Amazon Advertising Benchmarks 2026: What Your ACOS, CPC, and CTR Should Actually Look Like

Here is the quiet anxiety sitting under almost every Amazon seller's performance review: your ACOS is 29%. Is that good? Your CPC is $1.14. Should it be lower? Your CTR is 0.38%. Is that a problem?

Most sellers are measuring performance against their own history, not against the market. That makes it nearly impossible to distinguish a structural problem from a competitive one, and very easy to over-optimise metrics that are already healthy while ignoring ones that are genuinely lagging.

On May 18, 2026, Amazon changed this dynamic. The platform made its competitive benchmarks reporting generally available across 18 global markets, giving sellers and their ad tools access to standardised peer comparisons by product category for the first time. Combined with fresh third-party benchmark data updated through early 2026, there has never been a better moment to answer the question: what should your numbers actually look like?

This post lays out the 2026 benchmarks for ACOS, CPC, CTR, and conversion rate, breaks them down by product category, and explains what to do if your campaigns are falling short.

The 2026 Amazon advertising baseline

Before getting into category-level nuance, it helps to understand the cross-category averages. These figures represent a broad cross-section of sellers running Sponsored Products campaigns and are compiled from 2026 industry benchmark data and cross-checked against Autron's own managed accounts.

Average ACOS: about 34%. The range for most accounts sits between 25% and 40%. If you are below 28%, you are outperforming the market in ad efficiency. If you are above 40%, something structural needs attention, though a handful of categories (Clothing above all) run higher by nature.

Average CPC: about $1.13. That is up sharply versus 2023, and the trajectory reflects a structural shift: over 70% of Amazon sellers now actively advertise, up from around 40% five years ago, which means more bidders competing for the same placements.

Average CTR: about 0.56%. Top sellers consistently push above 1%. If your CTR is well below 0.4%, the issue is almost always one of three things: poor main image quality, weak title relevance, or keyword-targeting drift where your ad is showing for searches that do not match what you sell.

Average conversion rate: about 10.5%. This is notably high compared to general ecommerce (where the average is around 1.33%), and reflects the high purchase intent of Amazon shoppers. Well-optimised listings with strong reviews typically land in the 10 to 15% range. If your CVR is below 7%, listing quality is usually the culprit before bid strategy.

Benchmarks by category: where you actually stand

The cross-category averages above give you a starting point, but they can mislead in both directions. A 57% ACOS in Clothing is alarming by general standards but roughly in line with what the category demands given high return rates. A 23% ACOS in Food and Grocery might look outstanding until you realise low-price-point products often convert at much higher rates, which compresses ACOS naturally.

The table below breaks down the key metrics by major product category, drawing on compiled 2026 industry data, cross-checked against Autron's own managed accounts.

A few observations worth drawing out from this data:

Health & Household carries the highest CPC ($1.42). Supplements and consumables are among the most crowded auctions on Amazon, with many advertisers bidding on the same high-intent searches. The category still converts well (around 13%), so the high cost per click is sustainable with tight targeting, but broad or auto campaigns bleed fast. Electronics is close behind on cost-per-click while converting lower, which is why electronics rewards careful exact-match targeting on high-intent searches.

Clothing and Apparel carries the highest ACOS at 57%. High return rates inflate effective cost per sale, and conversion is the lowest of any major category because fit uncertainty keeps shoppers from buying. If you are in apparel and running near 57%, you are on benchmark, not underperforming. If you want to push below 45%, the lever is nearly always main image quality and keyword precision.

Food and Grocery produces the lowest ACOS at 23%, driven by high purchase frequency, strong repeat buying behaviour, and low CPCs ($0.56). The catch: price points are low, so absolute profit per click is slim. TACOS (total advertising cost of sales including organic) is the more useful efficiency metric in this category.

Beauty and Pet Supplies share a structural advantage: strong subscription and repeat-purchase conversion rates lift CVR above the cross-category average, making both categories more forgiving on CPC than the headline numbers suggest.

How Amazon's new native benchmarks tool works

Until recently, all of the benchmark data described above came from third-party platforms that aggregate anonymised campaign data across their user bases. On May 18, 2026, Amazon added something more authoritative: native competitive benchmarks, now generally available across 18 markets, built into the Amazon Ads Reporting API.

The data is accessible through two report types. The crossProgramBenchmarks report covers Sponsored Ads (Sponsored Products, Sponsored Brands, Sponsored Display). The dspBenchmarks report covers Amazon DSP. Both sit inside the existing reporting API framework, meaning the same endpoints sellers and their tools already use for campaign data now support benchmark queries by passing specific benchmark parameters.

Eight metrics are available. Four are new-to-brand metrics: percentage of purchases that are new to brand, purchase rate for new-to-brand customers, and cost per purchase for new-to-brand customers. The remaining four are campaign efficiency metrics: click-through rate, cost per click, completion rate for video creatives, and cost per completed view.

Critically, the benchmarks use Amazon's own peer brand matching, not self-reported category tags. This means the comparison group is constructed from advertisers with similar product types and customer purchase patterns, which makes the benchmarks more meaningful than simple category averages.

For sellers using an advertising platform (rather than managing manually), this data should be surfacing inside your dashboard automatically as platforms integrate the API. If it is not yet visible, it is worth asking your platform provider when they plan to incorporate it.

If your metrics are behind: how to close the gap

Knowing you are 8 percentage points above your category ACOS benchmark is a diagnosis, not a solution. Here is where to look first, in order of likely impact.

Keyword-level negatives

The fastest source of ACOS relief in most accounts is not better bids. It is eliminating spend on search terms that click but do not convert. Pull your Search Term Report and filter for terms with more than 10 clicks and a conversion rate below 3%. Add the worst offenders as negatives at the campaign or ad group level. This is a permanent fix, not a temporary bid suppression. Most accounts contain 20 to 40 such terms that account for a disproportionate share of wasted spend.

Match type consolidation

Broad match keywords in competitive categories are increasingly mismatching against Rufus-mediated conversational queries and low-intent browsing terms. In most categories, moving spend toward phrase and exact match reduces CPC volatility and improves the probability that clicks carry genuine purchase intent. A hybrid approach, running exact and phrase in a manual campaign while reserving broad for keyword discovery in a separate auto or broad campaign, gives you control without sacrificing keyword intelligence.

Placement bid modifiers

Placement bids are among the most underused levers in Sponsored Products. Top-of-search placement typically converts 2 to 3 times better than rest-of-search placements, but defaults to the same bid. If your CVR is below benchmark, check whether your spend is concentrated on product detail pages rather than search results. Increasing your top-of-search modifier by 30 to 50% while reducing product page placements often shifts ACOS meaningfully within 2 to 3 weeks.

Bid adjustment cadence

Manual bid management has a fundamental constraint: humans optimise weekly at best, and Amazon's auction conditions shift daily. In the lead-up to Prime Day, when CPCs on top keywords can spike 50 to 100% above baseline, a bid set at the right level on Monday can be 40% too high or 30% too low by Friday. This is the specific problem that AI-powered bid management is built to solve. Systems like Autron monitor campaign performance continuously and adjust bids in response to real-time conversion and cost signals, rather than waiting for a weekly review cycle that always lags the market.

Listing alignment

If your CTR is below 0.35% and your CVR is below 7% simultaneously, the problem is upstream of the campaign. No bid strategy compensates for a main image that does not stop the scroll, or a title that does not surface the primary use case in the first four words. Benchmark your listing against the top three organic results for your most important keyword. If your image looks materially different from what is converting at the top of the page, that is where the fix starts.

Conclusion: use benchmarks as a starting point, not a destination

Amazon's 2026 benchmarks give sellers something that was hard to access before: an honest external reference point for campaign performance. An ACOS of 34% is not inherently good or bad. It depends on your product margin, your category dynamics, and whether you are buying new-to-brand customers efficiently or subsidising repeat sales that would have happened organically.

The sellers who will do best heading into Prime Day are those who understand what their numbers should look like, can identify where they are lagging, and have systems in place to respond quickly when the auction environment shifts.

If you want to see how your campaigns measure up, and then automate the work of closing the gap, try Autron free. Autron's AI manages bids across your Sponsored Products, Sponsored Brands, and Sponsored Display campaigns continuously, so when CPC spikes the week of Prime Day, your ACOS does not spike with it.