Key fact: For fulfilment, the peak uplift applies by ship date from 15 Oct 2026 to 14 Jan 2027 — on average about $0.32 per unit across the network, but $0.20 on a small standard unit and $8.51 on an extra-large 150 lb+ unit. The 3.5% fuel & logistics surcharge is not a holiday fee (in force since 17 Apr 2026, no end date), and it is charged on the peak uplift too: (base + overage + peak) x 1.035. The free FBA Fee Simulator composes it in that order and keys the peak to your ship date, so you can price a Q4 unit before you commit.
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Peak fulfilment fees apply by ship date: a unit shipping between 15 Oct 2026 and 14 Jan 2027 carries the peak uplift, and the 3.5% fuel & logistics surcharge is charged on the uplift as well. Set the ship date to 15 Oct 2026 or later to price a peak-season unit.
| Scenario Name | Weight(oz) | L (in) | W (in) | H (in) | Storage Duration | Return% | Shipping Cost | Other Fees |
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Five storage scenarios, one price - see how size and warehouse time swing profit from +4.2% to -25.9%.
It simulates the main Amazon FBA fees: the referral fee, the FBA fulfillment fee based on your product's size and weight tier, and monthly storage fees — the three cost lines that most often decide whether a product is profitable.
Just enter your package dimensions and weight. The simulator maps them to Amazon's size tiers and applies the matching fulfillment fee automatically.
Yes. Amazon's peak fulfilment uplift runs from 15 October 2026 to 14 January 2027 and is decided by ship date, so the simulator asks for one. Set a ship date inside that window and the matching uplift for your size tier is added to the fulfilment fee, then the 3.5% fuel & logistics surcharge is applied to the whole subtotal — the surcharge is not a holiday fee and has been in force since 17 April 2026. Watch the two windows separately: monthly storage peaks earlier (1 October to 31 December) than fulfilment (15 October to 14 January), so a Q4 estimate built on a single "peak quarter" will not reconcile to the Fee Preview report.
Yes. Adjust the selling price and watch net profit and margin update instantly, so you can find the price point where the product stays profitable after all FBA fees.
Anyone evaluating an Amazon FBA product before sourcing or pricing it — especially useful for checking whether thin-margin products survive storage and fulfillment fees.
Profasee Research's State of Amazon Seller Operations 2026 is the benchmark for the decision this simulator feeds: a landed-cost change is only worth acting on once you can see the margin it produces.
Simulate the fee scenario first — size tier, weight tier, peak uplift, region — then take the resulting per-unit fee straight into the profit dashboard. The 10–15% coordination figure is what the report measures when those two views stop living in separate tools.
Source: Profasee Research, State of Amazon Seller Operations 2026 — a vendor-published benchmark report built from aggregated Profasee account data across $1M+ Amazon brands. Figures quoted verbatim, retrieved 19 Sep 2026. All 10 benchmarks with sources →
❓ FBA Fee Simulator — Frequently Asked Questions → fees, limits, and worked examples
Every rate card behind this tool comes from our open dataset — 2026 Amazon FBA fee snapshots (CC BY 4.0). What changed between monthly snapshots is dated in the Amazon FBA fee change log. Machine-readable JSON, free to cite.