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Agency vs in-house for Amazon? An honest comparison.

Every growing seller faces the question: build your own team or hire an agency? We're biased – so here's the maths laid out openly, including the cases where in-house is the better choice.

Go through your situation together
IN-HOUSE · 1 E-COMMERCE MANAGER
Gross salary incl. on-costs≈ £55,000
Tool licences≈ £5,000
Training & onboarding≈ £4,000
Workspace & overhead≈ £3,500
Per year≈ £68,000

Plus 6–12 months until that person truly masters Amazon – and a single point of failure if they leave.

ONFIDENCE · WHOLE TEAM
SEO, PPC, content & logistics know-how
Sellercore included – no licence fees
Ready to go from day 1, no onboarding
No single-person failure risk
Per yearA fraction of that

Monthly flat fee + performance-based component – cancellable monthly, no lock-in.

Illustrative benchmarks for the UK, as of 2026. Your actual costs depend on salary level and choice of tools.

Head to head

Eight criteria, point by point.

CRITERION
IN-HOUSE
AGENCY (ONFIDENCE)
Ramp-up time
6–12 months until someone truly masters Amazon
From day 1 with proven processes
Fixed costs
Salary, employer on-costs, holiday, sick leave
Flat fee + performance component, cancellable monthly
Software
Tool licences on top – often £300–1,000/month
Sellercore included, no third-party licences
Breadth of expertise
One person can rarely cover SEO, PPC, content & logistics
A specialist per area in the same team
Failure risk
Illness or resignation brings Amazon to a standstill
Team management, always someone available
Benchmarks
Only knows your own account
Experience from 30,000+ listings & 100+ accounts
Scaling
New marketplace = a new hire
Capacity is there straight away
Control
Full control in-house
You keep the account & data – we work within it
Honestly

When in-house is the better choice.

In-house pays off
· From roughly £10m in Amazon sales· Amazon is your core business, not just one channel· You already have someone with experience
An agency pays off
· You want quick results rather than a learning curve· Amazon is an important but not your only channel· You need several disciplines at once
The middle ground
· We manage it while you build up in parallel· Training for your team instead of ongoing management· Handover as soon as you're ready

We'll tell you if you don't need us, too.

In the first call we work through together what makes sense for your size – even if the answer turns out to be: build it yourself.

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