and given the resources to do the job. They take no instructions on how to carry out their tasks, and they report to your highest level of management. Any other duties they hold must not create a conflict of interest. The same rules apply if you appoint a DPO voluntarily. And whoever you appoint, your organisation stays responsible for compliance. The DPO advises and monitors.

In practice, a DPO’s week might include:

• reviewing a new supplier contract
• answering a product team’s question about a planned feature
• escalating a difficult subject access request
• assessing a possible breach against the 72-hour reporting deadline
• preparing a report for the board

The time this takes follows the volume and risk of your processing more closely than your headcount. A 60-person healthtech handling patient records can need more DPO time than a 400-person business holding little beyond HR and marketing data. The work also arrives in bursts. Weeks can pass quietly, then a breach, a DPIA and a client audit land in the same fortnight.

The Cost of Hiring an In-House DPO

Indeed’s UK salary data, drawn from 329 advertised salaries and updated on 2 October 2026, puts the average DPO salary in the UK at £46,635. Most advertised roles fall between about £30,500 and £71,300. London pays more: Glassdoor’s figure for the city, based on 62 self-reported salaries as of September 2026, is £69,638.

Salary is only the starting point. Employing a DPO adds:

• Employer National Insurance: 15% on earnings above £5,000 a year for 2026/27.
• Pension: at least 3% of qualifying earnings under auto-enrolment.
• Training and CPD: keeping up with the Data (Use and Access) Act 2025, ICO guidance and sector rules.
• Professional membership: annual IAPP membership, which also covers the certification maintenance fee for qualifications such as CIPP/E.
• Recruitment: agency fees, or the internal time spent hiring.
• Cover: someone has to step in during holidays, sickness and notice periods.

National Insurance and pension alone add this to the salary figures above:

Two more points affect the real cost of a DPO. First, Article 37 requires the DPO to have expert knowledge of data protection law and practice. In fintech, healthtech or insurance, that points to the upper end of the salary range, not the average. Second, a single hire is one person. If your processing needs more than one person’s time, the cost of in-house cover rises with it.

The Cost of an Outsourced DPO Service

Outsourced DPO services are priced as a retainer, and the price follows the work. The main drivers are:

• how much personal data you process, and how sensitive it is
• how many countries and regulators you deal with
• how many DSARs, incidents and DPIAs you expect in a year
• the response times you need

We haven’t quoted a market range for outsourced DPO cost here. Published prices are hard to compare like for like: one provider’s retainer includes DSAR handling and breach support, while another charges for both separately. When you compare DPO service prices, compare what’s in scope, not just the monthly figure.

As an example of scope, here’s how KEWDATA’s DPO as a service is set up.

Included:

• a named DPO who holds CIPP/E and is registered with the ICO and other European regulators
• ongoing advice and compliance monitoring
• monthly reporting and an annual review
• escalation support for difficult subject access requests
• availability during UK business hours

Charged extra:

• full DSAR response management
• urgent or out-of-hours incident support

The retainer can be adjusted as your processing grows or shrinks, and there’s no long-term lock-in. An employee’s cost doesn’t flex like that.

Capability Comparison

Cost is only half the decision. Here’s how the two options compare on what the DPO can actually do.

For regulated businesses, the external DPO benefits that count most are breadth and independence. A DPO who has handled ICO correspondence for other fintech and healthtech clients brings that experience to your first incident. An in-house DPO’s strength is presence: they hear about the new project in a meeting, not three weeks later in an email.

Risk Factors for Each Option

In-house

• Key person risk: If your only DPO resigns or goes on long-term leave, the legal duty to have one doesn’t pause. Replacing a specialist can take months.
• Knowledge gaps: One person rarely covers law, IT security and your sector equally well.
• Conflict of interest in smaller organisations: In a small business, the obvious internal candidates are the Head of IT, the COO or the head of HR. All three decide how personal data is used, so they’d be monitoring their own decisions. That’s exactly the conflict Article 38 rules out.

Outsourced

• Response time: An external DPO works within agreed hours. KEWDATA’s service covers UK business hours, with urgent out-of-hours incident support available at extra cost. Decide in advance how a weekend breach reaches the right person.
• Less day-to-day presence: Staff may not think to ask someone outside the building. Regular check-ins and a clear route for questions close most of that gap.
• Onboarding overhead: The first weeks go on learning your systems, data flows and suppliers. That takes time from your team. A provider who already knows your sector shortens it.

Which Businesses Suit Each Option?

Small businesses

Start by checking whether you need a DPO at all, because many small businesses don’t. If you do, an outsourced DPO is the more practical fit. You get expert knowledge without a full salary, and without the conflict problems of handing the role to an existing manager.

Mid-market businesses in regulated sectors

Outsourced or hybrid. One workable model pairs an internal privacy lead, who handles day-to-day questions and records, with an outsourced DPO who provides independent advice, monitoring and board reporting.

Large enterprises with complex processing

An in-house DPO, supported by outsourced advisory. A full-time DPO makes sense once the workload fills the role. Outside specialists can then cover peaks, other jurisdictions, or areas such as AI.

Comparing Your DPO Options?

If an outsourced DPO fits your business, KEWDATA provides a named, CIPP/E-certified DPO, backed by a team with regulator-facing experience from heavily regulated finance. UK and European requirements are covered from one provider, with no long-term lock-in. Your organisation stays responsible for compliance, with an independent adviser reporting to your board.

Explore KEWDATA’s outsourced DPO service