Amazon FBA Fee Changes in 2026: Calculate Your SKU-Level Impact

What the announcements establish

Amazon’s annual US announcement described an average $0.08 per-unit FBA increase, with changes generally effective January 15, 2026 unless otherwise specified. Amazon annual fee announcement

The subsequent surcharge began April 17, 2026 for FBA in the US and Canada and Remote Fulfillment from the US into Canada, Mexico and Brazil. Its base is the fulfillment fee. Buy with Prime in the US and Multi-Channel Fulfillment in the US and Canada had a separate May 2 start. Amazon describes the surcharge as temporary and subject to evaluation, so it should not be presented as a permanent price commitment. Amazon surcharge announcement

Sources checked September 5, 2026. This article focuses on the US FBA calculation; it is not a worldwide rate table.

Build a fee bridge for each product

Record the prior actual fulfillment charge, the current charge or estimate, and the expected number of units in the comparison period. Keep packaging dimensions, shipping weight, category and selling price with those records. Comparing two different package configurations can make a fee change look larger or smaller than it is.

Use this worksheet:

Amazon says its Revenue Calculator and fee-preview reports already reflect the surcharge. Do not multiply an inclusive current estimate by 1.035 again. Updated tools notice

Worked example: separate the components

Assume, solely for illustration, that a SKU previously cost $5.00 to fulfill and its new base before surcharge is $5.08. These are assumed inputs, not quoted size-tier prices.

New fee before rounding = $5.08 × 1.035 = $5.2578

At a displayed charge of $5.26, the change is $0.26 per unit. At 1,000 units per month, that is $260 per month or $3,120 for twelve months at the new charge. It is not the calendar-2026 increase: January and April changes took effect partway through that year.

If modeling unrounded amounts, $0.2578 × 12,000 is $3,093.60. Use one rounding convention consistently and reconcile forecasts to transaction-level charges. A model based on rounded $5.26 charges should not quietly switch to unrounded annual totals.

The surcharge alone on a hypothetical $5.00 base is $0.175 before rounding. That arithmetic cannot be labeled the combined impact of both changes.

Recovering the cost through price

If other costs and volume stay fixed, a $0.26 increase needs more than a $0.26 price rise when referral fees also rise with price. At an assumed unchanged 15% referral rate:

Required price increase = $0.26 ÷ (1 − 0.15) = $0.3059

Rounding upward gives approximately $0.31. Recalculate if a new price changes the applicable referral band or fulfillment pricing. Buyer demand may also change; the formula only holds contribution per unit constant.

Decide which operational change deserves testing

Inspect packaging using actual measurements before assuming a smaller box will change the fee tier. Price a physical bundle as a new packaged SKU instead of assuming two units incur one unchanged fee. Compare merchant fulfillment using your own postage, packing labor, storage, returns and service costs.

Prioritize products where the verified cost increase materially changes contribution. Remove unsupported forecasts of next year’s fee increases from the base case; if needed, label alternative fee assumptions as sensitivity scenarios.