When is in-house cheaper than outsourcing?

Key takeaways

In-house is cheaper than outsourcing when a role is fully used, on core or judgement-heavy work, at a salary close to the outsourced rate once loaded. It is also cheaper for very small volumes, where setup and management outweigh savings. For repeatable work that needs cover or varies in volume, outsourcing is usually cheaper.

• Utilisation above 90% makes in-house hard to beat.
• Under 5 hours a week, setup often outweighs the saving.
• Core, judgement-heavy work is cheaper done right in-house.
• Onshore UK providers at £20–£35 per hour rarely beat a loaded junior hire.

What makes in-house cheaper?

Three conditions make in-house cheaper: high utilisation, low loaded cost relative to the outsourced rate, and work that would need heavy management if outsourced. When all three are true, the provider's margin and your oversight time outweigh anything the provider saves you.

• In-house vs outsourcing: which model is more cost-effective?

At what utilisation does in-house win?

Utilisation is the share of paid hours spent on productive work. A £25,000 hire costs about £16.42 per worked hour; at 90% utilisation that is about £18.24 per productive hour, close to many outsourced rates. At 60% it is about £27.37, and outsourcing is clearly cheaper.

• Staff utilisation rate: the cost of paid idle time

Is in-house cheaper for small volumes?

Often, yes. If a task takes 2 to 3 hours a week and someone with spare time already does it well, the saving from outsourcing is small, and setup, documentation and review time may never pay back. Group small tasks together until there is enough volume to hand over.

• The outsourcing break-even point: when it pays

Which roles are usually cheaper in-house?

Roles that combine judgement, relationships and deep context are usually cheaper in-house, because outsourcing them needs extensive documentation and oversight. So are roles that must be on site.

• Account management and key client relationships.
• Pricing, estimating and commercial decisions.
• Product ownership and strategy.
• On-site roles: reception at a busy site, warehouse, field work.
• Senior specialists whose knowledge is the product.

• Core vs non-core activities: what to keep in-house

When does onshore outsourcing cost more than in-house?

Onshore UK providers typically charge an indicative £20–£35 per hour. A fully used junior UK hire at £25,000 to £30,000 costs about £16–£20 per worked hour, plus overheads. For steady, full-time volumes, onshore outsourcing is often more expensive than a well-used hire; it earns its place on cover, skills and flexibility.

• Onshore, nearshore or offshore outsourcing?

Can in-house become cheaper over time?

Yes. As volume grows to the point where a dedicated team is fully used, bringing work in-house can become cheaper, especially for specialist functions. Review the numbers each year, and keep processes documented so either move is possible.

• Insourcing vs outsourcing: when to bring work back

How do you test whether in-house is cheaper?

Run the comparison twice. First with realistic figures: loaded in-house cost, measured utilisation and a real outsourced quote including your oversight time. Then with assumptions that favour in-house: utilisation 10 points higher and the outsourced rate at the top of its range. If in-house wins both times, keep the work in-house.

• In-house vs outsourcing cost calculator: a worked template

What does this look like in practice?

A pattern we see in UK e-commerce brands: customer email is outsourced because it varies with the season and needs weekend cover, while product content stays in-house because it is steady, full-time and depends on product knowledge. Each function sits where it is cheaper.

• See client work
• BPO Solutions for UK businesses

In-house cost check

Keep work in-house if most of these are true.

• The role is used at 90% or more of paid hours.
• The work is core or needs deep context.
• Someone must be physically present.
• Volume is steady all year.
• The task is under 5 hours a week and done well today.

Next step

We will cost your role in-house and outsourced in a 30-minute call, and tell you plainly if in-house is cheaper.