Why is Amazon PPC so expensive?
Amazon PPC has become more expensive because the number of sellers competing for the same keyword placements has grown significantly, and the auction-based pricing model means more competition directly raises the cost per click. High CPC is not inevitable, but it requires deliberate keyword selection and match type discipline to control. Amazon PPC uses an auction system. Every time a shopper searches a keyword, Amazon runs an instant auction among all eligible advertisers bidding on that term. The seller with the highest relevant bid wins the placement and pays just above the second-highest bid. When more sellers enter the auction, the competition for each placement intensifies and the auction clearing price rises. Amazon opened its advertising platform to a much larger seller population over the past several years, and global supply chains made it easier for new sellers to launch and advertise quickly. More advertisers bidding on the same finite number of placements is the primary structural reason CPCs have risen across most categories. Category competition is the biggest driver. Categories like health supplements, electronics accessories, home organisation and kitchen appliances attract large numbers of professional sellers who invest heavily in advertising. High advertiser density in these categories drives CPCs significantly above the Amazon average. Seasonality amplifies cost at peak periods. During Prime Day, Black Friday and Q4, sellers raise bids to capture higher search traffic, pushing CPC up temporarily across many categories. Sellers who have not adjusted their target ACoS for peak periods often find profitability squeezed despite higher sales volume. Keyword match type affects average CPC. Broad match keywords generate competing bids from a wider pool of advertisers and tend to produce higher average CPCs than exact match keywords targeting the same term. Broad match also attracts irrelevant clicks, which inflates the cost-per-sale further. Ad placement affects the price. Top of search placements consistently command higher CPCs than product page placements or rest of search because they attract more clicks. If you use placement multipliers to boost top-of-search bids, your average CPC rises accordingly. CPC varies substantially by category. Categories where many professional brands compete alongside large numbers of private label sellers consistently carry the highest CPCs. These include nutritional supplements, protein and sports nutrition, consumer electronics accessories, baby products and premium kitchen goods. Niche subcategories within competitive markets often offer lower CPC opportunities. A seller competing for 'protein powder' faces extremely high CPC, but a seller targeting 'pea protein powder unflavoured 1kg' is working in a smaller auction with fewer bidders and typically pays less per click for more relevant traffic. The most impactful lever is improving your listing's conversion rate. Cost per sale = CPC ÷ Conversion Rate. If your CPC is £1.50 and your conversion rate is 8%, your cost per sale is £18.75. If you improve conversion rate to 12% without changing CPC, cost per sale drops to £12.50. Better images, clearer bullet points and competitive pricing all reduce cost per sale without touching your bids. Shifting budget towards long-tail and exact match keywords reduces exposure to the highest-competition auctions. Broad, high-volume keywords attract the most bidders and highest CPCs. Specific, multi-word keywords are contested by fewer sellers and often convert at a higher rate because the shopper's intent is more defined. Adding negative keywords regularly prevents spend on irrelevant searches that drive up your average CPC without producing sales. Review your search term report weekly and remove terms that generate clicks without orders.
Amazon PPC costs rise as more sellers compete for placements. Learn what drives high CPC, which categories are priciest and how to lower your cost per sale.