Amazon PPC Agency Cost Calculator
Most Amazon PPC agencies and tools charge a percentage of your ad spend — so the more you grow, the more they take. Enter your monthly ad spend and their rate to see the real annual difference versus a flat fee, and the exact spend level where percentage pricing starts working against you. Free, runs in your browser.
How much do Amazon PPC agencies charge?
Most charge a percentage of ad spend — commonly 5–20% — sometimes plus a minimum retainer. A few charge a flat monthly fee. The percentage model means your management cost rises automatically every time you scale your ads, even when the work does not.
Flat fee vs percentage of spend
At low ad spend, a small percentage can be cheaper than a flat fee. But there is a crossover point — above it, the percentage costs more every month and keeps climbing as you grow. This calculator shows exactly where that line is for your numbers.
Why % of ad spend punishes growth
If you double your profitable ad spend, a percentage-based fee doubles too — even though managing the account is not twice the work. You pay more precisely because you succeeded. A flat fee keeps your cost fixed while your sales climb.
Frequently Asked Questions
- What does RedHen charge?
- A flat monthly fee for Amazon PPC management and profit tracking — never a percentage of your ad spend. A large seller pays the same flat fee as a small one.
- Is flat fee always cheaper?
- No. At very low spend a small percentage can be cheaper. The calculator is honest about the crossover point where flat fee wins and percentage pricing starts costing you more.