# How to Lower Your Amazon ACoS: 7 Fixes

URL: https://aiadking.com/guides/lower-acos
Updated: 2026-09-03

How to lower your Amazon ACoS when it is too high: seven action-first fixes, from negative-keyword harvesting to dayparting to listing copy.

The fastest ACoS reduction comes from negative-keyword harvesting plus broad-match bid cuts plus dayparting. AIAdKing automates all three daily for $29/month with a 3-day free trial — or you can do them manually using the seven steps below.

## Steps

1. Harvest negative keywords: Pull your last 60 days of search-term reports. Add as negatives any term with 10+ clicks and zero conversions, or with spend more than 2x your target CPA.
2. Cut bids on losing match types: Broad match typically has highest ACoS. Cut broad bids 30%, leave exact untouched, monitor 7 days.
3. Enable dayparting: Bid only when your buyers convert. Most categories convert poorly between 2am and 6am local time. Dial bids down then.
4. Rewrite the listing: High ACoS often signals poor listing-to-search-term match. Rewrite title and bullets so the keywords driving spend actually match the buyer intent.
5. Cap underperforming campaign budgets: Cap any campaign with >40% ACoS at 50% of its current daily budget while you diagnose.
6. Move spend to TOS placement: Top-of-search placements typically convert 2-3x better. Increase top-of-search bid adjustment by 30%, decrease rest-of-search by 20%.
7. Audit weekly with AI narrative: Read the weekly AI narrative on ad spend, ASIN-level ACoS, and where the money is leaking.

## FAQ

Q: What is a good Amazon ACoS in 2026?
A: It depends on category, margin, and goal. Mature, established ASINs typically aim for ACoS below 25%. Launch campaigns can run at 50–80% ACoS intentionally to drive ranking. There is no universal target — only a target relative to your margin.

Q: Why is my Amazon ACoS suddenly high?
A: The usual causes: a new competitor entered the auction, your conversion rate dropped (often from a stockout, price change, or review hit), Amazon shifted traffic to broader search terms, or you added new keywords that match too broadly.

Q: Will AI ads automation lower my ACoS?
A: It reallocates spend rather than blindly cutting — moving budget away from wasted search terms toward converting ones, and trimming bids on losers. Many sellers target a 10–20% improvement, but the bigger, more reliable win is usually the time saved.