Amazon advertising has become more competitive, data-driven and complex in 2026. Brands can no longer rely on simply launching Sponsored Products campaigns, choosing a few keywords and increasing budgets when sales slow down. Effective Amazon advertising requires continuous campaign optimisation, keyword research, bid management, search-term analysis, budget allocation and performance tracking.

That leaves many sellers with an important question: Should you hire an Amazon advertising agency or build an Amazon in-house advertising team?

At first glance, hiring an employee can appear cheaper than paying an agency every month. However, the real cost goes far beyond an employee's salary. Recruitment, benefits, software, training, management time and the need for additional specialists can quickly increase the total investment.

For many growing brands, an experienced Amazon advertising agency can provide access to a broader skill set at a lower overall cost.

What Does an Amazon Advertising Agency Actually Do?

An Amazon advertising agency manages the advertising function on behalf of your brand. Depending on the agency, this can include campaign creation, keyword research, bid optimisation, budget management, search-term analysis, placement optimisation and ongoing performance reporting.

The biggest advantage is access to a team rather than a single employee.

A specialist agency may have PPC managers, account strategists, analysts and Amazon marketplace specialists working together. This means your campaigns can be reviewed from multiple perspectives instead of depending entirely on one person's knowledge.

For example, an agency can identify when high ad spend is coming from search terms that generate clicks but little or no sales. It can then adjust bids, add negative keywords, restructure campaigns and move budget towards better-performing opportunities.

That level of continuous optimisation is important because wasted advertising spend can be much more expensive than the management fee itself.

What Does an In-House Amazon Advertising Team Cost?

An Amazon in-house advertising team can provide direct control and close integration with your wider business. However, building a capable team involves more than hiring one PPC executive.

A growing Amazon brand may eventually need:

• An Amazon PPC specialist

• An Amazon advertising strategist

• A marketplace or account manager

• A data or performance analyst

• Listing and catalogue support

• Creative support for advertising assets

• Additional staff as the catalogue and advertising budget grow

Even if you start with one employee, that person may need access to specialist software, training and external expertise.

Recent 2026 cost comparisons show why the headline salary can be misleading. Some market estimates put a fully loaded in-house Amazon team at well over $150,000 annually, while agency engagements can often fall considerably below that depending on scope and brand size.

The exact cost varies by country, experience level, advertising spend and the number of services required, but the principle remains the same: compare total operating cost, not just salary.

Amazon Advertising Agency vs In-House Team: Cost Comparison

This is why comparing an agency retainer against one employee's salary does not provide a complete picture.

The Hidden Costs of an In-House Team

Salary is only one part of the equation.

Suppose you hire an experienced PPC specialist. You may still need to pay for recruitment, onboarding, software subscriptions, training and management. If that employee leaves, you also face the cost and disruption of finding a replacement.

There is another hidden cost: bandwidth.

One employee can only analyse so many campaigns, products and search terms each day. As your Amazon catalogue and advertising budget grow, the workload grows with them.

An agency, by contrast, can allocate resources according to the needs of the account.

The Role of Amazon PPC Software

Technology can make both models more efficient, but software does not completely replace strategy.

For example, SellerQI continuously diagnoses Amazon accounts and identifies issues across PPC, listings, account health, reimbursements and keywords. Its PPC waste finder can highlight zero-sale search terms, high ACoS campaigns and areas where advertising spend may be inefficient. 

This can be particularly useful for an agency because it helps its specialists identify issues that require attention rather than spending hours manually searching through reports.

BidBison can also be part of a PPC management workflow, particularly where automated or software-assisted advertising management is required. Its positioning is specifically around Amazon PPC software that runs ads.

The important point is that tools should support decision-making rather than become a substitute for an advertising strategy.

Why Expertise Matters More as Ad Spend Increases

When an Amazon brand spends a few thousand dollars per month on advertising, inefficient bids can already affect profitability. At higher spending levels, small optimisation errors can become significantly more expensive.

Imagine a brand spending $50,000 every month on Amazon advertising.

A small percentage of wasted spend can represent thousands of dollars that could have been allocated to profitable campaigns.

An experienced Amazon advertising agency can continuously review:

• ACoS and ROAS

• Search-term performance

• Keyword-level profitability

• Campaign structure

• Match types

• Bid levels

• Placement performance

• Budget allocation

• Product-level advertising performance

• New keyword opportunities

• Negative keywords

• Competitor targeting

The value isn't simply in operating the advertising dashboard. It comes from knowing what the data means and what action should follow.

Amazon Ads Services Can Scale With Your Business

One of the strongest advantages of outsourcing is flexibility.

An in-house team may be perfectly suitable when a brand has a large catalogue, substantial advertising spend and enough revenue to support multiple specialists.

But a smaller or growing brand may not need several full-time employees.

With professional Amazon ads services, you can access specialist support without immediately building an entire department.

As your advertising requirements change, the scope of support can also change.

This is particularly useful for brands entering new Amazon marketplaces, launching new products or preparing for seasonal sales periods.

Instead of hiring additional employees for temporary workload increases, an agency can usually allocate additional resources when required.

What About Amazon Reimbursements and Lost Revenue?

Advertising efficiency is only one part of Amazon profitability.

Brands can also lose money through FBA inventory discrepancies, fee errors, return issues and other reimbursement opportunities.

This is where a tool such as Refunzo can complement an Amazon management strategy by helping identify potential Amazon reimbursement opportunities. Rather than treating advertising as an isolated activity, brands should look at the wider profitability of their Amazon operation.

Similarly, SellerQI includes reimbursement recovery alongside PPC, listing and account monitoring, allowing brands to identify different sources of lost revenue within one account-monitoring workflow. 

This broader view matters because reducing unnecessary ad spend is only one way to improve Amazon profitability.

When Does an In-House Team Make More Sense?

An in-house team isn't always the wrong choice.

For larger Amazon businesses, having dedicated internal specialists can make sense when the brand has:

• A large product catalogue

• High and consistent advertising spend

• Multiple Amazon marketplaces

• Complex product launches

• Dedicated marketplace management

• Sufficient budget for multiple specialists

• A need for direct daily control

Some 2026 industry analyses suggest that larger brands, particularly those with significant Amazon revenue, may benefit from a hybrid model combining internal expertise with specialist agency support.

For example, an internal Amazon manager could oversee the overall marketplace strategy while an external specialist handles advanced PPC, international expansion or specific advertising projects.

When Is an Amazon Advertising Agency the Better Choice?

For many small and mid-sized brands, an agency can offer a more practical starting point.

An Amazon advertising agency can make sense if you:

• Don't have an experienced PPC specialist internally

• Want to avoid recruitment costs

• Need immediate expertise

• Want access to multiple specialists

• Need help managing increasing ad spend

• Want regular campaign optimisation

• Are launching products on Amazon

• Are expanding into new marketplaces

• Need flexibility as your business grows

Instead of paying several employees to create an entire Amazon advertising department, you can access a team that already works within the Amazon ecosystem.

Agency vs In-House: What's Actually Cheaper in 2026?

The answer depends on the size and complexity of your business.

For a small or mid-sized brand, hiring one employee may appear cheaper when you compare only monthly salary with an agency fee. Once you include recruitment, benefits, software, training, management time, holiday cover and specialist requirements, the difference can change significantly.

For larger brands, the calculation becomes more balanced.

An established company with substantial Amazon revenue may benefit from an internal team because the additional cost can be justified by the need for dedicated resources.

However, even large brands don't necessarily have to choose one model exclusively. A hybrid structure can provide internal control while bringing in external specialists where advanced expertise is needed.

The Bottom Line

The cheapest option isn't necessarily the one with the lowest monthly price.

The better question is:

Which model gives your brand the highest return for the total amount you invest?

An in-house team provides control and dedicated resources, but it comes with salaries, recruitment, training, software and management responsibilities.

An Amazon advertising agency provides access to specialised expertise, established processes, technology and a broader team without requiring you to build the entire department yourself.

For growing Amazon brands, that flexibility can make agency support the more cost-effective option.

With the right combination of strategy, Amazon ads services, technology and continuous optimisation, brands can focus their internal resources on growth while specialists handle the complexity of Amazon advertising.

eStore Factory helps Amazon sellers manage and optimise their marketplace advertising with a specialist approach focused on performance, efficiency and sustainable growth.

FAQs

1. Is an Amazon advertising agency cheaper than an in-house team?

An Amazon advertising agency can be more cost-effective for small and growing sellers because businesses avoid recruitment, salaries, employee benefits, training and additional software costs.

2. What are the main costs of an Amazon in-house advertising team?

The main costs include employee salaries, recruitment, benefits, training, software, management time and hiring additional specialists as the Amazon advertising operation grows.

3. What services does an Amazon advertising agency provide?

An agency may provide campaign creation, keyword research, bid optimisation, budget management, search-term analysis, campaign restructuring, performance tracking and ongoing Amazon PPC optimisation.

4. When should a business hire an Amazon advertising agency?

An agency can be a good choice when a business lacks internal PPC expertise, wants to scale advertising, is launching new products or needs professional campaign management without building a full-time team.

5. Is an Amazon in-house advertising team better for large brands?

It can be. Large brands with substantial advertising budgets, extensive product catalogues and dedicated Amazon operations may benefit from having internal specialists who work closely with the wider business.