A pricing dead zone is a price range where raising an Amazon product's list price lowers gross profit, because Amazon's fee structure isn't smooth — it jumps in steps. Two mechanisms create the steps: FBA fulfillment-fee tier jumps (crossing a size/weight threshold triggers a higher fulfillment-fee bracket) and category referral-fee percentage cliffs (the referral rate itself changes above certain price thresholds in some categories). Inside a dead zone, the marginal revenue from a higher list price is smaller than the marginal fee jump it triggers, so profit falls until price clears the top of the zone.
2026 category dead-zone ranges (per one seller-news source, verify against current Amazon fee schedules before acting):
The non-intuitive part: inside a zone, the profit-maximizing price is the bottom of the zone, not a round number just below it — e.g. in the $10–$11.78 zone, $9.99 outperforms every price up to $11.78, and profit only recovers once price reaches $11.79. Categories can stack multiple dead zones as price rises (clothing has three), so a seller scaling a SKU's price can pass through several distinct traps rather than one.
Apply: before repricing any SKU upward, check it against the current-year dead-zone table for its category; never leave a price sitting inside a zone, and treat the zone's floor as the safe price if you can't clear the ceiling. Relevant when setting prices via Two-Stage Launch Pricing Strategy or Holiday/Event Pricing Strategy, and complements fulfillment-fee-tier thinking in Package Size vs. Shipping Cost Tradeoff and Per-Unit Shipping Cost Gauge (~$2/Unit Heuristic); a repricing error here is a hidden contributor to Amazon Profit Red Flags.