How do Amazon PPC agencies charge?

Three common models: percentage of ad spend (typically 8-15%), flat monthly retainer ($2k-$8k), or performance-based tied to ACoS or TACoS targets. Percentage-of-spend has a built-in conflict, the agency earns more when you spend more, even if ROAS drops. Flat retainer aligns better but doesn't scale up if your spend grows. Performance models sound clean but the math gets messy fast.

What's a fair management fee?

For a brand spending $20k-$80k/month on Amazon ads, a flat retainer of $3k-$6k is in market. Below $20k spend, most good agencies won't take you on, the economics don't work for either side. Above $100k spend, you should be negotiating either a tiered flat fee or a hybrid that caps the percentage.

When should I hire a PPC agency vs use software?

Software works when you have time, a clear category, and someone in-house who reads Search Term Reports weekly. Hire an agency when ad spend is above $15k/month, your category has aggressive bidders, or your in-house person is also doing five other jobs. The break-even point is usually when bad PPC is costing you more per month than the retainer.

How long until ACoS improves?

A competent agency should show structural changes in 30 days (campaign restructure, negative keyword cleanup, bid rationalisation) and meaningful ACoS movement by day 60-90. If you're four months in and the dashboard looks the same as month one, that's your answer.

What if my agency isn't performing?

Most contracts have a 30-day out clause, check yours. Before firing, ask for an ASIN-level performance breakdown and the last four weeks of Search Term Report actions. If they can't produce either in 48 hours, the work isn't getting done. Document everything before you switch, the next agency will need it.

Amazon PPC Agency — Vetted Specialists for Sponsored Ads & ACoS Reduction

91 vetted agencies · Updated May 2026 · Amazon Ads Verified Partner

An Amazon PPC agency manages Sponsored Products, Sponsored Brands, and Sponsored Display campaigns to lower ACoS while keeping sales velocity intact. The good ones do three things software alone can’t: structure campaigns around your specific category dynamics, react to bid auction shifts in real time, and turn Search Term Reports into weekly action. The bad ones charge a percentage of ad spend and let your campaigns drift on autopilot.

This page covers how to tell them apart. If you’d rather skip the reading, browse vetted PPC agencies we’ve already screened.

What an Amazon PPC agency does (vs PPC software)

Software handles the mechanical parts well. Bid adjustments on a schedule, dayparting, negative keyword harvesting from search term data, basic campaign templates. If your category is stable and your margins are healthy, software plus a few hours a week of human attention will get you 80% of the way.

An agency earns its retainer by doing the things software can’t:

Campaign architecture. Deciding when to split a single-keyword campaign out of a research bucket, when to consolidate, when to launch Sponsored Brands video for a hero ASIN.
Auction reading. Spotting that a competitor just dropped price and is bidding aggressively on your branded terms, then adjusting before you bleed a week of spend.
Cross-channel coordination. Pulling spend back when organic rank is doing the work, pushing it forward during launches or Prime Day ramps.
Translating data into decisions. A 4,000-row Search Term Report is useless until someone with judgement decides what to negate, what to promote, and what to test.

If your in-house team is doing all four well, you don’t need an agency. Most teams aren’t.

Pricing models compared

Here’s how the three common pricing structures actually play out:

Model	Typical Range	How It Works	Watch For
% of ad spend	8-15% of monthly spend	Agency earns a cut of what you spend on ads	Incentive to grow spend, not efficiency
Flat retainer	$2k-$8k/month	Fixed fee regardless of spend	Make sure scope is defined; “unlimited” usually isn’t
Performance-based	Base fee + bonus tied to ACoS/TACoS targets	Targets agreed upfront, bonus paid if hit	Targets get gamed; define the math precisely

The percentage model is the most common and the most conflicted. If you spend $50k/month at 12%, you’re paying $6k. If the agency cuts your wasted spend in half (a good outcome), they earn $3k. They just made themselves poorer by doing their job well. Smart agencies have moved away from this; ones that haven’t usually have a reason.

Flat retainer is cleaner. You pay $4k/month for a defined scope (X campaigns managed, weekly reporting, monthly strategy call), and the agency’s incentive is to keep you happy enough to renew.

Performance-based sounds elegant but breaks down in the details. ACoS targets need a baseline, and baselines get debated. TACoS depends on organic sales the agency doesn’t fully control. Most “performance” deals end up as a flat retainer with a small bonus tacked on.

The 7 questions to ask before signing

Print this and ask every agency you talk to. The answers will sort the serious shops from the ones running a sales pipeline.

Who actually does the work on my account? Names. Not “our team.” If the senior strategist on the pitch call disappears after signing, you’ll be working with a junior who manages 12 other accounts.
What’s your campaign structure philosophy? Single keyword campaigns vs ad group level, exact match isolation, branded campaign separation. They should have a strong opinion and be able to defend it.
How often do you action Search Term Reports, and can I see an example? Weekly is the floor. Ask for a redacted example of last week’s negatives added on a current client.
What’s your reporting cadence at the ASIN level? Account-level dashboards hide problems. ASIN-level reporting surfaces the SKUs that are bleeding.
What’s your process when ACoS spikes unexpectedly? Listen for diagnostic steps, not “we’ll investigate.” Real agencies have a checklist.
What’s the out clause? 30 days is fair. 90 days locks you in while they ramp slowly.
Can I talk to two current clients in my category? They should have references ready. If they hedge, ask why.

What a 90-day engagement should produce

Use this as a checkpoint. If your agency hasn’t delivered against most of these by day 90, the engagement is failing.

Full campaign audit with documented restructure plan in the first 14 days.
Negative keyword cleanup across all campaigns by day 30 (expect hundreds, sometimes thousands of negatives added).
Bid rationalisation pass, every active keyword reviewed against its 60-day performance.
Branded vs non-branded spend separated and reported distinctly.
Sponsored Brands and Sponsored Display tested if not already running.
Measurable ACoS or TACoS movement by day 60-90, with the direction depending on whether you prioritised efficiency or growth.

If you’re at day 75 and the only deliverables are weekly PDF reports nobody reads, you have a reporting agency, not a management agency.

Ready to compare specialists? Browse vetted Amazon PPC agencies in our partner directory.

Red flags in PPC agency reporting

A few patterns that show up in underperforming agency relationships:

Reports that only show winning campaigns. A real report shows the losers too, with a plan for each.
ACoS aggregated at the account level only. This hides catastrophic ASINs behind your hero products.
No mention of impression share or top-of-search metrics. These tell you whether you’re actually competing or just bidding into thin air.
“We’re optimising” with no specifics. Optimising what? Bids on which keywords? Which campaigns were restructured this week?
Missing Search Term Report actions. If the report doesn’t list negatives added and new keywords promoted, the work isn’t happening.

How we vet PPC partners

We screen agencies on five criteria before they’re listed in our partner directory:

Minimum two years of Amazon-specific PPC management. Google Ads experience doesn’t transfer cleanly.
Verifiable case studies with named clients (or NDA-protected references). No anonymous “we grew a brand 400%” claims.
Clear pricing model published or shared on first call. Agencies that won’t quote until they’ve “scoped your needs” usually have something to hide.
ASIN-level reporting as standard, not premium. This is table stakes.
A defined offboarding process. Good agencies plan for the end of the relationship; bad ones lock you in.

We also check that they’re current on Amazon Ads platform changes. Amazon ships new ad types and reporting changes regularly, and the Amazon Ads documentation is the source of truth. Agencies that haven’t updated their playbook in two years stand out fast.

A note on scope: this is research, not a recommendation for your specific account. PPC outcomes depend on category, margin structure, inventory health, and listing quality. An agency can run perfect campaigns on a poorly converting listing and still post bad numbers. If you’re being audited or in active enforcement on any related account issue, talk to a qualified specialist before making changes.

Browse vetted Amazon PPC agencies

We don’t run PPC for you. We screen the agencies that do, so you can skip the cold outreach and the pitch decks.

See the vetted Amazon PPC agency directory →

Looking at the broader picture? Start with the services hub for adjacent specialists (listing optimisation, account management, creative).