This is a question that comes up constantly for growing UK businesses, and the honest answer is that it depends — but not on the things most people think it depends on.
The typical framing is cost. “Is it cheaper to hire someone or outsource?” But that’s actually the wrong starting question, because cost is only one part of the picture, and it’s rarely the deciding factor for businesses that get this right.
The better question is: what does your business actually need from marketing, and which model is most likely to deliver that reliably?
Let’s work through it properly…
What In-House Actually Costs
Let’s start here, because the numbers surprise most people.
A mid-level marketing manager in the UK earns between £40,000 and £60,000 in base salary. Add employer National Insurance contributions (currently 13.8% above the secondary threshold), pension contributions, annual leave, sick leave, equipment, software licences, and the recruitment cost of finding the right person — and you’re looking at a real cost somewhere between £55,000 and £75,000 per year for one hire.
And that’s before you reckon with the fact that one person — no matter how talented — cannot be a proper strategist, SEO specialist, copywriter, designer, paid media expert, and data analyst simultaneously. In practice, an in-house marketing manager becomes a generalist who does a bit of everything to a moderate standard. Which is often better than nothing, but rarely good enough to drive serious growth.
To build a genuinely capable in-house team, you need multiple hires — which means the cost comparison shifts dramatically.
What Outsourcing Actually Costs
A full-service outsourced marketing arrangement in the UK typically runs between £1,000 and £5,000+ per month depending on the scope of work. At the mid-range, you’re getting access to a team of specialists — strategists, writers, designers, SEO professionals, paid media managers — rather than a single generalist.
That team brings pre-built processes, established tools (enterprise-grade SEO platforms, design suites, analytics setups), and cross-industry experience from day one. There’s no six-month onboarding ramp. There’s no knowledge gap when someone hands in their notice.
For most small and growing businesses, this represents significantly better value for money than hiring, especially in the earlier stages of growth when marketing needs can shift quickly and flexibility matters.
Where In-House Wins
In-house marketing does have genuine advantages — it’s just worth being clear about when those advantages actually apply.
Brand depth — an internal team lives and breathes your business. Over time, they develop an understanding of your culture, your customers, and your tone of voice that can be hard for an external partner to fully replicate. For businesses where brand voice is extremely specific or sensitive, this continuity has real value.
Agility for internal comms — being physically present and in the room for internal conversations means an in-house marketer can react to things faster in some contexts. A product change, a last-minute campaign shift, a reactive piece of content — these can sometimes move more quickly with someone internal.
Long-term commitment — an in-house hire is entirely focused on your business and nothing else. No competing priorities, no other clients. For some businesses, that single-minded focus is worth paying for.
If you’re a larger business with a complex product, a highly regulated industry, or a need for very deep brand consistency across a large volume of content — a strong in-house team is probably the right foundation.
Where Outsourcing Wins
For small and growing UK businesses specifically, outsourcing tends to win on the metrics that actually matter most.
Specialist depth across disciplines — SEO, paid media, social, email, design, strategy — these are all distinct skill sets that take years to develop properly. An outsourced team brings dedicated experts in each area rather than one person stretched across all of them.
No people risk — one of the most underestimated costs of in-house marketing is attrition. When a key hire leaves, momentum stops. You spend months recruiting, onboarding, and rebuilding. With an outsourced partner, the relationship and the knowledge stays intact.
Scalability — business needs change. You might need a heavy focus on SEO one quarter and a product launch campaign the next. An outsourced team can shift its focus accordingly without you needing to hire, restructure, or make anyone redundant.
Speed to impact — a good outsourced team can be operational within weeks. An in-house hire takes months to recruit, onboard, and become fully productive.
Cost efficiency — for the equivalent capability, outsourcing is almost always less expensive than building an in-house team, once you properly account for the full cost of employment.
The Hybrid Approach
Worth mentioning that the choice isn’t always binary.
A growing number of UK businesses run a hybrid model — keeping brand strategy and senior commercial decisions in-house (often handled by a founder or director) whilst outsourcing execution across channels. This gives you control over the direction without the overhead of a full internal team.
It’s a sensible middle ground, and it tends to work well when there’s a clear owner of marketing internally who can brief and manage an external partner effectively.
How to Actually Decide
A few questions worth sitting with honestly:
What’s your monthly marketing budget? If it’s under £5,000, building an in-house team is unlikely to give you the depth of capability you need. Outsourcing makes more practical sense.
How consistent is your marketing at the moment? If it’s reactive and sporadic — campaigns when someone has time, social posts when someone remembers — an outsourced team with structured delivery will almost certainly move the needle faster than an internal hire who gets pulled in different directions.
How clearly defined is your brand and audience? If you’re still figuring out your positioning, an experienced outsourced strategist can actually help shape that. It doesn’t need to be fully formed before you start.
What does growth actually look like for you? More enquiries? Higher ticket clients? Better local visibility? Being clear on this helps you understand which disciplines you need most — and whether an internal hire or an outsourced team is better placed to deliver on them.
If you’re leaning towards outsourcing — or you want to talk through what the right model looks like for your specific situation — Revv Consulting is worth a conversation.
We work as a dedicated outsourced marketing partner for UK businesses, bringing a full team of specialists under one transparent monthly retainer. Strategy, SEO, paid ads, social media, content, design — handled properly, without the overhead of building a team from scratch.