Quick answer
Amazon PPC is a pay-per-click ad system where sellers bid for placement on search results and product pages. To lower ACoS, run Sponsored Products, Brands, and Display campaigns, set target bids near your break-even, add negative keywords weekly, and shift budget to terms that convert. Most sellers reach a healthy 15 to 25 percent ACoS this way.
Key stats
- Sponsored Products typically account for 70 to 80 percent of total Amazon ad spend.
- Pruning negative keywords can cut 15 to 30 percent of wasted ad spend within the first month.
- Well-optimized accounts often settle ACoS into the 15 to 25 percent range within 60 to 90 days.
What is Amazon PPC and how does it work?
Amazon PPC, or pay-per-click advertising, lets sellers bid for ad placements across Amazon search results and product detail pages. You only pay when a shopper clicks your ad, not when it shows. Each click costs an amount up to your maximum bid, set through Amazon's second-price auction.
The system rewards relevance. Amazon weighs your bid alongside your listing's conversion history and keyword match, so a well-optimized listing with a moderate bid often beats a weak listing with a high bid. That means PPC and listing quality work together. Strong images, titles, and reviews lower your cost per click and raise your ad rank at the same time.
Which Amazon ad types should you run?
Amazon offers three core ad formats, and most sellers benefit from running all three together. Each one reaches shoppers at a different stage, so layering them captures demand across the funnel rather than competing for the same click.
Start with Sponsored Products since they drive the bulk of ad sales for most accounts, then add Sponsored Brands and Sponsored Display as your budget and catalog grow.
- Sponsored Products: keyword and product-targeted ads that appear in search results and on product pages. They typically account for 70 to 80 percent of ad spend and convert the highest.
- Sponsored Brands: banner ads with your logo and up to three products, shown at the top of search. Best for brand-registered sellers building awareness.
- Sponsored Display: retargeting and audience ads that follow shoppers on and off Amazon. Strong for winning back visitors who viewed but did not buy.
What is the difference between ACoS and TACoS?
ACoS, or Advertising Cost of Sale, is ad spend divided by ad revenue. If you spend 200 dollars on ads that generate 1,000 dollars in ad sales, your ACoS is 20 percent. It measures the efficiency of your ad campaigns in isolation.
TACoS, or Total Advertising Cost of Sale, divides ad spend by total revenue, including organic sales. A falling TACoS over time signals that your ads are lifting organic rank, so each advertising dollar is doing more work. Watch ACoS to manage campaigns day to day, and watch TACoS to judge the long-term health of your brand.
- ACoS = ad spend / ad sales. Use it to tune bids and prune wasteful keywords.
- TACoS = ad spend / total sales. Use it to see whether ads are growing your organic flywheel.
- A TACoS trending down while sales rise is the clearest sign of healthy, profitable scaling.
How do you set bids to lower ACoS?
Start by finding your break-even ACoS, which equals your profit margin before ad spend. If you keep 30 percent of each sale, then a 30 percent ACoS means you break even on advertised orders. Set your target ACoS below that number to stay profitable, often around 20 percent for established products.
Use Amazon's dynamic bidding wisely. Set bids to down-only when you want to protect margin, since Amazon lowers bids when a conversion looks unlikely. Adjust individual keyword bids based on data, raising bids on terms below your target ACoS and cutting bids on terms that overspend. Review and adjust bids every 7 to 14 days so changes have enough clicks to read clearly.
Why do negative keywords matter so much?
Negative keywords stop your ads from showing on searches that waste money. Without them, broad and auto campaigns spread spend across irrelevant terms that rarely convert, quietly inflating your ACoS. Adding negatives is the single fastest way most sellers cut wasted spend.
Run a search term report every week and look for terms with many clicks but no sales. Any term with 10 or more clicks and zero orders is a strong candidate to add as a negative exact or negative phrase. Sellers who prune aggressively often cut 15 to 30 percent of wasted spend within the first month, money that flows straight back into profit or better-converting keywords.
How do you build a campaign structure that scales?
A clean structure makes optimization possible. The proven approach is a research-and-harvest model. Run an auto campaign and a broad-match campaign to discover which search terms convert, then harvest those winning terms into a tightly controlled exact-match campaign where you set precise bids.
Separate your top products into their own campaigns so budgets do not compete, and group keywords by intent rather than dumping them together. This way you can scale spend on proven exact-match terms while your discovery campaigns keep feeding new keywords. Most accounts see steady improvement within 60 to 90 days of running this loop, with ACoS settling into the 15 to 25 percent range as data compounds.
Frequently asked questions
What is a good ACoS on Amazon?+
A good ACoS sits below your break-even point, which equals your profit margin. Most established sellers target 15 to 25 percent. Lower is not always better, since very low ACoS can mean you are underspending and missing profitable sales.
How much should I budget for Amazon PPC?+
Many sellers start with 10 to 15 percent of expected revenue, then adjust by results. New product launches often run higher to build rank and reviews, while mature products can scale spend back once organic sales grow and TACoS falls.
How long until Amazon PPC works?+
Expect 2 to 4 weeks to gather meaningful click and conversion data, and 60 to 90 days to optimize bids, harvest keywords, and add negatives. PPC rewards patience, since the system needs volume before its performance signals become reliable.
Should I use automatic or manual campaigns?+
Use both. Automatic campaigns discover converting search terms with little setup, and manual campaigns let you control bids on proven keywords. The winning workflow harvests top terms from auto campaigns into exact-match manual campaigns over time.
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