Amazon PPC agencies typically charge either a flat monthly retainer, a percentage of ad spend (usually 10-20%), or a base fee plus performance component. Retainers across the industry commonly run from around $1,500/month for single-marketplace, single-brand accounts up to $10,000+/month for multi-marketplace catalogs. AmzCentric prices on scope rather than a percentage of spend, so your fee doesn’t automatically rise the moment you scale.

For most brands with an established listing, yes — but the honest answer is that it depends on your margin. Amazon PPC is worth it when your contribution margin can absorb the cost per sale and when paid traffic is feeding organic rank rather than replacing it. It stops being worth it when you are funding ads on a listing that does not convert, or when ad spend is propping up revenue that would collapse the moment you paused. Before scaling spend, fix conversion. Otherwise you are paying to send traffic to a leak.

ACOS on Amazon typically falls between 15% to 30% for most product categories, but the right target depends entirely on your profit margins, product lifecycle stage, and growth goals. New product launches may run a higher ACOS of 40% to 60% to build ranking velocity, while established products should aim for 15% to 25%. What matters more than ACOS alone is TACoS (Total Advertising Cost of Sales), which measures ad spend against total revenue including organic sales.

Lowering Amazon ACOS starts with eliminating wasted spend through negative keyword management, then optimizing bids at the search term level based on actual conversion data. The most impactful moves are harvesting converting search terms from auto campaigns into exact match manual campaigns, cutting spend on high-impression low-conversion terms, and aligning your PPC strategy with listing optimization so higher conversion rates naturally reduce your cost per sale.

You need both working together, not one or the other. Amazon PPC drives immediate visibility and sales velocity, which in turn signals to Amazon’s algorithm that your product deserves higher organic ranking. The best approach is using PPC strategically to accelerate organic ranking gains, then gradually reducing ad dependency as organic sales compound. Our Ad Care service is specifically designed to make PPC support organic growth rather than replace it.

Automatic campaigns let Amazon choose which search terms to target based on your listing content. Manual campaigns let you pick keywords and match types yourself. In practice you need both: automatic campaigns act as a discovery engine that surfaces converting search terms you had not thought of, and those terms then get harvested into manual exact-match campaigns where you control bids precisely. Running only automatic wastes spend on irrelevant terms. Running only manual means you never discover new demand.

Scaling brands need a layered campaign structure, Sponsored Products for keyword-level ranking and conversion, Sponsored Brands for category visibility and brand awareness, and Sponsored Display for retargeting and competitor conquesting. The key is structuring campaigns so that each type reinforces the others rather than competing for the same traffic. We also use search query report analysis to continuously shift budget toward the highest-converting terms.

Most Amazon brands should allocate 10% to 15% of their total Amazon revenue toward advertising as a starting benchmark. For brands in the $50K to $500K monthly revenue range, that typically translates to $5K to $75K in monthly ad spend. However, the right budget depends on your category competitiveness, margin structure, and whether you’re in a launch phase versus a scaling phase. We right-size budgets based on profitability targets, not arbitrary spend levels.

Amazon PPC targets shoppers who are already in buying mode, so intent is higher and the funnel is shorter — there is no separate landing page, the ad sends traffic straight to your product listing. Google Ads reaches people much earlier in the journey, often while they are still researching. The other structural difference is that Amazon PPC directly influences your organic ranking through sales velocity, which has no real equivalent in Google Ads. Practically, this means Amazon PPC performance is inseparable from listing quality in a way Google campaigns generally are not.

The most common ACOS killers are running auto campaigns without regular search term harvesting, bidding on broad match keywords without enough negative keyword management, not aligning ad campaigns with listing optimization, keeping unprofitable campaigns running too long without restructuring, and treating ACOS as the only metric while ignoring TACoS and organic rank impact. Most brands we audit are wasting 30% to 40% of their ad spend on one or more of these issues.

Look for an agency that shows you actual search term level data in their reporting, not just top-line ACOS numbers. Ask whether they integrate PPC with SEO strategy or treat them separately. Check if they have experience in your specific product category and marketplace. Ask for case studies with real revenue and profitability numbers, not just ad metrics. And make sure they report on TACoS and organic rank impact, not just advertising metrics in isolation.