In-house marketing team vs agency: the cost compared

Key takeaways

In-house marketing team vs agency cost is rarely close for a UK SME. A marketing manager and a content executive cost about £84,000 a year fully loaded with tools. Outsourcing execution across social, website care and content typically costs £24,000–£60,000 a year. The strongest model is often one in-house lead directing outsourced delivery.

• In-house team: about £84,000 a year for a manager and an executive with tools.
• Agency: about £24,000–£60,000 a year for outsourced execution.
• In-house team: best for brand ownership, strategy and fast internal access.
• Agency: best for breadth of skills and consistent output.

How does an agency differ from an in-house marketing team?

An in-house marketing team is employed by you and works only on your business. A marketing agency is a provider that plans and delivers marketing for several clients, with specialists you could not justify hiring full-time. The trade-off is focus and internal access against breadth, cost and continuity.

• In-house vs outsourcing: which model is more cost-effective?
• In-house versus agency social media for UK businesses

What does an in-house marketing team cost?

Take a marketing manager on £40,000 and a content executive on £28,000. Using 2026/27 rates, employment costs are about £46,263 and £32,103, or £78,366 together. Add software such as design, scheduling, email and analytics tools plus equipment, about £6,000, and the team costs about £84,400 a year before recruitment and ad spend.

That buys two people's skills. Video, paid media, SEO and web changes often still need outside help.

• What a social media manager costs in the UK

What does an agency cost?

UK social media retainers for most SMEs run about £950–£2,500 a month, and website care with regular changes about £150–£350 a month. Adding content or SEO support, a combined outsourced marketing budget of roughly £2,000–£5,000 a month, £24,000–£60,000 a year, is common for SMEs. Ad spend is separate on both sides.

• Social media agency pricing in the UK
• Website maintenance costs in the UK

When is an in-house marketing team better?

When marketing volume is high and steady enough to keep specialists fully used, when speed of internal access matters more than cost, or when the brand is so specialised that briefing outsiders takes longer than doing the work. Larger SMEs with many campaigns often reach this point.

• When is in-house cheaper than outsourcing?

When is an agency better?

When you need several skills part-time rather than one skill full-time, when output must continue through holidays and staff changes, or when you want to scale activity up and down. For most SMEs, the mix of skills needed is wider than two hires can cover.

• Social Media Marketing for UK businesses

What is the best of both?

One in-house marketing lead who owns strategy, brand and results, directing outsourced delivery for content, social, design and web. The lead keeps knowledge and accountability inside; the providers bring capacity and specialist skills. This usually costs less than a two-person team and delivers more.

• The hybrid model: part in-house, part outsourced
• Should you outsource social media to stay consistent?

What are the risks on each side?

In-house, the risk is a small team stretched across too many skills, and a gap when someone leaves. With an agency, the risk is generic work from a team that does not understand your buyers. Both are managed by clear goals, a named owner inside the business and monthly reporting against those goals.

• Questions to ask a social media agency before signing

How do you brief an agency so it works like your team?

Give the agency what an in-house hire would learn in their first month: who your buyers are, why they choose you, what you sell most profitably, and what a good enquiry looks like. Share access to real customer questions and job photos, agree one monthly goal, and name one person in-house who approves work within 48 hours.

• A one-page social media strategy template you will use

What does this look like in practice?

A pattern we see in UK professional services firms: a marketing executive is hired to do everything, from social to web updates to events, and output stalls. Keeping the executive as the in-house owner and outsourcing content production and website care gives consistent output without a second hire.

Across GBL social media clients, the average reach lift in the first 90 days is +184%.

• See client work

Marketing team vs agency checklist

Use these steps to decide.

• List the marketing skills you need each month.
• Estimate hours per skill.
• Cost the in-house team fully loaded with tools.
• Get agency quotes against the same scope.
• Decide who owns strategy and results in-house.
• Review output and results quarterly.

Next step

Tell us your goals, channels and current team. We will cost an in-house team, an agency and a hybrid side by side in a 30-minute call.