Percentage of ad spend vs flat fee: how Amazon PPC agencies charge in 2026
Amazon PPC agencies charge in three main ways: a percentage of your ad spend, a flat monthly fee, or a hybrid of a base fee and a variable part. This guide shows what published price lists would charge at four levels of ad spend, and what each model rewards.
The short answer
A percentage of ad spend keeps the fee in step with the size of the account, and it also rises when your spend rises, whether or not the extra spend pays back. A flat fee is predictable and gives the agency no reason to raise your budget, though it may be repriced as the account grows. A hybrid sits between the two. Whichever model you are offered, ask for the rule that decides when your ad spend goes up, and for your goals in writing.
The models in plain words
A percentage of ad spend is a share of what you invest in Amazon ads each month, almost always with a monthly minimum. Published examples include 7% of ad spend or a minimum of $2,500 a month, and a tiered schedule of $975 flat up to $5,000 of spend, then the higher of $975 or 15% up to $30,000, the higher of $4,500 or 12% up to $100,000, and the higher of $12,000 or 10% above that.
A flat monthly fee is one agreed sum for an agreed scope. Agencies that charge this way rarely publish the figure, and one says in its 2026 pricing guide that it sets the fee after a call and takes no percentage of ad spend.
A hybrid adds a variable part to a base fee. The variable part may follow ad spend or sales, and the same guide cites a published example of $2,000 a month plus 3% of Amazon sales above $10,000 a month. Software is often priced in a similar way: one provider publishes custom pricing plus 3% of ad spend above $10,000 on its larger plans.
What each would charge at four levels of ad spend
| Monthly ad spend | Tiered percentage schedule (large digital agency) | 7% with a $2,500 minimum (specialist agency) | Software, variable part only (3% above $10,000) |
|---|---|---|---|
| $20,000 | $3,000 | $2,500 | $300, plus the plan's base price |
| $50,000 | $6,000 | $3,500 | $1,200, plus the plan's base price |
| $100,000 | $12,000 | $7,000 | $2,700, plus the plan's base price |
| $150,000 | $15,000 | $10,500 | $4,200, plus the plan's base price |
The table shows what each fee is, and it says nothing about what each fee returns. A higher fee that brings back more profit is the better purchase, which is why the questions below matter more than the model.
What each model rewards
A percentage of ad spend has a fair logic: a larger account usually takes more work, and a small brand pays less while it grows. Its weakness is that the agency earns more when you invest more, so the advice to raise a budget and the agency's income point the same way. A written rule that ties every increase to an agreed ROAS removes most of that tension.
A flat fee separates the agency's income from your budget, so advice on spend can be taken at face value. It is also easy to plan for in a seasonal business, because the fee does not jump in the fourth quarter when spend does. Its weakness is scope: a flat fee covers what was agreed, and it is likely to be repriced when the account grows or new marketplaces are added.
A hybrid that follows sales ties part of the fee to an outcome you care about. It also pays the agency for sales that did not come from ads, so it is worth agreeing how those sales will be counted.
Questions that matter more than the model
- What rule decides when my ad spend goes up, and will you put it in writing?
- Which sales and ROAS goals will you commit to, and by which date?
- What does the fee include, such as Sponsored Products, Sponsored Brands, Sponsored Display and the creative for them?
- Is there a setup fee or a minimum term, and what notice do I give to leave?
- What will the fee be in my busiest month, and in my quietest?
How Seller Performance prices the first 90 days
Your first 90 days have one fixed price, which depends on your ad spend. We give it to you in dollars and in writing before you decide, and it does not rise if your spend rises during the 90 days. You may prepay the 90 days, which brings the guarantee and waives the setup fee, or pay in three monthly instalments, each before its month begins.
We agree your sales and ROAS goals for day 90 from your own account, and you approve them in writing before you pay. We raise your ad spend only when it is meeting the ROAS goal we agreed.
A home decor brand in the United States had total sales from August to October 2026 that were 57% higher than in the same months of 2025, and units sold that were 53% higher. September and October are its Halloween season, which is why the comparison is with the year before.
An eight-figure supplement brand opened in Sweden in June 2026. Comparing its first two months with its latest two, ROAS rose from 2.33 to 2.74 while ad spend rose by 15%, and total sales rose by 45%.
If you prepay the 90 days and we miss the goals we agreed, we keep working for free until we hit them. The ad account stays yours. After the 90 days, you may continue month to month and leave with 30 days' written notice.
You give us access on the first day, and nothing else is asked of you afterward. We plan your first improvement for the first week. You receive a short note twice a week and a summary every Friday of what changed, what it earned and what comes next, and none of it needs a reply.
Should you wish to put these questions to us, the first step is a free 15-minute review at a time in the next three days. You share no access to your account beforehand.
Sources
- Pricing, Clear Ads, pricing page. A published percentage of ad spend: 7% of ad spend or a minimum of $2,500 a month.
- PPC pricing plans for Amazon, WebFX, pricing page. A published tiered schedule: $975 flat up to $5,000 of ad spend, then the higher of a minimum or 15%, 12% and 10% of ad spend as spend rises.
- How much does an Amazon PPC agency cost in 2026?, PPC Jumpstart, updated 9 November 2026. An agency's own pricing guide. It describes flat monthly fees, percentages of ad spend and hybrids, and cites a published hybrid of $2,000 a month plus 3% of Amazon sales above $10,000 a month.
- Pricing, Teikametrics, pricing page. A published software plan: $149 a month billed yearly or $179 billed monthly up to $10,000 of ad spend, and custom pricing plus 3% of ad spend above $10,000 on larger plans.
- What is return on ad spend? How to calculate ROAS, Amazon Ads. Amazon's definition and formula for ROAS, and its note that ROAS and ACOS measure the same results.